JP2023091713A - Operation device - Google Patents

Abstract

To provide technology that can improve operability.SOLUTION: An operation device for operating a shielding device with a bottom rail connected to the bottom end of a shielding member and an intermediate bar connected to the top end of the shielding member, with an operating section that switches the operation device between a first state allowing the bottom rail to raise/lower and a second state allowing the intermediate bar to raise/lower.SELECTED DRAWING: Figure 3

Description

This embodiment relates to an operating device for a shielding device.

2. Description of the Related Art Conventionally, as a shielding device having an operating device, one disclosed in Patent Document 1 below is known. The shielding device disclosed in Patent Document 1 includes a first driving shaft rotatably supported within the headbox and capable of moving a first moving member, and a first driving shaft rotatably supported within the headbox and having a second moving member. A second drive shaft capable of moving a member, a first pulley capable of rotationally driving the first drive shaft, and a second pulley capable of rotationally driving the second drive shaft, and winding and unwinding by the first pulley The first shielding material is moved up and down by operating a first operation cord that can be provided, and the second shielding material is moved up and down by operating a second operation cord that can be wound and unwound by a second pulley.

According to such a shielding device, since the first pulley and the second pulley can be arranged side by side in the horizontal direction, the hanging position of the first operation cord and the hanging position of the second operation cord can be different in the horizontal direction. As a result, the two types of operation codes for opening and closing the first shielding member and the second shielding member can be suspended from the headbox in an easily discernable manner.

Japanese Unexamined Patent Application Publication No. 2020-20132

However, such a shielding device requires two first and second pulleys for rotationally driving the first and second drive shafts, and two operating cords for rotationally operating the first and second pulleys, respectively. is. Although the hanging positions of the two operation cords can be made different in the horizontal direction, there is a possibility that the two operation cords may interfere with each other, such as being entangled with each other, depending on how the operation cords are operated. was Also, in a shielding device that rotates a pulley with one endless operation cord and performs different operations related to opening and closing according to the direction of rotation, one side and the other side of the endless operation cord hang down from mutually different positions. Similarly, there has been a demand for improved operability.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a technique capable of improving operability.

In order to solve the above-described problems, one aspect of the present invention provides an operation device for operating a shielding device including a bottom rail connected to the lower end of the shielding material and an intermediate bar connected to the upper end of the shielding material. and an operation unit for switching the operation device between a first state in which the bottom rail can be operated up and down and a second state in which the intermediate bar can be operated up and down. According to another aspect of the present invention, there is provided an operation device for operating a shielding device including a first shielding member arranged on the rear side and a second shielding member arranged on the front side, the operation device comprising: An operation unit is provided for switching the operating device between a first state in which the shielding material can be opened and closed and a second state in which the second shielding material can be opened and closed. According to another aspect of the present invention, there is provided an operating device for operating a vertical blind having a plurality of louvers, comprising: a first state in which the plurality of louvers can be operated to move in a closing direction; An operation unit is provided for switching the operation device between a second state in which movement in the opening direction is possible.

According to the present invention, it is possible to improve the operability of operation codes.

It is a front view which shows the structure of the shielding apparatus which concerns on 1st Embodiment. 1 is a schematic perspective plan view showing the configuration of a shielding device according to a first embodiment; FIG. It is an exploded perspective view showing composition of an operating device concerning a 1st embodiment. It is a top view which shows the internal structure of the operating device which concerns on 1st Embodiment. It is a bottom view which shows the internal structure of the operating device which concerns on 1st Embodiment. FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4 in a state where the operation cord is not pulled; FIG. 5 is a cross-sectional view taken along line AA of FIG. 4 in a state in which the operating cord is pulled; It is a bottom view which shows the structure of the connection mechanism which concerns on 1st Embodiment. FIG. 9 is a cross-sectional view taken along line BB of FIG. 8; It is a perspective view which shows the structure of a connection member. It is a perspective view which shows the structure of a connection member. 3 is an exploded perspective view showing the configuration of a switching interlocking mechanism; FIG. It is an upper perspective view which shows the structure of a switching interlocking mechanism. It is a downward perspective view which shows the structure of a switching interlocking mechanism. FIG. 4 is a plan view showing the switching interlocking mechanism in the first connected state; FIG. 10 is a plan view showing the switching interlocking mechanism in the second connected state; It is a bottom view for demonstrating the connection of a switching interlocking mechanism and a connection member. It is a top view which shows the operating device in a 1st connection state. It is a bottom view which shows the cam member whose front-end|tip part is turned to the 1st connection path. It is a bottom view which shows a connection member at the time of transfering to a 1st connection state. It is a bottom view which shows a connection member at the time of a rotational force being transmitted in a 1st connection state. It is a bottom view which shows a connection member at the time of being transferred to a non-connection state from a 1st connection state. FIG. 10 is a diagram showing a change in relative position of the cam member with respect to the cam groove relating to the transition to the first connected state; FIG. 10 shows a shielding device with bottom rail raising motion; FIG. 10 is a plan view showing the operating device in the second connected state; It is a bottom view which shows the cam member whose front-end|tip part is turned to the 2nd connection path. It is a bottom view which shows a connection member at the time of transfering to a 2nd connection state. It is a bottom view which shows a connection member at the time of a rotational force being transmitted in a 2nd connection state. It is a bottom view which shows a connection member at the time of transfering to a non-connection state from a 2nd connection state. FIG. 10 is a diagram showing changes in the relative position of the cam member with respect to the cam grooves related to the transition to the second connected state; FIG. 10 shows a shielding device with intermediate bar raising motion; It is a front view which shows the structure of the shielding apparatus which concerns on 2nd Embodiment. FIG. 11 is a schematic perspective plan view showing the configuration of a shielding device according to a second embodiment; It is a bottom view which shows the structure of the operating device which concerns on 2nd Embodiment. FIG. 4 is a plan view showing the operating device when transitioning to a connected state; It is a schematic side view which shows the structure of the shielding apparatus which concerns on 3rd Embodiment. It is a schematic side view which shows the structure of the shielding apparatus which concerns on 4th Embodiment. It is a front view which shows the structure of the shielding apparatus which concerns on 5th Embodiment. FIG. 12 is a plan view showing the operating device in the first connected state according to the fifth embodiment; FIG. 14 is a plan view showing the operating device in the second connected state according to the fifth embodiment; It is a longitudinal section showing the composition of the drive concerning a 5th embodiment. FIG. 11 is an exploded view showing the configuration of a driving device according to a fifth embodiment; Fig. 2 is a schematic plan view showing the shielding device in a fully open state; Fig. 4 is a schematic plan view showing the shielding device in a first operating state; FIG. 4 is a schematic plan view showing the shielding device in a fully closed state; Fig. 4 is a schematic plan view showing the shielding device in a second operating state;

An embodiment according to the present invention will be described with reference to the drawings. In this embodiment, a shielding device in which the present invention is applied to a pleated screen provided with two types of screens that can be raised and lowered as shielding materials will be described as an example. In this embodiment, when the shielding device is installed, the indoor side is the front, the outdoor side is the back, the direction consisting of the front and back is the front-back direction, and the longitudinal direction of the shielding device is the left-right direction. hereinafter, will be described. Further, in the present specification and drawings, constituent elements having substantially the same functions are denoted by the same reference numerals, thereby omitting redundant description.

<First embodiment>
(overall structure)
The overall configuration of the shielding device according to the first embodiment will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 is a front view showing the configuration of a shielding device according to this embodiment, and FIG. 2 is a schematic perspective plan view thereof. FIG. 1 shows the shielding device with the bottom rail lowered, and only the inside of the headbox is shown.

As shown in FIGS. 1 and 2, the shielding device 1 according to this embodiment includes a head box 2, a bottom rail 31 as a first moving member, and two lifting cords formed in a string or tape shape. 32, a screen 33 as a first shielding material, an intermediate bar 41 as a second moving member, two string-like or tape-like dimming cords 42, and a screen 43 as a second shielding material. and an operating device 6 .

The head box 2 is fixed to a window frame (not shown) or the like via a bracket 21, and is formed in a long box shape having an accommodation space inside. Inside the head box 2 are a first drive shaft 201a, two first winding drums 202a, a first brake device 203a, a first stopper device 204a, a second drive shaft 201b, and two second winding drums. A take-up drum 202b, a second brake device 203b, a second stopper device 204b, an interlocking gear 205, and a limiter 206 are accommodated.

The first drive shaft 201a, the two first winding drums 202a, the first brake device 203a, and the first stopper device 204a constitute a first drive system that moves the bottom rail 31 up and down. Also, the second drive shaft 201b, the two second winding drums 202b, the second brake device 203b, and the second stopper device 204b constitute a second drive system for moving the intermediate bar 41 up and down. The interlocking gear 205 is configured to interlock the second drive system with the first drive system under predetermined conditions. In this embodiment, the first drive system is arranged on the rear side, the second drive system is arranged on the front side, and the first drive system and the second drive system are arranged side by side in the front-rear direction with their positions different from each other. be. For example, the first drive system and the second drive system may be arranged side by side so that their positions are different in the vertical direction. You can do it.

The first and second drive shafts 201a and 201b are prismatic members that extend in the left-right direction, and are rotatably supported in the head box 2 with the axial direction in the left-right direction. Here, the axial center of the first drive shaft 201a is located at the same position and behind the axial center of the second drive shaft 201b in the vertical direction, and the positions of the axial centers are different in the front-rear direction. In the following description, the axis of the first drive shaft 201a will be referred to as the first axis, and the axis of the second drive shaft 201b will be referred to as the second axis.

Each of the two first winding drums 202a is penetrated by the first drive shaft 201a so as to rotate integrally with the first drive shaft 201a, and one end of the corresponding lifting cord 32 of the two lifting cords 32 is wound and wound. They are connected so that they can be unwound. Each of the two second winding drums 202b is penetrated by the second drive shaft 201b so as to rotate integrally with the second drive shaft 201b, and one end of the corresponding dimming cord 42 out of the two dimming cords 42 is wound. It is connected so that it can be taken up and unwound. The first stopper device 204a restrains the rotation of the first drive shaft 201a. The second stopper device 204b restrains the rotation of the second drive shaft 201b. The first brake device 203a slows down the rotation of the first drive shaft 201a. The second brake device 203b slows down the rotation of the second drive shaft 201b. The limiter 206 determines the lower limit position of the bottom rail 31 by regulating the unwinding amount of the lifting cord 32 .

The bottom rail 31 is a member elongated in the left-right direction, to which the other ends of the two lifting cords 32 are connected, and supported by being suspended from the head box 2 so as to be positioned at the lowest end of the shielding device 1 . be. The intermediate bar 41 is a member elongated in the left-right direction, to which the other ends of the two dimming cords 42 are connected, and positioned between the head box 2 and the bottom rail 31 in the vertical direction. It is suspended from the head box 2 and supported. The screen 33 is a shielding member formed in a pleated shape that can be folded in the vertical direction. is partially inserted vertically. The screen 43 is a shielding member formed in a pleated shape that can be folded in the vertical direction. 42 is partially inserted vertically.

The operating device 6 is provided at one of the left and right ends of the head box 2 as shown in FIG. to raise and lower the bottom rail 31 and the intermediate bar 41 respectively.

(Configuration of operating device)
The configuration of the operating device according to the first embodiment will be described with reference to FIG. FIG. 3 is an exploded perspective view showing the configuration of the operating device according to this embodiment.

As shown in FIG. 3, the operation device 6 includes a housing 60 (see FIG. 4), a first output shaft 61a, a second output shaft 61b, a pulley 62, an operation portion 63, a transmission shaft 65, a connecting member 66, a first A receiving member 67a, a second receiving member 67b, an input gear 68a, an output gear 68b, an intermediate gear 68c, and a switching interlocking mechanism 69 are provided.

The housing 60 is composed of two housing parts 60a and 60b and a separator 60c. Each component of the operation device 6 except for the operation section 63 is accommodated in the space defined by the two housing sections 60a and 60b. The accommodation space in the housing 60 is separated in the left-right direction by a separator 60c, and among the components accommodated in the accommodation space, only the pulley 62 is accommodated in the space on the right side of the accommodation space.

(Pulley configuration)
The configuration of the pulley according to the first embodiment will be described with reference to FIGS. 4 to 7. FIG. 4 and 5 are a plan view and a bottom view, respectively, showing the internal configuration of the operating device according to this embodiment. For convenience of explanation, in the following explanation, a view of the bottom surface viewed obliquely from below will also be referred to as a bottom view. 6 and 7 are cross-sectional views taken along line AA of FIG. 4 in a state in which the operation cord is not pulled and a state in which the operation cord is pulled, respectively.

As shown in FIGS. 4 to 7, the pulley 62 is formed in a substantially cylindrical shape as a whole and rotatably supported by a fixed shaft 601 formed in the housing portion 60a. A cord-shaped operation cord 631 is connected to the outer periphery of the pulley 62 so as to be wound and unwound. A spiral spring 621 is provided inside the pulley 62 . As shown in FIG. 6, the spiral spring 621 has one end connected to the pulley 62 and the other end connected to the fixed shaft 601 so that the biasing force in the winding direction in which the operation cord 631 is wound is applied to the pulley. 62 always granted. As a result, when the operator pulls down the operating cord 631 by a predetermined amount or more, the operating cord 631 is unwound from the pulley 62 and the pulley 62 rotates, thereby reducing the diameter of the spiral spring 621, as shown in FIG. After that, when the operator releases the operation cord 631 from being pulled down, the restoring force of the spiral spring 621 causes the pulley 62 to rotate in the opposite direction, and the operation cord 631 is wound up.

In the following description, regarding the direction of rotation about the first axis, the direction of rotation in which the operation cord 631 is unwound from the pulley 62 (counterclockwise in FIGS. 6 and 7) will be referred to as the unwinding direction. The direction of rotation in which the operation cord 631 is wound is referred to as the winding direction (clockwise in FIGS. 6 and 7).

(Construction of operation unit)
The configuration of the operation unit according to the first embodiment will be described with reference to FIGS. 1 and 4. FIG.

The operation portion 63 includes an operation cord 631 , a hollow cylindrical switching operation portion 632 , a hollow cylindrical operation rod 633 , and a cord stopper 635 , as shown in FIG. 1 . At the lower end of the operating rod 633 is formed a hollow cylindrical gripping portion 634 for the operator to grip, and a cord stop 635 is provided at the lower end of the gripping portion 634 . As shown in FIG. 4, the operation cord 631 has one end connected to the pulley 62 and the other end suspended from the pulley 62, inserted through the switching operation portion 632 and the operation rod 633, and connected to the cord stopper 635. . Although the operation cord 631 is urged upward by the urging force of the spiral spring 621, the cord stopper 635 abuts on the lower end of the grip portion 634, so that the operation cord 631 is prevented from being wound any further. When the operator pulls the cord stop 635 away from the grip portion 634, the operation cord 631 is unwound from the pulley 62 and the pulley 62 is rotated. Further, when the hand is released after being pulled down by a predetermined amount or more, the operation cord 631 is wound around the pulley 62, and the cord stop 635 and the grip portion 634 come into contact again.

The switching operation section 632 is supported at its upper end portion by the housing sections 60a and 60b so as to be rotatable around the axis. Two engaging portions 632E projecting radially outward are formed at different positions in the circumferential direction on the outer circumference of the upper end portion of the switching operation portion 632 (see FIG. 13). According to the switching operation unit 632, the switching interlocking mechanism 69 is operated according to the switching operation by the operator, as will be described in detail later. 3, the switching operation portion 632 is provided with a substantially C-shaped torque spring 639 that fastens the switching operation portion 632 while being fixed to the housing 60. As shown in FIG. As a result, when the operator grips the grip portion 634 and tries to perform a rotation operation, a torque of a predetermined amount or more is required, so that the rotation operation can be performed while obtaining an appropriate operational feeling.

(Configuration of coupling mechanism)
A connection mechanism according to the first embodiment will be described with reference to FIGS. 3 to 5 and 8. FIG. FIG. 8 is a bottom view showing the configuration of the coupling mechanism according to this embodiment.

The coupling mechanism is a mechanism that transmits the rotational force of the pulley 62 to either the first drive shaft 201a or the second drive shaft 201b, and includes the first output shaft 61a, the second output shaft 61b, the transmission shaft 65, the coupling member 66 , a first receiving member 67a, a second receiving member 67b, an input gear 68a, an output gear 68b, and an intermediate gear 68c.

As shown in FIG. 3, the transmission shaft 65 is an elongated member formed to extend in the left-right direction, and is rotatable by the housing 60 so that its axis is concentric with the first axis. pivoted. An input gear 68a is inserted through the transmission shaft 65 so as to be relatively rotatable, a pulley 62 is connected to the right end of the transmission shaft 65 so as to be able to rotate together therewith, and a first output shaft 61a is connected to the left end of the transmission shaft 65. They are connected so as to be relatively rotatable.

As shown in FIGS. 4 and 5, the first output shaft 61a is an elongated member formed to extend in the left-right direction, and is attached to the housing such that its axis is concentric with the first axis. 60 and a transmission shaft 65 are rotatably supported. A first drive shaft 201a is coupled to the left-right direction inner side (left side in FIGS. 4 and 5) end portion of the first output shaft 61a so as to be integrally rotatable.

A first receiving member 67a is integrally formed on the laterally outward side (the right side in FIGS. 4 and 5) of the first output shaft 61a. The first receiving member 67a is formed in a substantially disc shape protruding radially outward along the entire circumference of the first output shaft 61a. A plurality of engaging teeth 671 are formed at different positions in the circumferential direction on the outer surface of the first receiving member 67a in the left-right direction.

As shown in FIGS. 4 and 5, the second output shaft 61b is an elongated member formed to extend in the left-right direction, and is attached to the housing such that its axis is concentric with the second axis. It is rotatably journalled by 60 . A second drive shaft 201b is coupled to the left-right direction inner side (left side in FIGS. 4 and 5) end portion of the second output shaft 61b so as to be integrally rotatable.

The input gear 68a is a spur gear provided to rotate relative to the transmission shaft 65, as shown in FIGS. A second receiving member 67b is integrally formed on the left-right direction inner side (left side in FIGS. 4 and 5) of the input gear 68a. The second receiving member 67b is formed in a substantially disc shape protruding radially outward over the entire circumference of the transmission shaft 65 . A plurality of engaging teeth 671 are formed at different positions in the circumferential direction on the inner surface of the second receiving member 67b in the left-right direction.

The output gear 68b, as shown in FIGS. 3 to 5, is a spur gear provided to rotate integrally with the second output shaft 61b. The intermediate gear 68c is a spur gear that is rotatably supported by the housing 60 about an axis that extends in the left-right direction, and is provided so as to mesh with the input gear 68a and the output gear 68b. When rotational driving force is input to the input gear 68a, the output gear 68b can output rotational driving force in the same direction as the input gear 68a via the intermediate gear 68c via the second output shaft 61b.

(Connecting member)
The configuration of the connecting member according to the first embodiment will be described with reference to FIGS. 3 and 8 to 11. FIG. 9 is a cross-sectional view taken along the line BB of FIG. 8. FIG. 10 and 11 are perspective views showing the configuration of the connecting member. 10 shows the connecting member with the first transmission member and the cylindrical cam removed, and FIG. 11 shows the connecting member with the first transmission member removed.

The connecting member 66 is a member that is provided axially movably with respect to the transmission shaft 65, and is connected to either the first receiving member 67a or the second receiving member 67b so that the first output shaft 61a is connected to the first output shaft 61a. Alternatively, the torque of the transmission shaft 65 is transmitted to either the second output shaft 61b. As shown in FIGS. 3 and 8 to 11, the connecting member 66 includes a cylindrical cam 661, a cylindrical member 662, a clutch spring 663, a first transmission member 664 and a second transmission member 665.

The first transmission member 664 and the second transmission member 665 are provided corresponding to the first receiving member 67a and the second receiving member 67b, respectively, and each has a disk-shaped portion through which the transmission shaft 65 is inserted. The connecting member 66 is formed in a substantially cylindrical shape as a whole. (right side in FIG. 8).

As shown in FIG. 8, a plurality of engaging teeth 664E are formed at different positions in the circumferential direction on the laterally inner surface of the disk-shaped portion of the first transmission member 664 . The plurality of engagement teeth 664E are provided corresponding to the plurality of engagement teeth 671 of the first receiving member 67a. Each of the plurality of engagement teeth 671 of the member 67a is formed to be engageable in the rotational direction of the transmission shaft 65 .

A plurality of engaging teeth 665E are formed at positions different from each other in the circumferential direction on the laterally outer surface of the disk-shaped portion of the second transmission member 665 . The plurality of engagement teeth 665E are provided corresponding to the plurality of engagement teeth 671 of the second receiving member 67b. Each of the plurality of engagement teeth 671 of the member 67b is formed to be engageable in the rotational direction of the transmission shaft 65 .

As shown in FIG. 3, the first transmission member 664 has a cylindrical portion formed on the laterally outward side of the disk-shaped portion. As shown in FIGS. 9 to 11, a plurality of protrusions 65P are formed on the outer periphery of the transmission shaft 65 so as to protrude radially outward over a predetermined distance in the axial direction. The tubular portion of the first transmission member 664 is formed so that the transmission shaft 65 can be inserted therethrough, and the inner peripheral shape thereof is fitted to the plurality of projecting portions 65P. Thereby, the first transmission member 664 is provided so as to be rotatable together with the transmission shaft 65 and movable in the axial direction.

As shown in FIG. 3, the second transmission member 665 is formed with a plurality of protruding pieces that protrude inward in the left-right direction of the disc-shaped portion. As shown in FIGS. 3 and 9, a plurality of grooves are formed on the outer circumference of the cylindrical portion of the first transmission member 664 so as to extend in the left-right direction and into which the projecting pieces of the second transmission member 665 can be fitted. The first transmission member 664 and the second transmission member 665 are integrally rotated by fitting the plurality of projecting pieces of the second transmission member 665 into the plurality of grooves formed in the cylindrical portion of the first transmission member 664. Connected as possible. At this time, the cylindrical portion and the plurality of projecting pieces form a columnar portion sandwiched between the disk-shaped portions of the first transmission member 664 and the second transmission member 665 .

As shown in FIGS. 3 and 9 to 11, the cylindrical member 662 is a member formed in a substantially cylindrical shape through which the cylindrical portion formed by the first transmission member 664 and the second transmission member 665 can be inserted. . As shown in FIGS. 10 and 11, a notch is provided at the left-right direction inner end of the cylindrical member 662, that is, at the end on the side where the first transmission member 664 is positioned when the cylindrical portion is inserted. 662N is formed. As shown in FIG. 9, the first transmission member 664 is formed with a projecting portion 664P corresponding to the notch 662N. When the first transmission member 664, the second transmission member 665, and the cylindrical member 662 are assembled, the projection 664P fits into the notch 662N, so that the cylindrical member 662 is connected to the first transmission member 664 and the second transmission member 665. It is provided so as to rotate integrally with respect to.

As shown in FIG. 10, the clutch spring 663 is a linear elastic member wound so as to fasten the peripheral wall of the cylindrical member 662, and both ends of the elastic member are bent so as to face radially outward. As shown in FIGS. 8, 9 and 11, the cylindrical cam 661 is a substantially cylindrical member that can be inserted through a cylindrical member 662 around which a clutch spring 663 is wound. It is provided so as to be relatively rotatable. As shown in FIG. 11, the cylindrical cam 661 is formed with two notches 661N that are circumferentially engageable with both end portions of the clutch spring 663, respectively.

In a state where the clutch spring 663 is tightening the cylindrical member 662, the two notches 661N are engaged with both ends of the clutch spring 663, so that the cylindrical member 662 is compressed via the clutch spring 663. The rotational force is transmitted to the cylindrical cam 661 and rotates integrally with the cylindrical member 662 . Each of the two notches 661N is arranged so that when the cylindrical cam 661 rotates integrally with the cylindrical member 662 over a predetermined angular range, the two notches 661N are circumferentially engaged with the end so as to relax the clutch spring 663. It is formed. When the clutch spring 663 is relaxed, the fastening of the cylindrical member 662 by the clutch spring 663 is released, and the cylindrical cam 661 rotates relative to the cylindrical member 662 together with the clutch spring 663 .

As shown in FIG. 8, a cam groove CG is formed on the outer periphery of the cylindrical cam 661 over a predetermined distance range in the circumferential direction. The cam groove CG is a groove formed so that a later-described cam member 693C (see FIG. 12) slides relative to the cylindrical cam 661. As shown in FIG. The cam groove CG has a non-connection path CG0 extending in the circumferential direction, and a first connection path CG1 and a second connection path CG2 connected to the non-connection path CG0. The first connection path CG1 is formed to extend in the unwinding direction (upper side in FIG. 8) while being inclined outward in the left-right direction (right side in FIG. 8) with respect to the non-connection path CG0. The second connection path CG2 is formed to extend in the unwinding direction while being inclined inward in the left-right direction (left side in FIG. 8) with respect to the non-connection path CG0. The unwinding direction end of the non-connected path CG0, the winding direction end of the first connection path CG1, and the winding direction end of the second connection path CG2 are connected to each other, and the cam groove CG as a whole is approximately It is formed in a Y shape.

The cam member 693C is provided movably as will be described in detail later, but is provided so as not to move in the circumferential direction of the cylindrical cam 661 . The two notches 661N of the cylindrical cam 661 are formed corresponding to the distance range of the cam groove CG in the circumferential direction. Specifically, one of the two cutouts 661N is set so that when the cam member 693C reaches the unwinding direction side end of the first connection path CG1 and the second connection path CG2, the unwinding direction of the cylindrical cam 661 is reached. It is formed at a position that restricts rotation to. Further, the other of the two cutouts 661N is positioned to restrict rotation of the cylindrical cam 661 in the winding direction when the cam member 693C reaches the winding direction side end of the non-connection path CG0. It is formed.

According to the connecting member 66 configured in this manner, as will be described later, the connecting member 66 is moved in the axial direction of the transmission shaft 65 in accordance with the operation of the cam member 693C, whereby the connecting mechanism is moved to the first connecting position. state, a second connected state, and a non-connected state. In the first connected state, the first transmission member 664 and the first receiving member 67a are engaged in the rotational direction and connected so as to be able to transmit rotational force. In the second connected state, the second transmission member 665 and the second receiving member 67b are engaged in the rotational direction and connected so as to be able to transmit rotational force. In the unconnected state, the first transmission member 664 and the first receiving member 67a are not connected so as to transmit rotational force, and the second transmission member 665 and the second receiving member 67b are capable of transmitting rotational force. Not concatenated.

(Structure of switching interlocking mechanism)
The configuration of the switching interlocking mechanism according to the first embodiment will be described with reference to FIGS. 12 to 16. FIG. FIG. 12 is an exploded perspective view showing the configuration of the switching interlocking mechanism. 13 and 14 are an upper perspective view and a lower perspective view, respectively, showing the configuration of the switching interlocking mechanism. 15 and 16 are plan views showing the switching interlocking mechanism in the first connected state and the second connected state, respectively.

The switching interlocking mechanism 69 includes a switching transmission portion 691, a switching conversion portion 692, a switching guide portion 693, a retaining ring 694, and an elastic restricting portion 695, as shown in FIGS. The switching transmission portion 691 moves in the left-right direction according to the switching operation on the switching operation portion 632 and transmits the linear motion caused by the switching operation to the switching conversion portion 692 . The switching conversion section 692 converts the linear motion transmitted by the switching transmission section 691 into rotary motion. When the switching guide portion 693 is rotated by the switching conversion portion 692, the switching guide portion 693 guides the connecting member 66 in the left-right direction so as to switch the connecting mechanism between the first connected state and the second connected state. A snap ring 694 is used to attach the switching guide portion 693 to the switching conversion portion 692 .

As shown in FIGS. 12 to 14, the switching transmission portion 691 is formed in a substantially plate-like shape extending in the left-right direction, and is positioned below the second output shaft 61b (see FIG. 5). With the in-plane direction of the plate surface oriented horizontally, it is supported so as to be movable in the left-right direction. The switching transmission portion 691 is formed with an engaged portion 691E and a connecting hole 691H. The engaged portion 691E is formed at the front end portion of the switching transmission portion 691 on the outer side in the left-right direction (right side in FIG. 12) so as to be engaged with each of the two engaging portions 632E of the switching operation portion 632. protrude forward. The connecting hole 691H is an elongated through hole extending in the front-rear direction and formed on the left-right direction inner side (left side in FIG. 12) of the switching transmission portion 691 .

As shown in FIGS. 12 to 14, the switching conversion section 692 is a substantially plate-shaped member that extends in one direction perpendicular to the vertical direction and has one end portion that is wider than the other portion. The switching conversion unit 692 is supported by the housing 60 so as to be rotatable about an axis extending in the vertical direction with the in-plane direction of the plate surface thereof oriented horizontally. The rotation angle range of the switching conversion part 692 is limited by the housing 60 so that one end formed with a wide width is always positioned rearward. The switching conversion portion 692 is formed with a connecting hole 692H, an engaging portion 692E, a rotating shaft 692A, and a connecting pin 692P.

The connecting hole 692H is a through hole formed so as to extend in the width direction at one end (hereinafter referred to as a rear end) of the switching conversion portion 692 that is formed to have a large width. The engaging portion 692E is formed in a substantially cylindrical shape protruding upward on the other end (hereinafter referred to as the front end) side of the connecting hole 692H. The rotating shaft 692A is formed in a substantially columnar shape protruding upward on the front end side of the engaging portion 692E, and is supported by the housing 60 so that its axial direction faces the vertical direction. The connecting pin 692</b>P is formed in a substantially cylindrical shape that protrudes upward at the front end portion and is inserted through the connecting hole 691</b>H of the switching transmission portion 691 .

As shown in FIGS. 12 to 14, the switching guide portion 693 is formed in a substantially rectangular plate shape, and the switching converting portion 692 and the housing 60 are connected with the in-plane direction of the plate surface facing the horizontal. It is a member that is rotatably supported around an axis that faces in the vertical direction. The rotation angle range of the switching guide portion 693 is limited such that one end is always positioned forward and the other end is positioned rearward. The switching guide portion 693 is formed with a cam member 693C, two guided portions 693G, an engaged portion 693E, and a connecting pin 693P (see FIG. 14). In the following description, for the sake of convenience, one end positioned forward in the switching guide portion 693 will be referred to as the front end, and the other end positioned rearward will be referred to as the rear end.

The cam member 693C protrudes upward from the upper surface of the switching guide portion 693 and is formed in a substantially waterdrop shape that tapers toward the front end side when viewed from above. The two guided portions 693G are provided to face each other on the upper surface of the switching guide portion 693 so as to sandwich the cam member 693C. Two guiding portions 60G (see FIGS. 3, 15, and 16) are formed in the housing portion 60b so as to correspond to the two guided portions 693G. The two guided portions 693G are fitted and guided by the two guide portions 60G formed as grooves. As a result, the switching guide portion 693 is rotatably supported by the housing 60 about an imaginary axis facing the vertical direction so that the orientation of the front end portion of the cam member 693C is changed. Further, the housing portion 60b is formed with a rotation restricting portion 60L, which is a hole formed in a substantially rectangular shape in a plan view so that the cam member 693C can be fitted therein (see FIGS. 15 and 16). The rotation angle range of the switching guide portion 693 is restricted as described above by the two guide portions 60G and the rotation restriction portion 60L.

The engaged portion 693E is a cutout at the front end portion of the switching guide portion 693 that allows the engaging portion 692E of the switching converting portion 692 to engage with the engaging portion 692E of the switching converting portion 692 when the switching guiding portion 693 is assembled to the switching converting portion 692. formed as The connecting pin 693</b>P is formed in a substantially cylindrical shape projecting downward from the bottom surface of the switching guide portion 693 . The connecting pin 693P is formed to slidably fit into the connecting hole 692H of the switching converter 692 when the switching guide part 693 is assembled to the switching converter 692 .

The retaining ring 694 is a plate-like member having a substantially C shape in plan view. A groove is formed along the entire circumference of the side surface of the rotating shaft 692A of the switching conversion portion 692, whereby a portion of the rotating shaft 692A has a smaller diameter than the other portions. After the switching guide portion 693 is assembled to the switching conversion portion 692, the retaining ring 694 is inserted into the groove of the rotating shaft 692A so as to be fitted into the small diameter portion of the rotating shaft 692A. The retaining ring 694 is formed so as to vertically overlap a part of each of the engaging portion 692E and the switching guide portion 693 when fitted to the small diameter portion of the rotating shaft 692A. 693 is prevented from falling off from the switching conversion unit 692 .

As shown in FIGS. 3, 13, and 14, the elastic restricting portion 695 is formed by bending a long plate-like elastic member. The elastic restricting portion 695 is bent so that both ends are substantially orthogonal to the plate surface, and a projecting portion is formed at the center portion that projects in a direction opposite to the bending direction of the both ends. As shown in FIG. 13, the elastic restricting portion 695 is fixedly provided on the housing 60 so that the projecting portion faces rearward. As will be described in detail later, the connecting pin 692P of the switching conversion section 692 is provided so as to be moved in the left-right direction by the switching transmission section 691. As shown in FIG. The elastic restricting portion 695 has its projecting portion positioned on the moving path of the connecting pin 692P to restrict the movement of the switching transmission portion 691, and the connecting pin 692P moves the projecting portion against the elastic force of the elastic restricting portion 695. It is a so-called leaf spring that can bend so that it can be climbed over. According to the elastic restricting portion 695, when the connecting pin 692P gets over the projecting portion of the elastic restricting portion 695, the operator can feel a click, and the operator can grasp the operation state.

(Operation of switching interlocking mechanism)
The operation of the switching interlocking mechanism will be described with reference to FIGS. 15 to 17. FIG. FIG. 17 is a bottom view for explaining the connection between the switching interlocking mechanism and the connecting member.

As shown in FIG. 15, when the switching operation portion 632 is rotated counterclockwise in a plan view by rotating the operation portion 63, one of the two engaging portions 632E of the switching operation portion 632 moves outward in the horizontal direction. 15), and the switching transmission portion 691 is moved inward in the left-right direction (left side in FIG. 15). When the switching transmission portion 691 is moved inward in the left-right direction, the connecting pin 692P of the switching conversion portion 692 moves over the elastic restricting portion 695 and moves inward in the left-right direction, and the switching conversion portion 692 rotates around its rotation axis 692A. Rotated clockwise in plan view. When the switching conversion portion 692 is rotated clockwise, the engaging portion 692E of the switching conversion portion 692 is moved laterally outward. When the engaging portion 692E is moved outward in the left-right direction, the front end portion of the switching guide portion 693 formed with the engaged portion 693E engaged with the engaging portion 692E is pressed outward in the left-right direction. The guide portion 693 is rotated counterclockwise when viewed from above, and the distal end portion of the cam member 693C of the switching guide portion 693 is tilted outward in the left-right direction.

As shown in FIG. 16, when the switching operation portion 632 is rotated clockwise in a plan view by a rotating operation on the operation portion 63, the other of the two engaging portions 632E of the switching operation portion 632 moves inward in the left-right direction. (left side in FIG. 16) is engaged with the engaged portion 691E of the switching transmission section 691, and the switching transmission section 691 is moved laterally outward (right side in FIG. 16). When the switching transmission portion 691 is moved laterally outward, the connecting pin 692P of the switching conversion portion 692 moves laterally outward over the elastic restricting portion 695, and the switching conversion portion 692 rotates around its rotation axis 692A. Rotated counterclockwise in plan view. When the switching conversion portion 692 is rotated counterclockwise, the engagement portion 692E of the switching conversion portion 692 is moved inward in the left-right direction. When the engaging portion 692E is moved inward in the left-right direction, the front end portion of the switching guide portion 693 formed with the engaged portion 693E engaged with the engaging portion 692E is pressed inward in the left-right direction. The guide portion 693 is rotated clockwise when viewed from above, and the distal end portion of the cam member 693C of the switching guide portion 693 is tilted inward in the left-right direction.

The connecting member 66 and the switching guide portion 693 are provided in the housing 60 so that the cam member 693C fits into the cam groove CG of the cylindrical cam 661. As shown in FIG. By changing the orientation of the tip of the cam member 693C in the left-right direction in accordance with the rotation operation of the operating portion 63, the cam member is rotated in the unwinding direction, as will be described in detail later. The path in the cam groove CG in which 693C fits is changed.

(Transition operation to first drive state)
The transition operation to the first driving state will be described with reference to FIGS. 18 to 24. FIG. 18 is a plan view showing the operating device in the first connected state; FIG. FIG. 19 is a bottom view showing a cam member with its distal end directed toward the first connecting path; FIG. 20 is a bottom view showing the connecting member when transitioning to the first connected state. FIG. 21 is a bottom view showing the connecting member when rotational force is transmitted in the first connected state. FIG. 22 is a bottom view showing the connecting member when transitioning from the first connected state to the non-connected state. FIG. 23 is a diagram showing changes in the relative position of the cam member with respect to the cam grooves in transition to the first connected state. FIG. 24 is a diagram showing a shielding device in which a bottom rail raising operation is performed.

As shown in FIG. 24(a), the operating portion 63 is rotated counterclockwise in plan view, and as shown in FIG. When pulled, the connecting member 66 is moved inward in the left-right direction (to the left in FIG. 18) as shown in FIG. 18, and the connecting mechanism enters the first connected state. In the first connected state, the rotation of the pulley 62 is transmitted to the first output shaft 61a connected to the first drive shaft 201a. becomes.

When the connection mechanism is shifted to the first connection state, first, as shown in FIG. 19, the switching guide portion 693 is tilted so that the distal end portion of the cam member 693C is tilted outward in the left-right direction (to the right in FIG. 19). is rotated to When the pulley 62 is rotated in the unwinding direction in this state, as shown in FIGS. 23(c), the cam member 693C is positioned at the unwinding direction end of the first connection path CG1. In the state shown in FIG. 23(b), the end of the partition separating the first connection path CG1 and the second connection path CG2 abuts against the left-right direction inner side surface (left side in FIG. 23) of the cam member 693C, The cam member 693C is guided to enter the first connection path CG1.

Since the cam member 693C is immovably provided in the left-right direction, the cam member 693C is positioned in the first connection path CG1, so that the connection member 66 moves inward in the left-right direction (left side in FIG. 20) as shown in FIG. ), and the coupling mechanism is switched to the first coupling state.

Further, when the pulley 62 is rotated in the unwinding direction, as shown in FIG. The first output shaft 61a is rotated in the unwinding direction via the connecting member 66 and the first receiving member 67a, and the shielding device 1 is brought into the first driving state. In the first drive state, the two first winding drums 202a to which the rotational force is transmitted from the first drive shaft 201a wind up the two lifting cords 32 respectively connected to each other, thereby causing FIG. ), the bottom rail 31 is raised.

When the cord stop 635 pulled down by the operator is released, the pulley 62 is rotated in the winding direction by the restoring force of the spiral spring 621, and as shown in FIG. The operation cord 631 is wound around the pulley 62 until it abuts. At this time, the connecting member 66 is rotated in the winding direction, and as shown in FIG. Then, as shown in FIG. 23(e), the cam member 693C is positioned at the end of the unconnected path CG0 in the winding direction.

By positioning the cam member 693C on the non-coupling path CG0, the coupling member 66 is moved laterally outward (to the right in FIG. 22) as shown in FIG. 22, and the coupling mechanism is switched to the non-coupling state. Further, when the pulley 62 is rotated in the take-up direction, other components of the connecting member 66 rotate relative to the cylindrical cam 661 and the clutch spring 663. Rotation is not transmitted to any of the first and second receiving members 67a, 67b.

(Transition operation to second drive state)
The transition operation to the second driving state will be described with reference to FIGS. 25 to 31. FIG. FIG. 25 is a plan view showing the operating device in the second connected state. FIG. 26 is a bottom view showing a cam member with its distal end directed toward the second connecting path; FIG. 27 is a bottom view showing the connecting member when transitioning to the second connected state. FIG. 28 is a bottom view showing the connecting member when the rotational force is transmitted in the second connected state. FIG. 29 is a bottom view showing the connecting member when transitioning from the second connected state to the non-connected state. FIG. 30 is a diagram showing changes in the relative position of the cam member with respect to the cam grooves related to the transition to the second connected state. FIG. 31 is a diagram showing a shielding device in which an intermediate bar raising operation is performed.

As shown in FIG. 31(a), the operating portion 63 is rotated clockwise in plan view, and as shown in FIG. Then, as shown in FIG. 25, the connecting member 66 is moved laterally outward (to the right in FIG. 25), and the connecting mechanism enters the second connected state. In the second connected state, the rotation of the pulley 62 is transmitted to the second output shaft 61b connected to the second drive shaft 201b. becomes.

When the coupling mechanism is shifted to the second coupled state, first, as shown in FIG. 26, the switching guide portion 693 is tilted so that the tip portion of the cam member 693C is tilted inward in the left-right direction (left side in FIG. 26). is rotated to When the pulley 62 is rotated in the unwinding direction in this state, as shown in FIGS. 30(a) and 30(b), the cam member 693C fixedly provided in the circumferential direction of the connecting member 66 is moved to the second connecting path CG2. As shown in FIG. 30(c), the cam member 693C is positioned at the unwinding direction end of the second connection path CG2. In the state shown in FIG. 30(b), the end of the partition separating the first connection path CG1 and the second connection path CG2 abuts against the laterally outward side (the right side in FIG. 30) of the cam member 693C. , the cam member 693C is guided to enter the second connection path CG2.

Since the cam member 693C is immovably provided in the left-right direction, the cam member 693C is positioned in the second connection path CG2, so that the connection member 66 moves outward in the left-right direction (right side in FIG. 27) as shown in FIG. ), and the coupling mechanism is switched to the second coupling state.

Further, when the pulley 62 is rotated in the unwinding direction, as shown in FIG. 28, other components of the connecting member 66 rotate relative to the cylindrical cam 661 and the clutch spring 663, and the transmission shaft 65, The second output shaft 61b is rotated in the unwinding direction via the connecting member 66 and the second receiving member 67b, and the shielding device 1 is brought into the second driving state. In the second driving state, the two second winding drums 202b to which the rotational force is transmitted from the second drive shaft 201b wind up the two dimming cords 42 respectively connected thereto, thereby causing FIG. The intermediate bar 41 is raised as shown in b).

When the cord stop 635 pulled down by the operator is released, the pulley 62 is rotated in the winding direction by the restoring force of the spiral spring 621, and as shown in FIG. The operation cord 631 is wound around the pulley 62 until it abuts. At this time, the connecting member 66 is rotated in the winding direction, and the relative position between the cam member 693C and the cam groove CG changes so that the cam member 693C enters the non-connecting path CG0 as shown in FIG. 30(d). Then, as shown in FIG. 30(e), the cam member 693C is positioned at the end of the unconnected path CG0 in the winding direction.

By positioning the cam member 693C on the non-coupling path CG0, as shown in FIG. 29, the coupling member 66 is moved inward in the left-right direction (to the left in FIG. 29), switching the coupling mechanism to the non-coupling state. Further, when the pulley 62 is rotated in the take-up direction, other components of the connecting member 66 rotate relative to the cylindrical cam 661 and the clutch spring 663. Rotation is not transmitted to any of the first and second receiving members 67a, 67b.

(Effect of operating device)
Effects of the operating device according to the first embodiment will be described.

According to the operating device 6 according to the first embodiment described above, the connecting member 66 and the switching interlocking mechanism 69, specifically the cam member 693C cooperate to transmit the rotational motion of the connecting member 66 to the transmission shaft. 65 is converted into a linear motion in the axial direction, the drive shaft that transmits the rotational force of the pulley 62 can be easily switched by the rotational force of the connecting member 66, and by extension, the operation related to the switching of the driven object. can improve sexuality.

Further, by moving the connecting member 66 in the axial direction of the transmission shaft 65 using the cam member 693C and the cylindrical cam 661 formed with the cam groove CG, the rotation and axial movement of the connecting member 66 can be controlled by the operating device 6. In addition, the axial movement of the connecting member 66 can be made smooth.

Further, the pulley 62 is rotated in the winding direction by the biasing force of the spiral spring 621, and the non-connection path CG0 is formed in the cam groove CG. Transmission of rotational force from the shaft 201b to the pulley 62 can be prevented.

<Second embodiment>
(overall structure)
The overall configuration of the shielding device according to the second embodiment will be described with reference to FIGS. 32 and 33. FIG. FIG. 32 is a front view showing the configuration of the shielding device according to this embodiment, and FIG. 33 is a schematic perspective plan view thereof. Note that FIG. 32 shows the shielding device with the bottom rail lowered, and only the inside of the headbox is shown.

As shown in FIG. 32, the shielding device 1A according to this embodiment is different from the shielding device 1 according to the first embodiment in that the intermediate bar 41, the two dimming cords 42, and the screen 43 are not provided. there is In addition, the shielding device 1A includes the head box 2A instead of the head box 2, the operation device 6A instead of the operation device 6, and the operation unit 73 instead of the operation unit 63. different from

As shown in FIG. 33, the head box 2A is not provided with two second winding drums 202b, a second braking device 203b, a second stopper device 204b, and an interlocking gear 205 as components housed inside. It differs from the headbox 2 in that respect.

The operation portion 73 includes a grip portion 731 , a cord stopper 732 and an operation cord 631 . The grasping portion 731 is a member formed in a shape that can be easily grasped when the operator performs the pulling operation of the operation cord 631 , and is connected to the lower end of the operation cord 631 . The cord stopper 732 is a member formed in a size to engage with an outlet (not shown) for the operation cord 631 provided in the operation device 6A, and is attached to the middle portion of the operation cord 631 . The cord stopper 732 restricts the winding of the operation cord 631 by the pulley 62 beyond a certain amount.

(Configuration of operating device)
The configuration of the operating device according to the second embodiment will be described with reference to FIGS. 34 and 35. FIG. FIG. 34 is a bottom view showing the configuration of the operating device according to this embodiment. FIG. 35 is a plan view showing the operating device when transitioning to the connected state. It should be noted that FIG. 34 shows an operating device with pulleys omitted.

As shown in FIGS. 34 and 35, the operating device 6A according to the present embodiment includes a connecting member 66A instead of the connecting member 66 as a connecting mechanism, a second output shaft 61b, a second receiving member 67b, an input It differs from the operating device 6 in that the gear 68a, the output gear 68b, and the intermediate gear 68c are not provided, and that the switching interlocking mechanism 69 is replaced with a cam member 69C.

The connecting member 66A differs from the connecting member 66 in that the second transmission member 665 is not provided and in that the cylindrical cam 661 is replaced with a cylindrical cam 661A. The cylindrical cam 661A differs from the cylindrical cam 661 in that cam grooves CGA are formed instead of the cam grooves CG. The cam groove CGA differs from the cam groove CG in that the second connection path CG2 is not provided.

The cam member 69C is a member corresponding to the cam member 693C provided in the switching guide portion 693 provided in the switching interlocking mechanism 69 according to the first embodiment. The cam member 69C is formed in substantially the same shape as the cam member 693C, but is different from the cam member 693C in that it is non-rotatably provided in the housing 60 with its distal end tilted outward in the left-right direction.

When the grip portion 731 is pulled down by the operator and the pulley 62 rotates in the unwinding direction, the connecting member 66A is rotated so that the cam member 69C enters the first connecting path CG1. As a result, the connecting member 66A is moved inward in the left-right direction (left side in FIG. 35), and the operating device 6A connects the first transmitting member 664 and the first receiving member 67a so as to be capable of transmitting rotational force. In this state, the shielding device 1A enters a drive state in which the first drive shaft 201a is rotationally driven via the first output shaft 61a.

When the grip portion 731 is released by the operator and the pulley 62 is rotated in the take-up direction by the restoring force of the spiral spring 621, the operation cord 631 is attached to the pulley 62 until the cord stop 732 abuts the lead-out port of the operation device 6A. be wound up. At this time, the connecting member 66A is rotated so that the cam member 69C enters the non-connecting path CG0. As a result, the connecting member 66A is moved outward in the left-right direction (to the right in FIG. 35), and the connecting mechanism is in a non-connected state. Furthermore, when the pulley 62 is rotated in the take-up direction, other components of the connecting member 66A rotate relative to the cylindrical cam 661A. is not transmitted to the first receiving member 67a.

(Effect of operating device)
Effects of the operating device according to the second embodiment will be described.

According to the operation device 6A, in the shielding device 1A having only one drive system driven by the rotation of the pulley 62, the connected state is established when the grip portion 731 is pulled, and the non-connected state is established when the grip portion 731 is released. Therefore, it is possible to prevent transmission of torque from the first transmission shaft 201a to the pulley 62 with a simpler configuration.

In the first embodiment described above, the first moving member moved by the rotation of the first drive shaft 201a and the second moving member moved by the rotation of the second drive shaft 201b are vertically moved. Although the bottom rail 31 and the intermediate bar 41 are arranged on the bottom rail 31 and the intermediate bar 41, the moving direction of the first moving member and the second moving member may be either direction, and the first moving member and the second moving member are arranged in the front-rear direction. It may move vertically or horizontally. Also, the first drive shaft 201a and the second drive shaft 201b may be driven to perform two types of operations related to opening and closing of the shielding material in the shielding device. For example, with respect to the same shielding material, the first drive shaft 201a drives the shielding device to perform the first action, and the second drive shaft 201b drives the shielding device to perform the second action different from the first action. may be driven.

Further, although the rotational driving force of the pulley 62 is selectively transmitted to either the first drive shaft 201a or the second drive shaft 201b by rotating the switching operation portion 632, the present invention is not limited to this. . For example, the switching operation unit 632 may be slid vertically or horizontally.

In addition, although the pleated screen was described as an example of the shielding devices 1 and 1A, the present invention is applicable to blinds such as horizontal blinds, vertical blinds, roll screens, honeycomb screens, roll-up curtains, and accordion doors, curtains, partitions, and the like. Applicable to shielding devices.

<Third Embodiment>
The configuration of the shielding device according to the third embodiment will be described. FIG. 36 is a schematic side view showing the configuration of the shielding device according to this embodiment.

As shown in FIG. 36, the shielding device 1B according to this embodiment differs from the shielding device 1 according to the first embodiment in that the screens 33 and 43 are arranged at different positions in the front-rear direction. In addition, the shielding device 1B includes a first bottom rail 31a and a second bottom rail 31b instead of the bottom rail 31 and the intermediate bar 41, and two lifting cords 32 and two dimming cords 42. Instead, two lifting cords 32a and two lifting cords 32b are provided. In place of the head box 2, the shielding device 1B includes a head box 2B that suspends two lifting cords 32a and two lifting cords 32b from different positions in the front-rear direction.

The screen 33 has an upper end connected to the rear side of the lower surface of the head box 2B and a lower end connected to the upper surface of the first bottom rail 31a, through which the two lift cords 32a are partially inserted vertically. The screen 43 has an upper end connected to the front side of the lower surface of the head box 2B and a lower end connected to the upper surface of the second bottom rail 31b, through which the two lifting cords 32b are partially inserted vertically.

Each of the two lifting cords 32a has one end connected to the corresponding first winding drum 202a and the other end connected to the upper surface of the first bottom rail 31a. Similarly, each of the two lifting cords 32b has one end connected to the corresponding second winding drum 202b and the other end connected to the upper surface of the second bottom rail 31b.

When the first winding drum 202a is rotated in the shielding device 1B in the first drive state, the first bottom rail 31a rises and the rear screen 33 is folded from below. Similarly, when the second winding drum 202b is rotated in the shielding device 1B in the second drive state, the screen 43 on the front side is folded from below.

Thus, the operating device 6 can also be applied to the shielding device 1B having two screens 33, 43 on the front and rear.

<Fourth Embodiment>
The configuration of the shielding device according to the fourth embodiment will be described. FIG. 37 is a schematic side view showing the configuration of the shielding device according to this embodiment.

As shown in FIG. 37, the shielding device 1C according to this embodiment includes screens 36a and 36b instead of the screens 33 and 43, and a first weight instead of the first bottom rail 31a and the second bottom rail 31b. It differs from the shielding device 1B according to the third embodiment in that it includes a bar 35a and a second weight bar 35b.

Both the screens 36a and 36b are members formed in the form of thin films, and are different from the screens 33 and 43 in that they do not have creases. Each of the first weight bar 35a and the second weight bar 35b is a substantially plate-like member formed to be long, and is arranged so that its longitudinal direction is oriented in the left-right direction.

The screen 36a has an upper end connected to the rear side of the lower surface of the head box 2C, and a lower end connected to one end of the first weight bar 35a in the front-rear direction. Similarly, the screen 36b has an upper end connected to the front side of the lower surface of the head box 2C, and a lower end connected to one end of the second weight bar 35b in the front-rear direction. The first weight bar 35a and the second weight bar 35b respectively have weights that apply moderate tension to the screens 36a and 36b.

Each of the two lifting cords 32a has one end connected to the corresponding first winding drum 202a and the other end connected to one end of the first weight bar 35a in the front-rear direction. Similarly, each of the two lifting cords 32b has one end connected to the corresponding second winding drum 202b and the other end connected to the upper surface of the second weight bar 35b.

When the first winding drum 202a is rotated in the shielding device 1C in the first driving state, the first weight bar 35a rises to lift the rear screen 36a from below. Similarly, when the second winding drum 202b is rotated in the shielding device 1C in the second drive state, the front screen 36b is tucked up from below.

Thus, the operating device 6 can also be applied to a so-called Roman shade in which two screens 36a and 36b are arranged on the front and rear.

<Fifth Embodiment>
(Configuration of shielding device)
The configuration of the shielding device according to the fifth embodiment will be described. FIG. 38 is a front view showing the configuration of the shielding device according to the embodiment;

As shown in FIG. 38, the shielding device 1D according to this embodiment is a vertical blind, and includes a head rail 70, a plurality of louvers 71 as shielding materials, a master carrier 72, a plurality of carriers 76, and a first drive shaft 74a. , a second drive shaft 74b (see FIG. 41), a spacer link 75, an operating device 6B, and a drive device 8. As shown in FIG.

The headrail 70 is an elongated support member, and is attached to the upper part of the window frame or the ceiling surface via a plurality of brackets (not shown). Each of the plurality of louvers 71 is a member formed in an elongated, substantially plate-like shape. It is suspended and supported by rails 70 .

The first drive shaft 74a is provided on the head rail 70 so that its axial direction faces the longitudinal direction of the head rail 70, that is, the lateral direction. The second drive shaft 74b is provided on the head rail 70 behind the first drive shaft 74a so that its axial direction is oriented in the left-right direction. Each of the first drive shaft 74a and the second drive shaft 74b has one end (the right end in FIG. 38) connected to the driving device 8 and the other end (the left end in FIG. 38) connected to the head rail 70. rotatably pivoted; The first drive shaft 74a is a screw rod having a helical thread on its outer circumference. The second drive shaft 74b is a tilt rod having a plurality of axially extending spline grooves formed on its outer circumference.

The master carrier 72 and the plurality of carriers 76 are both inserted by the first drive shaft 74a and the second drive shaft 74b and supported so as to be movable in the left-right direction. The master carrier 72 and the plurality of carriers 76 are each connected to one longitudinal end of one louver 71 , whereby the plurality of louvers 71 are supported by the head rail 70 while being suspended. The master carrier 72 is arranged on the left side in the left-right direction with respect to the plurality of carriers 76 .

The master carrier 72 has a lead nut (not shown) that is threadedly engaged with a first drive shaft 74a configured as a screw rod, whereby the master carrier 72 is moved left and right by the rotation of the first drive shaft 74a. . Specifically, when the first drive shaft 74a rotates in the forward direction, it moves to the left in the left-right direction (close direction), and when the first drive shaft 74a rotates in the opposite direction, it moves to the right in the left-right direction (open direction). ). Adjacent carriers of the master carrier 72 and the plurality of carriers 76 are connected to each other by a belt-shaped spacer link 75 . As a result, when the master carrier 72 is moved in the closing direction, it is pulled via the spacer link 75 and the plurality of carriers 76 are also moved in the closing direction. When the master carrier 72 is moved in the opening direction, the carriers 76 are pushed by the master carrier 72 and moved in the opening direction.

The master carrier 72 and the plurality of carriers 76 are each provided rotatably around an axis extending in the vertical direction, and are engaged with one longitudinal end of the louver 71 to support the louver 71 in a suspended manner (not shown). and a worm (not shown). At the upper end of the carrier hook, a worm wheel meshing with a worm formed to be rotatable integrally with and axially movable relative to the second drive shaft 74b formed as a tilt rod is formed. Accordingly, the carrier hook is rotated by the rotation of the second drive shaft 74b. Specifically, the master carrier 72 and the plurality of carriers 76 rotate the louvers 71 counterclockwise in plan view when the second drive shaft rotates in the forward direction, and rotate the louvers 71 in the reverse direction when the second drive shaft rotates in the reverse direction. Then, the louver 71 is configured to rotate clockwise in plan view.

(Configuration of operating device)
The configuration of the operating device according to the fifth embodiment will be described. 39 and 40 are plan views showing the operating device in the first connected state and the second connected state, respectively.

As shown in FIGS. 39 and 40, an operating device 6B according to this embodiment differs from the operating device 6 according to the first embodiment in that it further includes a first transmission gear 611a and a second transmission gear 611b. In addition, in the operation device 6B, the main drive shaft 612, not the first drive shaft 201a, is connected to the first output shaft 61a so as to be able to rotate integrally, and the second drive shaft 201b is not connected to the second output shaft 61b. It is different from the operating device 6 .

The first transmission gear 611a is rotatably provided on the first output shaft 61a, and the second transmission gear 611b is rotatably provided on the second output shaft 61b. The first transmission gear 611a and the second transmission gear 611b are provided so as to mesh with each other. As a result, the rotational force of the first output shaft 61a is transmitted to the second output shaft 61b, and the rotational force of the second output shaft 61b is transmitted to the first output shaft 61a.

As shown in FIG. 39, when the pulley 62 is rotated in the operating device 6B that has been shifted to the first connected state, the first output shaft 61a is rotated in the unwinding direction. At this time, the rotational force of the first output shaft 61a is transmitted to the second output shaft 61b by the first transmission gear 611a and the second transmission gear 611b. As the second output shaft 61b rotates, the second receiving member 67b rotates in the winding direction via the output gear 68b, the intermediate gear 68c, and the input gear 68a. are not connected, the second receiving member 67b idles.

As shown in FIG. 40, when the pulley 62 is rotated in the operating device 6B that has been shifted to the second connected state, the second receiving member 67b is rotated in the unwinding direction. The rotational force of the second receiving member 67b in the unwinding direction is transmitted to the second output shaft 61b via the input gear 68a, the intermediate gear 68c, and the output gear 68b. The rotational force of the second output shaft 61b in the unwinding direction is reversed by the second transmission gear 611b and the first transmission gear 611a and transmitted to the first output shaft 61a. rotated.

As described above, according to the operation device 6B according to the present embodiment, the rotation direction of the first output shaft 61a and the main drive shaft 612 connected to the first output shaft 61a can be changed by switching the connection state of the operation device 6B. You can switch. Since the main drive shaft 612 is connected to the driving device 8 so as to transmit the rotational force, the direction of the rotational force input to the driving device 8 can be switched by switching the connection state of the operating device 6B. In the description of the drive device 8 that will be described later, regarding the rotation direction, the winding direction is referred to as the forward direction, and the unwinding direction is referred to as the reverse direction.

(Configuration of drive device)
The configuration of the driving device according to the fifth embodiment will be described. 41 and 42 are a longitudinal sectional view and an exploded assembly view, respectively, showing the configuration of the driving device according to this embodiment.

As shown in FIGS. 41 and 42, the driving device 8 includes a case 80, a sun gear 811, four planetary gears 812, a planetary carrier 813, a driving gear 831, a driven gear 832, a torque limiter 841, a first rotating body 822, A second rotor 823 and an output shaft 824 are provided.

The case 80 has a circular opening that supports the driven gear 832 in a relatively rotatable manner, and a circular opening that has internal teeth 810 that mesh with the four planetary gears 812 on its inner peripheral surface. The sun gear 811 is connected to the end of the main drive shaft 612 so as to rotate together, and meshes with the four planetary gears 812 . The planetary carrier 813 is rotatably supported by the case 80 and relatively rotatably supports the four planetary gears 812 along a circle about its rotation axis. The internal gear 810 , the sun gear 811 , the four planetary gears 812 and the planetary carrier 813 constitute a planetary gear mechanism that reduces the operating load of the pulley 62 .

The driving gear 831 is formed so as to rotate integrally with the planetary carrier 813 and meshes with the driven gear 832 . The torque limiter 841 is connected to the second drive shaft 74b so as to be rotatable together, and is connected to the driven gear 832 so as to be rotatable together. The torque limiter 841 is configured such that the driven gear 832 idles with respect to the second drive shaft 74b when a load of a predetermined amount or more acts on the second drive shaft 74b.

The output shaft 824 is formed in a substantially cylindrical shape with an opening on the inner side in the left-right direction (left side in FIG. 41). A rotating shaft 824b protrudes to the side, and an arcuate cutout 824c is formed in the substantially cylindrical portion. The rotating shaft 824 a supports the first rotating body 822 and the second rotating body 823 . The first drive shaft 74a is connected to the rotating shaft 824b so as to be rotatable therewith.

The second rotating body 823 is formed in a substantially disc shape with a through hole through which the rotating shaft 824a can be inserted, and has an engaging piece 823a and an engaging piece 823b. The engaging piece 823a is an arc-shaped member that protrudes inward in the left-right direction from the radially outer edge of the second rotating body 823, and is formed so as to be able to be introduced into the notch 824c of the output shaft 824. As shown in FIG. The engaging piece 823b is a fan-shaped member that protrudes outward in the left-right direction from the radially inner end portion of the second rotating body 823 and is angularly opened radially outward.

The first rotating body 822 is formed with a through hole through which the rotating shaft 824a can be inserted, and the planetary carrier 813 can be accommodated inside a drive gear 831 formed in a cylindrical shape forming a bottom portion on the outer side in the left-right direction. It is formed in a substantially disc shape. The first rotating body 822 has an engaging piece 822a that protrudes inward in the left-right direction from its inner side surface in the left-right direction and is formed in a fan shape that opens radially outward. An engaging piece 821 is formed on the inner peripheral wall of the planetary carrier 813 so as to protrude inward in the left-right direction and is formed in a fan-like shape with an open angle radially outward. A notch 822b into which the engagement piece 821 can be inserted is formed in the accommodated state.

According to the engaging piece 821, the first rotating body 822, the second rotating body 823, and the output shaft 824, the rotational force from the planetary carrier 813 is transmitted to the first driving shaft 74a until the second driving shaft 74b rotates by a predetermined angle. An idling mechanism is configured to prevent the idling. After idling, the rotational force of the planetary carrier 813 is transmitted to the first drive shaft 74a.

For the detailed configuration and operation of the driving device 8 including the planetary gear mechanism and the idle mechanism, please refer to Japanese Unexamined Patent Application Publication No. 2020-200637.

(Operation of shielding device)
The operation of the shielding device according to the fifth embodiment will be described. 43-46 are schematic plan views showing the shielding device in the fully open state, the first drive state, the fully closed state and the second drive state, respectively.

When all the louvers 71 are moved to the right end in the left-right direction and rotated clockwise to the limit in plan view, the shielding device 1D is fully opened as shown in FIG. In the shielding device 1D in the fully open state, when the shielding device 1D is switched to the first drive state and the operation cord 631 is pulled to rotate the pulley 62 in the unwinding direction, as shown in FIG. The second drive shaft 74b is rotated forward through the operation device 6B and the drive device 8, and the louver 71 is rotated counterclockwise. At this time, the idling mechanism does not rotate the first drive shaft 74a.

When the pulley 62 is further rotated in the unwinding direction, the louver 71 is rotated counterclockwise to the limit as shown in FIG. idling. At the timing when the idle rotation of the driven gear 832 is started, the idle rotation by the idle rotation mechanism is finished, and the first drive shaft 74a is rotated in the forward direction. When the first drive shaft 74a rotates forward, the master carrier 72 moves in the closing direction, and the louvers 71 move in the closing direction as shown in FIG. 44(c).

When the pulley 62 is further rotated in the unwinding direction and the master carrier 72 is moved to the left end in the left-right direction, the shielding device 1D is fully closed as shown in FIG. In the shielding device 1D in the fully closed state, when the shielding device 1D is switched to the second drive state, the operation cord 631 is pulled, and the pulley 62 is rotated in the unwinding direction, as shown in FIG. , the operating device 6B, and the driving device 8, the second driving shaft 74b is rotated in the opposite direction to rotate the louver 71 clockwise. At this time, the idling mechanism does not rotate the first drive shaft 74a.

When the pulley 62 is further rotated in the unwinding direction, the louver 71 is rotated clockwise to the limit as shown in FIG. idle. At the timing when the idle rotation of the driven gear 832 is started, the idle rotation by the idle rotation mechanism is finished, and the first drive shaft 74a is rotated in the reverse direction. When the first drive shaft 74a is rotated in the opposite direction, the master carrier 72 moves in the opening direction, and the louvers 71 move in the opening direction as shown in FIG. 46(c).

Thus, according to the operating device 6B, it is possible to improve the operability of the shielding device 1D that performs different operations depending on the rotation directions of the first drive shaft 74a and the second drive shaft 74b.

The invention may be embodied in various other forms without departing from its spirit or essential characteristics. Therefore, each above-mentioned embodiment is only an illustration in every respect, and should not be interpreted restrictively. The scope of the present invention is indicated by the claims and is not restricted by the text of the specification. Furthermore, all modifications, various improvements, substitutions and modifications that fall within the equivalent scope of claims are within the scope of the present invention.

1 shielding device 74a, 201a first drive shaft 74b, 201b second drive shaft 31 bottom rail (first moving member)
41 intermediate bar (second moving member)
6, 6A, 6B Operating device 62 Pulley 63 Operating part 631 Operation cord 65 Transmission shaft 66 Connecting member 67a First receiving member 67b Second receiving member 69 Switching interlocking mechanism 71 Louver 691 Switching transmission part 692 Switching conversion part 693 Switching guide part 695 Elastic regulation part

Claims (8)

An operating device for operating a shielding device comprising a bottom rail connected to the lower end of a shielding material and an intermediate bar connected to the upper end of the shielding material,
An operation device comprising an operation unit that switches the operation device between a first state in which the bottom rail can be operated up and down and a second state in which the intermediate bar can be operated up and down. a transmission shaft to which a rotational driving force is transmitted from a pulley rotated by an operator;
When the operating device is switched to the first state, the operating device is switched to the second state, and is connected to a first drive shaft that vertically drives the bottom rail so that the rotational force of the transmission shaft can be transmitted. 2. The operating device according to claim 1, further comprising a connecting member that is connected to a second drive shaft that drives the intermediate bar up and down so that the rotational force of the transmission shaft can be transmitted. An operating device for operating a shielding device comprising a first shielding member arranged on the rear side and a second shielding member arranged on the front side,
An operation device comprising an operation unit that switches the operation device between a first state in which the first shielding member can be opened and closed and a second state in which the second shielding member can be opened and closed. a transmission shaft to which a rotational driving force is transmitted from a pulley rotated by an operator;
When the operating device is switched to the first state, the operating device is connected to the first driving shaft for opening and closing the first shield so that the rotational force of the transmission shaft can be transmitted, and the operating device is switched to the second state. 4. The operation according to claim 3, further comprising a connecting member that is connected to a second driving shaft that drives the second shielding member to open and close when switched so as to be able to transmit the rotational force of the transmission shaft. Device. An operating device for operating a vertical blind comprising a plurality of louvers, comprising:
An operation device comprising an operation unit that switches the operation device between a first state in which the plurality of louvers can be operated to move in the closing direction and a second state in which the plurality of louvers can be operated to move in the opening direction. a transmission shaft to which a rotational driving force is transmitted from a pulley rotated by an operator;
When the operating device is switched to the first state, a drive shaft that drives the plurality of louvers to open and close is coupled to transmit the forward rotational force of the transmission shaft, and the operating device is switched to the second state. 6. The operating device according to claim 5, further comprising a connecting member that is connected to the drive shaft so as to transmit the rotational force in the opposite direction of the transmission shaft when the switching is performed. The operating device according to any one of claims 1 to 6, wherein the switching operation to the first state or the second state is performed by rotating the operating section. 7. The apparatus according to any one of claims 1 to 6, wherein the switching operation to the first state or the second state is performed by moving the operation section vertically or horizontally. operating device.

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