Operating device

Abstract

To provide a technique capable of allowing an operator to easily recognize the operating state of a switchgear.SOLUTION: An operation unit 52 is for operating a switchgear capable of switching between multiple operation states. The operation unit includes: a state switching unit that is rotationally operated by an operator and thereby transmits the rotation to the switchgear and switches the operation state of the switchgear; and identification units 552T and 552B provided in the state switching unit to indicate the operation state of the switchgear to the operator according to the rotation of the state switching unit.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present embodiment relates to an operating device for operating a switching device. [Background technology]

[0002] Conventionally, the technology disclosed in Patent Document 1 below is known as a technology for switching the operation of a switching device using this type of operating device. According to this technology, the operating device has an operating rod and an operating member, and by rotating the operating rod, it is possible to switch between an ascending operation in which the bottom rail of the switching device is raised when the operating member is pulled downward, and a descending operation in which the bottom rail is lowered when the operating member is pulled downward. In this way, by being able to switch the operating state of the switching device by rotating the operating rod, it is possible to improve the operability of the switching device. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2016 / 001764 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the above-described opening and closing device, the operator cannot recognize the operating state of the opening and closing device after rotating the operating rod, and as a result, there is a possibility that the operator will operate the opening and closing device in an undesired operating state.

[0005] The present invention has been made to solve the above-mentioned problems, and has an object to provide a technique that allows an operator to easily recognize the operating state of a switching device. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, one aspect of the present invention is an operating device for operating an opening / closing device that can be switched between multiple operating states, characterized in that it includes a state switching unit that, when rotated by an operator, transmits the rotation to the opening / closing device and switches the operating state of the opening / closing device, and an identification unit that is provided in the state switching unit and indicates the operating state of the opening / closing device in a manner that is recognizable to the operator in accordance with the rotation of the state switching unit. [Effects of the Invention]

[0007] According to the present invention, an operator can easily recognize the operating state of a switching device. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a front view showing the configuration of an opening and closing device according to a first embodiment. [Figure 2] 1 is a front view showing an operation unit provided in an opening and closing device according to a first embodiment. [Figure 3] FIG. 2 is an exploded perspective view of an operation unit according to the first embodiment. [Figure 4] FIG. 3 is a cross-sectional view taken along line AA shown in FIG. 2. [Figure 5] FIG. 3 is a cross-sectional view taken along line BB shown in FIG. 2. [Figure 6] FIG. 3 is a cross-sectional view taken along line CC shown in FIG. 2. [Figure 7] 1 is a front view showing a state in which the opening and closing device according to the first embodiment is in a raised and lowered state and the cord holder is pulled. [Figure 8] FIG. 10 is a partial side view of the operating unit in a raised / lowered state. [Figure 9] 1 is a front view showing a state in which the opening and closing device according to the first embodiment is in a dimming state and the cord stopper is pulled. [Figure 10] FIG. 10 is a partial side view of the operation unit in a dimming state. [Figure 11] FIG. 10 is a front view showing an operating unit provided in an opening and closing device according to a second embodiment. [Figure 12] FIG. 12 is a cross-sectional view taken along line DD shown in FIG. [Figure 13] FIG. 11 is a front view showing the opening and closing device according to the third embodiment in a raised and lowered state and with the cord holder pulled. [Figure 14] FIG. 11 is a front view showing a state in which the opening and closing device according to the third embodiment is in a dimming state and the cord stopper is pulled. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In this embodiment, the present invention will be described as being applied to an operating device for an opening / closing device that is a pleated screen equipped with two types of screens that can be raised and lowered as an opening / closing body. In this embodiment, the indoor side of the opening / closing device when installed will be referred to as the front, the outdoor side as the back, the direction consisting of the front and back as the front-to-rear direction, and the longitudinal direction of the opening / closing device as the left-to-right direction. In addition, in this specification and drawings, components that have substantially the same functions will be assigned the same reference numerals, and redundant explanations will be omitted.

[0010] First Embodiment (Overall composition) First, the overall configuration of the opening and closing device according to this embodiment will be described. Fig. 1 is a front view showing the configuration of the opening and closing device according to this embodiment. Note that Fig. 1 shows the opening and closing device in a state where the bottom rail is lowered.

[0011] As shown in Figure 1, the opening and closing device 1 of this embodiment includes a head box 2, a bottom rail 31 as a first movable member, two lifting cords 32 formed in the form of strings or tapes, a screen 33 as a first shielding material, an intermediate bar 41 as a second movable member, two dimmer cords 42 formed in the form of strings or tapes, the screen 43 as a second shielding material, and an operation unit 5.

[0012] The head box 2 is formed in a roughly rectangular parallelepiped shape that defines an internal storage space, and is fixed to a window frame (not shown) or the like via multiple brackets 21. Inside the head box 2, a first drive shaft, a first winding drum, etc. that constitute a first drive system that raises and lowers the bottom rail 31 are provided, and a second drive shaft, a second winding drum, etc. that constitute a second drive system that raises and lowers the intermediate bar 41 are provided.

[0013] The bottom rail 31 is connected to the other ends of the two lifting / lowering cords 32, is suspended from the head box 2 so as to be located at the lowest end of the opening / closing device 1, and is a member formed long in the left-right direction. The intermediate bar 41 is connected to the other ends of the two dimmer cords 42, and is suspended from the head box 2 so as to be located between the head box 2 and the bottom rail 31 in the up-down direction, and is a member formed long in the left-right direction.

[0014] The screen 33 has an upper end connected to the underside of the intermediate bar 41 and a lower end connected to the upper surface of the bottom rail 31, is formed in a pleated shape that can be folded up and down, and is an open-close body through which two lifting cords 32 are partially inserted in the vertical direction. The screen 43 has an upper end connected to the underside of the head box 2 and a lower end connected to the upper surface of the intermediate bar 41, is formed in a pleated shape that can be folded up and down, and is an open-close body through which two dimmer cords 42 are partially inserted in the vertical direction.

[0015] The operation unit 5 is used to operate the opening / closing device 1 and is provided at one of the left and right ends of the head box 2 (the right end in the present embodiment). A first drive shaft and a second drive shaft are inserted through the main body case 50. Inside the main body case 50, there are provided pulleys to which one end of an operation cord is connected so as to be capable of being wound / unwound, primarily for rotating the drive shafts, and a switching interlocking mechanism that switches the state in which the rotation of the pulley is transmitted to either the first drive shaft or the second drive shaft (hereinafter referred to as the "operating state"). The switching interlocking mechanism is exposed on the front side of the main body case 50 and engages with a switching operation unit 51, whose upper end is supported by the main body case 50 so as to be rotatable about its axis. Rotating the switching operation unit 51 engages the switching interlocking mechanism, thereby switching the operating state. In this embodiment, the operating state can be switched between a lifting state in which the first drive shaft is rotated to raise and lower the bottom rail 31, and a dimming state in which the second drive shaft is rotated to raise and lower the intermediate bar 41.

[0016] The operation unit 52 is connected to the switching operation unit 51 so as to hang down, and a cord stopper 59 is provided at the lower end of the operation unit 52. As described above, one end of the operation cord is connected to the pulley, and the other end hangs down from the main body case 50, is inserted into the switching operation unit 51 and the operation unit 52, and is connected to the cord stopper 59. The pulley is biased by the biasing force of the power spring so as to wind up the operation cord, but the cord stopper 59 abuts against the lower end of the operation unit 52, preventing further winding of the operation cord. When the operator pulls the cord stopper 59 away from the operation unit 52, the operation cord is unwound from the pulley and the pulley rotates. When the operator pulls the cord stopper 59 down by more than a predetermined amount and then releases it, the operation cord is wound around the pulley, and the cord stopper 59 and the operation unit 52 abut again.

[0017] (Operation unit 52) The configuration of the operating unit according to the first embodiment will be described below with reference to FIGS. 2 to 6. FIG. 2 is a front view showing the operating unit according to this embodiment, and FIG. 3 is an exploded perspective view thereof. FIGS. 4 to 6 are cross-sectional views taken along lines AA, BB, and CC, respectively, shown in FIG. 2. As shown in FIG. 2, operating unit 52 according to this embodiment includes operating rod 53, joint portion 54, upper fixed portion 55, grip operating portion 56, and lower fixed portion 57. Each of the above elements constituting operating unit 52 is formed in a hollow, approximately cylindrical shape, which allows an operating cord to be inserted into operating unit 52.

[0018] 3 to 5, the operating rod 53 is formed in the shape of a hollow hexagonal pillar extending in the axial direction, with its upper end fixedly fitted into the joint part 54 and its lower end passing through the upper fixing part 55 and the grip operating part 56 and inserted into the lower fixing part 57. An annular groove 531 is formed on the outer circumferential surface of the operating rod 53 near the lower end.

[0019] As shown in FIGS. 3 and 4 , the joint portion 54 is formed in a hollow cylindrical shape, and a pair of connecting pieces 541, which are radially opposed to each other and extend upward from the upper end of the joint portion 54. Holes 542 are formed near the tips of the pair of connecting pieces 541. An annular swinging member (not shown) attached to the switching operation unit 51 so as to be swingable in the front-rear direction is interposed between the pair of connecting pieces 541, and multiple support shafts (not shown) protruding from the circumferential surface of the swinging member are inserted into the holes 542, thereby supporting the joint portion 54 so as to be rotatable relative to the swinging member. The operating rod 53 can swing freely in the front-rear direction and the left-right direction relative to the switching operation unit 51 via the joint portion 54. The inner periphery of the inserted portion of the joint portion 54, through which the operating rod 53 is inserted, is hexagonal so that the inner periphery conforms to the outer periphery of the operating rod 53, thereby connecting the joint portion 54 to the operating rod 53 so as to be rotatable together with the operating rod 53 about its axis.

[0020] As shown in Fig. 5, the upper fixing part 55 is formed in the shape of a hollow cylinder with a hexagonal inner periphery that uniformly fits the outer periphery of the operating rod 53, and is connected to the operating rod 53 so as to be rotatable integrally about the axis when the operating rod 53 is inserted therethrough. As shown in Figs. 3 and 4, the upper fixing part 55 has an expanded diameter portion that is larger in diameter than the operating rod 53 at the top and a small diameter portion that is smaller in diameter than the expanded diameter portion at the bottom, and two notches are formed on the outer periphery of the expanded diameter portion to form a flat portion 551a that is parallel to the axial direction of the operating rod 53 and a flat portion 551b that is parallel to the flat portion 551a. In Figs. 1 to 5, the flat portion 551a faces forward.

[0021] The flat surface portion 551a is provided with an indicator 552T having a protruding portion 552a that protrudes from the surrounding area and a recessed portion 552b that is located below the protruding portion 552a and recessed from the surrounding area. Meanwhile, the flat surface portion 551b is provided with an indicator 552B in which the protruding portion 552a is located below the recessed portion 552b. That is, the protruding portion 552a is located at an upper position in the indicator 552T, and at a lower position in the indicator 552B. The indicators 552T and 552B visually indicate to the operator whether the operating state of the opening / closing device 1 is the lifting / lowering state or the dimming state, and details thereof will be described later. As shown in FIG. 4 , the small-diameter portion of the upper fixing portion 55 is inserted into the grip operation portion 56, and a pair of claws 553 whose tips protrude radially outward are provided on the peripheral surface near the lower end of the small-diameter portion to engage with the grip operation portion 56. In this embodiment, the pair of claw portions 553 are provided at positions spaced 180° apart in the circumferential direction.

[0022] As shown in Figures 3, 4, and 6, the grip operation part 56 is formed in the shape of a hollow cylinder with a circular inner periphery, and the upper fixed part 55 and the lower fixed part 57 are attached by inserting the small-diameter portion of the upper fixed part 55 from above and inserting a pair of connecting pieces 573 (described later) of the lower fixed part 57 from below. As shown in Figure 4, on the inner circumferential surface of the grip operation part 56 facing the small-diameter portion of the upper fixed part 55, engagement pieces 561 that protrude radially inward and have downwardly bent tips are formed uniformly in the circumferential direction. The grip operation part 56 is attached to the upper fixed part 55 so that it cannot come off, with its upper surface abutting against the lower surface of the enlarged-diameter portion of the upper fixed part 55 and the engagement pieces 561 engaging with a pair of claws 553 of the upper fixed part 55.

[0023] 3, the lower end of the grip operation portion 56 is a small-diameter portion 562 having a smaller diameter than the upper portion, and the circumferential surface thereof is formed with a pair of grooves 563 extending in the axial direction and a pair of claws 564 protruding radially outward. In this embodiment, the pair of grooves 563 are formed at positions spaced 180° apart in the circumferential direction, and the pair of claws 564 are formed at positions spaced 90° apart from the grooves 563 in the circumferential direction.

[0024] As described above, the grip operation part 56 has a circular inner periphery, and is therefore rotatable about its axis relative to the upper fixed part 55. As shown in FIGS. 3, 4, and 6, a clutch spring 58 is interposed between the small diameter portion of the upper fixed part 55 and the inner periphery of the grip operation part 56. As shown in FIG. 6, the clutch spring 58 is fastened by being wound around the periphery of the small diameter portion of the upper fixed part 55, and both ends thereof protrude slightly radially outward. A protrusion 565 that protrudes radially inward is provided on a portion of the inner periphery of the grip operation part 56 facing the clutch spring 58, more specifically, on a portion of the inner periphery located between both ends of the clutch spring 58, as shown in the same figure.

[0025] The protrusion 565 protrudes until its tip is positioned radially inward relative to both ends of the clutch spring 58. Therefore, when the grip operation part 56 rotates relative to the upper fixed part 55, its circumferential end surface abuts against one of both ends of the clutch spring 58. When the grip operation part 56 is further rotated with the protrusion 565 abutting against the clutch spring 58, the protrusion 565 biases the clutch spring 58 to rotate in the circumferential direction. Because the clutch spring 58 is tightening the small diameter portion of the upper fixed part 55, the bias causes the clutch spring 58 to rotate integrally with the upper fixed part 55. In response to this rotation of the upper fixed part 55, the operating rod 53, which is connected to the upper fixed part 55 so as to be rotatable integrally with it, also rotates in the same direction. Since the rotation of the operating rod 53 is transmitted to the switching operation part 51 by the joint part 54 as described above, the rotation of the operating rod 53 activates the switching interlocking mechanism, making it possible to switch the operating state.

[0026] On the other hand, after the switching interlocking mechanism is switched, further rotation of the switching operation unit 51 in the same direction is restricted by the switching interlocking mechanism. Therefore, rotation of the upper fixed part 55 in the same direction is also restricted via the operating rod 53. If an attempt is made to further rotate the grip operation unit 56 in the same direction in this state, the clutch spring 58 continues to be urged in the circumferential direction by the protrusion 565. However, because the rotation of the upper fixed part 55 is restricted and the clutch spring 58 is fastened to the upper fixed part 55, the clutch spring 58 does not rotate easily, and the grip operation unit 56 also does not rotate easily due to the reaction force of the clutch spring 58. However, if the grip operation unit 56 is further rotated with a stronger force, that is, if a rotational torque greater than a predetermined amount is applied to the clutch spring 58, the clutch spring 58 will relax and spin freely together with the grip operation unit 56 relative to the upper fixed part 55. Therefore, even if the gripping operation part 56 continues to rotate in the same direction after the switching interlocking mechanism is switched, the clutch spring 58 will rotate freely, and the rotation of the gripping operation part 56 will not be transmitted to the switching operation part 51 and the switching interlocking mechanism.

[0027] From the above, the clutch spring 58 maintains the fastened state until the rotation of the switching operation unit 51 is restricted, allowing the grip operation unit 56 and the upper fixed unit 55 to rotate together, but when the rotation of the switching operation unit 51 in one direction is restricted and a rotational torque (rotational torque equal to or greater than a predetermined amount) sufficient to release the fastened state as a result of further rotation in one direction is applied, the clutch spring 58 transitions to a relaxed state, allowing the grip operation unit 56 to rotate relative to the upper fixed unit 55. Note that when the rotation of the switching operation unit 51 in one direction is restricted and a rotational torque (rotational torque less than a predetermined amount) sufficient to not release the fastened state as a result of further rotation in one direction is applied, the clutch spring 58 can restrict the rotation of the grip operation unit 56 in one direction. Therefore, the clutch spring 58 can switch the operating part 52 between a transmission state (fastened state) in which the rotation of the grip operating part 56 can be transmitted to the opening and closing device 1, and a non-transmission state (relaxed state) in which the rotation cannot be transmitted to the opening and closing device 1, thereby realizing the function of a torque limiter that reduces excessive rotational torque from being applied to other components.

[0028] As shown in FIGS. 3 and 4 , the lower fixing part 57 has an outer peripheral part 571 formed in a hollow, generally ring-like shape. A hollow, generally ring-like inner peripheral part 572 is provided radially inward of the outer peripheral part 571, and these parts are connected at their respective lower ends. A pair of connecting pieces 573 facing each other in the radial direction are provided at the upper end of the inner peripheral part 572 so as to extend upward. Protrusions 574 protruding radially inward are provided at the tips of the pair of connecting pieces 573. When the lower fixing part 57 is attached to the grip operation part 56, as shown in FIG. 4 , the pair of connecting pieces 573 are inserted into the small-diameter part 562 of the grip operation part 56, and the protrusions 574 fit into the annular groove 531 of the operating rod 53. This fit prevents the lower fixing part 57 from falling off the operating rod 53. In this state, the lower surface formed at the step between the small diameter portion 562 of the grip operation portion 56 and its upper portion comes into contact with the upper surface of the outer circumferential portion 571 of the lower fixing portion 57, so that the lower fixing portion 57 can support the grip operation portion 56. In other words, the upper fixing portion 55 and the grip operation portion 56 are supported by the operating rod 53 via the lower fixing portion 57 so that they cannot fall off.

[0029] 4, the small diameter portion 562 of the grip operation portion 56 is inserted into a ring-shaped hole 575 defined between the outer peripheral portion 571 and the inner peripheral portion 572. At this time, protrusions (not shown) that protrude radially inward and are provided on the inner peripheral surface of the outer peripheral portion 571 fit into a pair of grooves 563 of the small diameter portion 562, and a pair of claws 564 of the small diameter portion 562 engage with holes (not shown) provided on the inner peripheral surface of the outer peripheral portion 571. This connects the grip operation portion 56 and the lower fixed portion 57 so as to be rotatable together about the axis.

[0030] When fitted in the annular groove 531 of the operating rod 53, the protrusion 574 of the lower fixed part 57 can slide inside the annular groove 531. Therefore, the lower fixed part 57 is connected to the operating rod 53 so as to be rotatable relative to the operating rod 53 about the axis. Therefore, even if the grip operation part 56 is rotated and the rotation continues after the switching interlocking mechanism is switched, the lower fixed part 57 can rotate freely relative to the operating rod 53 together with the grip operation part 56.

[0031] The small diameter portion 562 of the grip operation portion 56 may not be provided with the groove portion 563 and the claw portion 564, and the grip operation portion 56 and the lower fixed portion 57 may be configured to be relatively rotatable. In this case, the operator can stabilize the posture of the operation portion 52 by gripping the lower fixed portion 57 with one hand, and then grip and rotate the grip operation portion 56 with the other hand.

[0032] (device operation) Next, the function of the identification units 552T, 552B will be described along with the operation of the opening and closing device according to this embodiment. Fig. 7 is a front view showing the opening and closing device according to this embodiment in a raised and lowered state with the cord stopper pulled, and Fig. 8 is a partial side view of the operating unit in the raised and lowered state. Fig. 9 is a front view showing the opening and closing device according to this embodiment in a dimming state with the cord stopper pulled, and Fig. 10 is a partial side view of the operating unit in the dimming state. In Figs. 8 and 10, the left side of the drawing indicates the indoor side, i.e., the front side.

[0033] The indicators 552T and 552B allow the operator to intuitively recognize the operation state of the opening / closing device 1 based on the position of the convex portion 552a. Specifically, when the upper fixing portion 55 is rotated counterclockwise in a plan view together with the grip operation portion 56 (see FIG. 7) and the indicator 552B faces the front, i.e., toward the operator, as shown in FIG. 8, the opening / closing device 1 is switched to the raised / lowered state. In other words, when the indicator 552B is in a position facing the front, the switching interlocking mechanism is configured to switch the operation state of the opening / closing device 1 to the raised / lowered state. In the indicator 552B, the convex portion 552a is located below the concave portion 552b, so the operator can easily recognize that the bottom rail 31, which is located below the intermediate bar 41, is the object to be operated, i.e., that the opening / closing device 1 is in the raised / lowered state. Similarly, when the upper fixing portion 55 is rotated clockwise in a plan view (see FIG. 9) together with the grip operation portion 56, and the identification portion 552T faces forward as shown in FIG. 10, the opening and closing device 1 is switched to the dimming state. In other words, when the identification portion 552T is in a position facing forward, the switching interlock mechanism is configured to switch the operation state of the opening and closing device 1 to the dimming state. In the identification portion 552T, the convex portion 552a is located above the concave portion 552b, so the operator can easily recognize that the intermediate bar 41, which is located above the bottom rail 31, is the object to be operated, that is, that the opening and closing device 1 is in the dimming state.

[0034] As shown in Fig. 8, when the cord stopper 59 is pulled while the identification unit 552B is positioned on the indoor side, i.e., on the operator side, the opening and closing device 1 is in the up-and-down state, so the bottom rail 31 rises as shown in Fig. 7. On the other hand, as shown in Fig. 10, when the cord stopper 59 is pulled while the identification unit 552T is positioned on the indoor side, the opening and closing device 1 is in the dimming state, so the intermediate bar 41 rises as shown in Fig. 9.

[0035] According to the present embodiment described above, by interposing the clutch spring 58 between the grip operation unit 56 and the upper fixed portion 55, which is rotatable integrally with the operating rod 53, the operation unit 52 can be provided with a torque limiter function. Therefore, when the grip operation unit 56 rotates more than a predetermined amount, i.e., when the grip operation unit 56 rotates further in the same direction after the switching interlock mechanism is switched, the grip operation unit 56 can be caused to rotate freely relative to the upper fixed portion 55. This prevents excessive rotational torque from being applied to the connecting structure, such as the joint portion 54, the switching operation unit 51, and the switching interlock mechanism, thereby preventing damage to components of the opening / closing device 1. Furthermore, according to the present embodiment, the simple configuration of interposing the clutch spring 58 between the grip operation unit 56 and the upper fixed portion 55 allows the operation unit 52 to have a torque limiter function at low cost without increasing the size of the device. Furthermore, because the clutch spring 58 is provided near the grip operation unit 56, even when excessive rotational torque is applied from the grip operation unit 56, the locations where an overload is applied can be minimized.

[0036] Furthermore, by rotating the operation unit 52 while checking the indicators 552T, 552B, the operator can intuitively recognize whether the opening / closing device 1 is in the lifting / lowering state or the dimming state after the rotation operation. The indicators 552T, 552B are not provided on the long, small-diameter operation rod 53, but on the upper fixed part 55, which has a larger diameter than the operation rod 53. Therefore, restrictions on the shape and size of the indicators 552T, 552B are relaxed compared to when the indicators are provided on the operation rod 53. Furthermore, when the operation state of the opening / closing device 1 is switched in response to the rotation of the grip operation unit 56, the indicators 552T, 552B are positioned on the operator's side, so the operator can easily recognize the indicators 552T, 552B. Furthermore, even if excessive rotational torque is applied to the gripping operation part 56, the clutch spring 58 causes the gripping operation part 56 to rotate freely relative to the upper fixed part 55, so that the identification parts 552T, 552B are always in the correct position without being displaced, i.e., the identification part indicating the current operating state of the opening and closing device 1 is always facing the front (towards the operator).

[0037] In this embodiment, the bottom rail 31 and intermediate bar 41 of the opening / closing device 1 are connected vertically. However, they may also be connected longitudinally, for example, with the bottom rail 31 positioned forward and the intermediate bar 41 positioned rearward as a second bottom rail. Even in this case, the operator can easily understand that the indicator 552B indicates the lifting / lowering state by operating the front bottom rail 31, and the indicator 552T indicates the dimming state by operating the rear intermediate bar 41 (second bottom rail). On the other hand, the bottom rail 31 and intermediate bar 41 may also be connected laterally, for example, with the bottom rail 31 positioned on the right and the intermediate bar 41 (second bottom rail) positioned on the left. In this case, the operator can easily recognize the operating state of the opening / closing device 1 by configuring the indicator 552B so that the convex portion 552a is on the right and the concave portion 552b is on the left, and configuring the indicator 552T so that the convex portion 552a is on the left and the concave portion 552b is on the right. In addition, in this embodiment, the diameters of the convex portion 552a and the concave portion 552b are approximately the same, but by making the diameter of the convex portion 552a larger than the diameter of the concave portion 552b, the operator can more easily recognize the operating state of the opening and closing device 1.

[0038] <Second embodiment> Fig. 11 is a front view showing an operating unit provided in an opening and closing device according to this embodiment, and Fig. 12 is a cross-sectional view taken along line DD shown in Fig. 11. Note that Fig. 11 shows a vertical cross section of the upper part of operating rod 53 and joint part 54A.

[0039] As shown in FIG. 11 , operation unit 52A according to this embodiment differs from operation unit 52 according to the first embodiment in that clutch spring 58 is fastened to operation rod 53 so as to be interposed between operation rod 53 and joint unit 54A. Also, operation unit 52A according to this embodiment differs from operation unit 52 according to the first embodiment in that upper fixing unit 55 is eliminated and indicators 552T, 552B are provided on grip operation unit 56. Grip operation unit 56 according to this embodiment is connected to operation rod 53 so as to be rotatable integrally with it. As shown in FIG. 12 , joint unit 54A according to this embodiment has protrusion 543 provided on a part of its inner circumferential surface facing clutch spring 58, more specifically, on a portion of the inner circumferential surface located between both ends of clutch spring 58, the protrusion 543 having a tip end surface that protrudes radially inward from both ends of clutch spring 58.

[0040] The protrusion 543 has the same function as the protrusion 565 of the grip operation unit 56 according to the first embodiment. In other words, when the grip operation unit 56 is rotated and the operating rod 53 rotates relative to the joint unit 54, one of the two ends of the clutch spring 58 comes into contact with the circumferential end surface of the protrusion 543. When the operating rod 53 is further rotated while in contact with the protrusion 543, the clutch spring 58 urges the protrusion 543 in the same direction as the direction of rotation. This urging causes the operating rod 53, the clutch spring 58, and the joint unit 54A to rotate in the same direction. The rotation of the joint unit 54A is transmitted to the switching operation unit 51, and therefore the rotation of the joint unit 54A can activate the switching interlocking mechanism, making it possible to switch the operating state.

[0041] On the other hand, after the switching interlocking mechanism is switched, further rotation of the switching operation unit 51 in the same direction is restricted by the switching interlocking mechanism. Therefore, rotation of the joint portion 54A in the same direction is also restricted. In this state, if an attempt is made to further rotate the grip operation unit 56 in the same direction, the protrusion 543 continues to be urged circumferentially by the clutch spring 58. However, because rotation of the joint portion 54A is restricted and the clutch spring 58 is fastened to the operation rod 53, the protrusion 543 does not rotate easily, and the grip operation unit 56 also does not rotate easily due to the reaction force of the clutch spring 58. However, if the grip operation unit 56 is further rotated with a stronger force, that is, if a rotational torque greater than a predetermined amount is applied to the clutch spring 58, the clutch spring 58 relaxes, and the operation rod 53 together with the grip operation unit 56 spins freely relative to the clutch spring 58. Therefore, even if the gripping operation part 56 continues to rotate in the same direction after the switching interlocking mechanism is switched, the clutch spring 58 will rotate freely, and the rotation of the gripping operation part 56 will not be transmitted to the switching operation part 51 and the switching interlocking mechanism.

[0042] According to the present embodiment described above, even if clutch spring 58 is interposed between operating rod 53 and joint portion 54A, it is possible to provide operating unit 52A with the torque limiter function as in the first embodiment. Furthermore, operating unit 52 according to the first embodiment cannot function as a torque limiter when operating rod 53 is directly gripped and rotated, but according to the present embodiment, it is possible to provide the torque limiter function even when operating rod 53 is rotated.

[0043] <Third embodiment> Fig. 13 is a front view showing the opening / closing device according to the third embodiment in the raised / lowered state and with the cord stopper pulled, and Fig. 14 is a front view showing the opening / closing device according to the third embodiment in the dimming state and with the cord stopper pulled. Operation unit 52B according to this embodiment differs from operation unit 52 according to the first embodiment in that identification units 554T and 554B are provided on upper fixed unit 55 instead of identification units 552T and 552B.

[0044] 13, the identification unit 554B is marked with a square mark 554a, and the mark 554a is also marked on the left end of the bottom rail 31 in the figure. When the identification unit 554B is at the front, the opening and closing device 1 is in the lifting / lowering state, and the bottom rail 31 can be raised and lowered by pulling the cord stopper 59. By simply checking the identification unit 554B, the operator can intuitively recognize that the opening and closing device 1 has been switched to the lifting / lowering state in which the bottom rail 31 to be operated is the bottom rail 31 marked with the same mark 554a as the mark 554a on the identification unit 554B.

[0045] 14, the identification unit 554T has a circular mark 554b attached thereto, and the mark 554b is also attached to the left end of the intermediate bar 41 in the drawing. When the identification unit 554T is at the front, the opening and closing device 1 is in a dimming state, and the intermediate bar 41 can be raised and lowered by pulling the cord stopper 59. By simply checking the identification unit 554T, the operator can intuitively recognize that the opening and closing device 1 has been switched to a dimming state in which the intermediate bar 41, which has a mark 554b similar to the mark 554b on the identification unit 554T attached thereto, is the object of operation.

[0046] The indicators 554T, 554B are not limited to the examples described above, and marks of other shapes, such as a triangle, may be used, and the operating state may be identified by color, for example, with mark 554a being red and mark 554b being blue. Furthermore, text such as "up" and "down" may also be used, and in such cases, it is not necessary to write text on the bottom rail 31 or intermediate bar 41. Furthermore, the operating state may be recognized by the operator not only by visually checking the indicators, but also by touch or sound.

[0047] In this embodiment, the first movable member moved by rotation of the first drive shaft and the second movable member moved by rotation of the second drive shaft are the bottom rail 31 and the intermediate bar 41, respectively, which move up and down, but the movement direction of the first movable member and the second movable member may be in either direction, and the first movable member and the second movable member may be arranged front to back and move up and down or left to right, respectively. Also, while a pleated screen has been used as an example of the opening and closing device, the present invention can be applied to various opening and closing devices, such as blinds (e.g., horizontal blinds, vertical blinds, roller screens, honeycomb screens, pull-up curtains, and accordion doors), curtains, partitions, shutters, sashes, and windows, as long as they have first and second movable members and can switch their operating states by rotating the operating unit 52.

[0048] Furthermore, the first drive shaft and the second drive shaft may be driven to perform two types of operations related to opening and closing of the opening / closing body (shielding material) in the opening / closing device. For example, for the same opening / closing body, the first drive shaft may drive the opening / closing device to perform a first operation (for example, raising and lowering the slats), and the second drive shaft may drive the opening / closing device to perform a second operation different from the first operation (for example, tilting the slats).

[0049] The present invention can be embodied in various other forms without departing from the spirit or main characteristics thereof. Therefore, the above-described embodiments are merely illustrative in all respects and should not be interpreted as limiting. The scope of the present invention is defined by the claims and is not limited to the text of the specification. Furthermore, all modifications, improvements, substitutions, and alterations within the scope of the claims are within the scope of the present invention. [Explanation of symbols]

[0050] 1 Switchgear 31 bottom rail (first moving member, moving member) 33,43 Screen (opening and closing body) 41 Intermediate bar (second moving member) 51 Switching operation unit (connection unit) 52 Operation unit (operation device, state switching unit) 53 Operation rod (grip, connection part, state switching part) 54 Joint section (connection section, state switching section) 55 Upper fixed part (operation rod) 552T, 552B, 554T, 554B identification part 552a Convex part (index part) 554a Mark (Indicator) 554b Mark (Indicator) 56 Grip operation unit (grips, operation rod, state switching unit) 58 Clutch spring (transmission switching part)

Claims

1. An operating device for operating a switching device that can be switched to a plurality of operating states and performs different operations according to each operating state, a state switching unit having a first operating unit that, when rotated by an operator, transmits the rotation to the opening / closing device and switches the operating state of the opening / closing device, and a second operating unit that, when the operator performs an operation different from the rotation operation, causes the opening / closing device to perform an operation corresponding to the switched operating state; an identification unit provided in the first operating unit and recognizably indicating an operating state of the opening and closing device to an operator in response to rotation of the first operating unit; An operating device comprising:

2. a plurality of the identification units are provided on the first operation unit, the plurality of indicators each indicate a different operation state, any one of the plurality of identification units is positioned on the operator side when the first operation unit is rotated; The opening and closing device is switched to an operation state indicated by an indicator located on the operator side.

2. The operating device according to claim 1.

3. The plurality of identification units each have an index unit. The indicator portion is different from the plurality of distinguishing portions in at least one of a position, a shape, a color, and a written character provided thereon, and The operating state of the opening and closing device can be recognized based on the indicator portion of the identification portion positioned on the operator side.

3. The operating device according to claim 2.

4. the first operating unit includes an operating rod that is connected to the opening / closing device so as to be able to transmit the rotation to the opening / closing device, and a fixed portion that is provided so as to be able to rotate integrally with the operating rod and has a diameter larger than that of the operating rod, The identification portion is provided on the fixed portion.

4. The operating device according to claim 1, wherein the operating device is a control panel.

5. the first operating unit has a gripping portion that an operator grips and rotates; The grip portion rotates integrally with the operating rod when the operating state is switched by being rotated in one direction, and rotates relative to the operating rod when the grip portion is further rotated in the same direction after being rotated in the same direction to switch the operating state.

5. The operating device according to claim 4.

6. The operation state includes a first operation state and a second operation state, the opening and closing device has a first moving member and a second moving member, drives the first moving member in the first operating state, and drives the second moving member in the second operating state; the identifying portion has a first identifying portion and a second identifying portion, When the first operating unit is rotated in one direction and the opening / closing device is switched to the first operating state, the first identifying unit is located on the operator's side, and when the first operating unit is rotated in the other direction and the opening / closing device is switched to the second operating state, the second identifying unit is located on the operator's side.

6. The operating device according to claim 1, wherein the operating device is a control panel.

7. The operation state includes a first operation state and a second operation state, the opening and closing device has an opening and closing body, a first operation is performed on the opening and closing body in the first operation state, and a second operation different from the first operation is performed on the opening and closing body in the second operation state, the identifying portion has a first identifying portion and a second identifying portion, When the first operating unit is rotated in one direction and the opening / closing device is switched to the first operating state, the first identifying unit is located on the operator's side, and when the first operating unit is rotated in the other direction and the opening / closing device is switched to the second operating state, the second identifying unit is located on the operator's side.

6. The operating device according to claim 1, wherein the operating device is a control panel.

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