Double window interlocking device and double window

Abstract

To provide a double window interlocking device in which by simply opening a sash of an inner window, a sash of an outer window on a side different from that of an inner window can be opened.SOLUTION: A double window interlocking device in which each of inner and outer windows has an inner sash and outer sash includes a first member that moves to one side in a sash movement direction in which the inner and outer sashes move, and a second member that moves to the other side in the sash movement direction as the first member moves, the first member moving in unison with the outer sash of the inner window, and the second member moving in unison with the inner sash of the outer window.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an interlocking device for a double window having an inner window and an outer window.

Background Art

[0002] Conventionally, an interlocking mechanism using a transmission member such as a chain has been used for a double window having an inner window and an outer window to interlock and connect a sliding door of the inner window and a sliding door of the outer window. When either the sliding door of the inner window or the outer window is manually opened and closed, there is a known interlocking double window in which the other sliding door simultaneously opens and closes in the same direction. (For example, see Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a double window with excellent heat insulation performance, as a method of ventilating while suppressing the transfer of heat between the indoor and outdoor, the shoji doors opened by the inner window and the outer window are made different in the left-right direction. For example, by opening the left shoji door of the inner window and the right shoji door of the outer window, it is possible to ventilate without the indoor and outdoor penetrating in the expected direction. In the above conventional interlocking double window, since the shoji doors of the inner window and the outer window move in the same direction, there is a problem that the shoji doors on different sides in the left-right direction cannot be opened by the inner window and the outer window.

[0005] In addition, in order to open the shoji on different sides of the inner window and the outer window, first, unlock the crescent lock of the inner window, open the shoji on the left side of the inner window (outer shoji), unlock the crescent lock of the outer window, and then close the outer shoji of the inner window and open the shoji on the right side of the inner window (inner shoji). After slightly opening the shoji on the right side of the outer window (inner shoji), close the inner shoji of the inner window, and finally, a procedure of slightly opening the outer shoji of the inner window is required. There is a problem that the procedure is complicated and the operation is cumbersome.

[0006] The present invention has been made in view of such problems, and an object thereof is to provide an interlocking device for double windows and double windows capable of opening the shoji on the side different from the inner window of the outer window only by opening the shoji of the inner window.

Means for Solving the Problems

[0007] The main invention for achieving such an object is an interlocking device for double windows in which the inner window and the outer window each have an inner shoji and an outer shoji, and a first member that moves to one side in the shoji movement direction in which the inner shoji and the outer shoji move, and a second member that moves to the other side in the shoji movement direction along with the movement of the first member. The first member moves integrally with the outer shoji of the inner window, and the second member moves integrally with the inner shoji of the outer window. It is an interlocking device for double windows characterized by this. Other features of the present invention will be clarified by the description in this specification and the accompanying drawings.

Effects of the Invention

[0008] According to the present invention, it is possible to provide an interlocking device for double windows and double windows capable of opening the shoji on the side different from the inner window of the outer window only by opening the shoji of the inner window.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Mode for Carrying Out the Invention

[0010] Hereinafter, the interlocking device of the double window and the double window according to an embodiment of the present invention will be described with reference to the drawings. As an example of the double window 1 according to this embodiment, as shown in FIGS. 1 to 3, an example of a double window 1 provided with a so-called sliding type fitting in which the inner window 2 and the outer window 3 each have an inner shutter 2a, 3a and an outer shutter 2b, 3b and is provided with an interlocking device 10 will be described.

[0011] The interlocking device 10 of the double window 1 is provided at the lower part between the inner window 2 and the outer window 3. Further, a crescent lock 4 is provided at the calling part on each of the inner window 2 and the outer window 3, and a locking mechanism 5 for locking the outer shutter 3b to the frame 3d is provided on the outer window 3.

[0012] In the following description, when the double window 1 is viewed from the indoor side, the vertical direction is the up-and-down direction, the left-and-right direction is the left-and-right direction, and the depth direction which is the indoor-outdoor direction is the prospective direction. Also, for each part of the double window 1 and the interlocking device 10, and for each member forming the double window 1 and the interlocking device 10 even in a single state, the direction will be specified and described in the up-and-down direction, left-and-right direction, and prospective direction in the attached state.

[0013] As shown in FIG. 4, the interlocking device 10 of the double window 1 includes a sliding guide 11 provided along the left-and-right direction which is the moving direction (shutter moving direction) of each of the shutters 2a, 2b, 3a, 3b of the inner window 2 and the outer window 3, pulleys 12 rotatably provided at both ends of the sliding guide 11 in the shutter moving direction, an annular body 20 wound around the pulley 12, a guide cover 30 covering the upper part of the sliding guide 11, two engaged members 13, 14 fixed to the annular body 20 and moving in the shutter moving direction, an inner member 40 (FIG. 5) attached to the outer shutter 2b of the inner window 2, and an outer member 50 (FIG. 6) attached to the inner shutter 3a of the outer window 3.

[0014] The sliding guide 11 is arranged along the left - right direction on the window sill 6 to which the inner window provided on the indoor side of the outer window 3 is attached. The sliding guide 11 is provided with two groove - shaped recesses 11a along the left - right direction, spaced apart from each other in the prospective direction. On both end sides in the left - right direction of the base plate portion 11b facing the window sill 6 in the sliding guide 11, shaft support holes 11c for rotatably supporting the shafts 12a of the pulleys 12 along the vertical direction are respectively provided.

[0015] The annular body 20 has an indoor moving body 21 that moves in the left - right direction in the recess 11a on the indoor side of the sliding guide 11, an outdoor moving body 22 that moves in the left - right direction in the recess 11a on the outdoor side of the sliding guide 11, and two wires 23 that connect the left ends or the right ends of the indoor moving body 21 and the outdoor moving body 22. The indoor moving body 21, the outdoor moving body 22, and the two wires 23 are each connected by screws to form an annular shape.

[0016] The indoor moving body 21 and the outdoor moving body 22 are substantially rectangular - parallelepiped - shaped, and the width in the prospective direction is formed slightly narrower than the width of the recess 11a of the sliding guide 11. The lower surfaces of the indoor moving body 21 and the outdoor moving body 22 have depressions (not shown) for accommodating the spheres 24 while protruding the spheres 24 downward. The indoor moving body 21 and the outdoor moving body 22 move in the left - right direction while the spheres 24 roll and are guided by the wall portion 11d that forms the recess 11a facing in the prospective direction in the sliding guide 11.

[0017] The guide cover 30 has a cover body 31 arranged to cover the sliding guide 11, and end caps 32 respectively attached to both end portions in the left - right direction of the cover body 31. The cover body 31 has a top plate portion 31a that covers the top of the sliding guide 11, and extension plate portions 31b that extend downward from both end portions of the top plate portion 31a in the prospective direction, and has a U - shaped cross - section with the lower part open.

[0018] On the top plate portion 31a, in a state of being disposed on the sliding guide 11, elongated holes 31c that are long in the left - right direction are respectively provided on the two recesses 11a of the sliding guide 11. On both end - side portions in the left - right direction of the top plate portion 31a, shaft support holes 31d for rotatably supporting the shafts 12a of the pulleys 12 are respectively provided.

[0019] The left and right end caps 32 have a cover insertion portion 32a inserted between the extension plate portions 31b facing each other in the prospective direction in the cover body 31, and a small - mouth cover portion 32b that projects to the outer peripheral side of the cover insertion portion 32a and covers the small mouth of the cover body 31. The cover insertion portion 32a has a curved portion 32c that faces the outer peripheral portion of the flange portion 12b of the pulley 12 with a slight gap in a state of being inserted between the extension plate portions 31b, and is fixed to the extension plate portion 31b by screws.

[0020] The guide cover 30 to which the end cap 32 is attached is fixed by screws in a state where the wire 23 of the annular body 20 is wound around the two pulleys 12 rotatably provided at both ends of the sliding guide 11. Further, in a state where the guide cover 30 is attached to the sliding guide 11, it is fixed to the window sill 6 by screws penetrating the guide cover 30 and the sliding guide 11 from above.

[0021] The two engaged members 13, 14 are disposed on the guide cover 30, and screws inserted from above respectively pass through the elongated holes 31c of the sliding guide 11 and are fixed to the indoor moving body 21 or the outdoor moving body 22 that moves in the recess 11a of the sliding guide 11. For this reason, the two engaged members 13, 14 move together with either the indoor moving body 21 or the outdoor moving body 22.

[0022] Each engaged member 13, 14 has a width in the prospective direction that is approximately the same as the width of the guide cover 30 in the prospective direction, and a width in the left-right direction that is formed wider than the width in the prospective direction. The engaged member on the indoor side (hereinafter referred to as the inner engaged member) 13 is fixed to the indoor moving body 21 and is movable rightward from the center in the left-right direction of the double window 1. The engaged member on the outdoor side (hereinafter referred to as the outer engaged member) 14 is fixed to the outdoor moving body 22 and is movable leftward from the center in the left-right direction of the double window 1. Also, when both of the two engaged members 13, 14 are located on the center side, a part of each opposite side is configured to enter into the other to avoid interference with each other.

[0023] The two engaged members 13, 14 have the same shape and are arranged with different orientations in the prospective direction. The inner engaged member 13 has an inner engaged concave portion 13a in a slit shape that is recessed downward with an inner member 40 (described later) engaged at approximately the center in the left-right direction. The inner engaged concave portion 13a has inner inclined surfaces 13b as inner guide portions on both sides and forms a mountain shape that projects upward. The inner inclined surfaces 13b are inclined so that the height becomes lower from the center side in the left-right direction toward the indoor side and the sides away from the left and right. That is, it is inclined to become lower from the upper edge on the outdoor side of the inner engaged concave portion 13a toward the indoor side and to become lower as it moves away from the inner engaged concave portion 13a to the left and right.

[0024] The outer engaged member 14 has an outer engaged concave portion 14a in a slit shape that is recessed downward with an outer member 50 (described later) engaged at approximately the center in the left-right direction. The outer engaged concave portion 14a has outer inclined surfaces 14b as outer guide portions on both sides and forms a mountain shape that projects upward. The outer inclined surfaces 14b are inclined so that the height becomes lower from the center side in the left-right direction toward the outdoor side and the sides away from the left and right. That is, it is inclined to become lower from the upper edge on the indoor side of the outer engaged concave portion 14a toward the outdoor side and to become lower as it moves away from the outer engaged concave portion 14a to the left and right.

[0025] The inner member 40 is attached to the lower end of the calling frame 2c of the outer shutter (hereinafter referred to as the inner window outer shutter) 2b of the inner window 2. As shown in FIGS. 5 and 7, the inner member 40 includes a frame contact member 41 that abuts against the calling frame 2c, a regulating member 42 attached to the frame contact member 41, a shaft body 43 spanned between the frame contact member 41 and the regulating member 42, an engaging piece 44 swingably supported by the shaft body 43, and a torsion spring 45 that biases the engaging piece 44.

[0026] The frame contact member 41 has a right contact plate portion 41a that abuts against the right side surface of the calling frame 2c of the inner window outer shutter 2b, and an outdoor contact plate portion 41b that abuts against the finding surface on the outdoor side of the calling frame 2c of the inner window outer shutter 2b. In the right contact plate portion 41a, a shaft insertion hole 41c through which the shaft body 43 is inserted is provided substantially at the center, and a locking groove 41d for locking one end of the torsion spring 45 is provided by being recessed leftward. The frame contact member 41 is fixed to the calling frame 2c by screws with the right contact plate portion 41a and the outdoor contact plate portion 41b.

[0027] The engaging piece 44 has an engaging arm portion 44a with one end forming a semi-circular arc shape and the other end extending with a width equal to the diameter of the semi-circle, and a protruding piece 44b protruding rightward at the upper part of the extended tip side. In the following description, in the engaging arm portion 44a, the side forming the semi-circular arc shape is referred to as the base end, and the opposite side is referred to as the tip.

[0028] In the engaging arm portion 44a, a shaft insertion hole 44c through which the shaft body 43 is inserted is provided at the center of the semi-circular arc. On the surface of the engaging arm portion 44a facing the right contact plate portion 41a, a locking groove 44d for locking the other end of the torsion spring 45 is provided by being recessed rightward.

[0029] The regulating member 42 is disposed on the right side of the right contact plate portion 41a and has a size substantially overlapping the right contact plate portion 41a. On the surface of the regulating member 42 facing the right contact plate portion 41a, a receiving recess 42a for receiving the base end side of the engaging arm portion 44a is provided by being recessed rightward, and a shaft insertion hole 42c through which the shaft body 43 for swingably supporting the engaging piece 44 is inserted is provided in the right side wall portion 42b located on the right side of the receiving recess 42a.

[0030] The peripheral wall portion that forms the accommodation recess 42a protruding to the left of the right side wall portion 42b includes an arc peripheral wall portion 42d that is slightly larger than the semi-circular arc at the base end of the engaged arm portion 44a to be accommodated, a lower regulation peripheral wall portion 42e that is supported by the shaft body 43 and in a state where the base end side and the tip end side are substantially horizontal, and the engaged arm portion 44a abuts thereon to regulate downward swing, and an upper regulation peripheral wall portion 42f that regulates the swing of the engagement piece 44 in a state where it swings upward by a predetermined angle (for example, 60 degrees) from a state where the base end side and the tip end side are substantially horizontal.

[0031] The engagement piece 44 is inserted through the shaft insertion hole 41c of the frame contact member 41 and the shaft body 43 that is inserted through the shaft insertion hole 42c of the regulation member 42 and spanned, together with the torsion spring 45, and is swingably accommodated in the accommodation recess 42a. The torsion spring 45 has the shaft body 43 inserted through the annular portion, one end locked to the locking groove 41d of the right contact plate portion 41a, and the other end locked to the locking groove 44d of the engagement piece 44, and biases the engagement piece 44 in the direction of abutting against the lower regulation peripheral wall portion 42e.

[0032] The engagement piece 44 accommodated in the accommodation recess 42a is swingable around the shaft body 43 between a lower end position where it abuts against the lower regulation peripheral wall portion 42e and an upper end position where it abuts against the upper regulation peripheral wall portion 42f, and is biased toward the lower end position side by the torsion spring 45. That is, the upper end position and the lower end position correspond to the swingable range of the engagement piece 44 that moves in the vertical direction around the shaft body 43.

[0033] Further, the engagement piece 44 located at the lower end position can be moved to the upper end position by an operation of raising the protruding piece 44b of the engagement piece 44 upward against the biasing force of the torsion spring 43.

[0034] The outer member 50 has substantially the same configuration as the inner member 40 but with left and right reversed. The outer member 50 is attached to the lower end of the summons frame 3c of the inner blind (hereinafter referred to as the outer window inner blind) 3a of the outer window 3. As shown in FIGS. 6 and 8, the outer member 50 includes a frame contact member 51 that abuts against the summons frame 3c, a regulating member 52 attached to the frame contact member 51, a shaft body 53 spanned between the frame contact member 51 and the regulating member 52, an engaging piece 54 swingably supported by the shaft body 53, and a torsion spring 55 that biases the engaging piece 54.

[0035] The frame contact member 51 is a plate-shaped member that abuts against the left side surface of the summons frame 3c of the outer window inner blind 3a. The frame contact member 51 is provided with a shaft insertion hole 51c through which the shaft body 53 is inserted substantially at the center, and a locking groove 51b in which one end of the torsion spring 55 is locked is recessed in the right direction. The frame contact member 51 is fixed to the summons frame 3c by screws.

[0036] The engaging piece 54 has an engaging arm portion 54a with one end formed in a semi-circular arc shape and the other end extending by the width of the diameter of the semi-circle, and a protruding piece 54b protruding leftward at the upper part of the extended tip side. In the following description, in the engaging arm portion 54a, the side forming the semi-circular arc is referred to as the base end, and the opposite side is referred to as the tip.

[0037] The engaging arm portion 54a is provided with a shaft insertion hole 54c through which the shaft body 53 is inserted at the center of the semi-circular arc. On the surface of the engaging arm portion 54a facing the frame contact member 51, a locking groove 54d in which the other end of the torsion spring 55 is locked is recessed in the left direction.

[0038] The regulating member 52 is disposed on the left side of the frame contact member 51 and has a size substantially overlapping the frame contact member 51. On the surface of the regulating member 52 facing the frame contact member 51, a receiving recess 52a for receiving the base end side of the engaging arm portion 54a is recessed on the left side, and a shaft insertion hole 52c through which the shaft body 53 for swingably supporting the engaging piece 54 is inserted is provided in the left side wall portion 52b located on the left side of the receiving recess 52a.

[0039] The peripheral wall portion that forms the accommodation recess 52a protruding to the right of the left side wall portion 52b has an arc peripheral wall portion 52d that is slightly larger than the semi-circular arc at the base end of the engaging arm portion 54a to be accommodated, and is supported by the shaft body 53 so that the base end side and the tip end side are substantially horizontal. The lower regulation peripheral wall portion 52e where the engaging arm portion 54a abuts and the downward swing is restricted, and the upper regulation peripheral wall portion 52f that restricts the swing of the engaging piece 54 in a state where it swings upward by a predetermined angle (for example, 60 degrees) from a state where the base end side and the tip end side are substantially horizontal.

[0040] The engaging piece 54 is inserted through the shaft insertion hole 51c of the frame contact member 51 and the shaft body 53 that is inserted through and spanned in the shaft insertion hole 52c of the regulating member 52, together with the torsion spring 55, and is swingably accommodated in the accommodation recess 52a. The torsion spring 55 has the shaft body 53 inserted through a circularly wound portion, one end is locked in the locking groove 51b of the frame contact member 51, and the other end is locked in the locking groove 54d of the engaging piece 54, and biases the engaging piece 54 in the direction of abutting against the lower regulation peripheral wall portion 52e.

[0041] The engaging piece 54 accommodated in the accommodation recess 52a is swingable around the shaft body 53 between a lower end position where it abuts against the lower regulation peripheral wall portion 52e and an upper end position where it abuts against the upper regulation peripheral wall portion 52f, and is biased toward the lower end position side by the torsion spring 55. That is, the upper end position and the lower end position correspond to the swingable range of the engaging piece 54 that moves in the vertical direction around the shaft body 53.

[0042] Also, the engaging piece 54 located at the lower end position can be moved to the upper end position by an operation of raising the protruding piece 54b of the engaging piece 54 upward against the biasing force of the torsion spring 53.

[0043] When the double window 1 is closed, the inner window 2 is locked with the crescent lock 4, and the outer window 3 has the outer shutter 3b and the frame 3d locked by the locking mechanism 5. Note that the outer window 3 may be provided with a crescent lock. At this time, the inner cover engaging member 13 attached to the indoor moving body 21 and the outer cover engaging member 14 attached to the outdoor moving body 22, which are respectively arranged in the two concave portions 11a of the sliding guide 11, are located at the most central side in the left-right direction. Also, the engaging piece 44 of the inner member 40 attached to the inner window outer shutter 2b is locked in the inner cover engaging concave portion 13a of the inner cover engaging member 13 in a state biased by the torsion spring 45, and the engaging piece 54 of the outer member 50 attached to the outer window inner shutter 3a is locked in the outer cover engaging concave portion 14a of the outer cover engaging member 14 in a state biased by the torsion spring 55.

[0044] When opening the double window 1 for ventilation, the user first releases the crescent lock 4 of the inner window 2 and moves the inner window outer shutter 2b to the right. When the inner window outer shutter 2b moves, the inner cover engaging member 13 and the indoor moving body 21, with which the engaging piece 44 of the inner member 40 fixed to the summons frame 2c of the inner window outer shutter 2b is engaged, move to the right together with the inner window outer shutter 2b. At this time, the outdoor moving body 22 annularly connected to the indoor moving body 21 by the wire 23, the outer cover engaging member 14, and the outer member 50 engaged with the outer cover engaging member 14 move to the left as the indoor moving body 21 moves. Here, the inner member 40 fixed to the summons frame 2c of the inner window outer shutter 2b, the inner cover engaging member 13, and the indoor moving body 21 correspond to the first member that moves to one side in the shutter moving direction, and the outdoor moving body 22, the outer cover engaging member 14, and the outer member 50 correspond to the second member that moves to the other side in the shutter moving direction as the first member moves.

[0045] Further, an outer member 50 having an engaging piece 54 engaged with the outer covering engaging member 14 and an outer window blind 3a to which the outer member 50 is fixed move leftward. Then, a screw joining the inner covering engaging member 13 that moves integrally with the outer window blind 3a and the indoor moving body 21 abuts against the edge of the long hole 31c of the guide cover 30, restricting the movement of the inner window blind 2b and also restricting the movement of the outdoor moving body 22. For this reason, since the inner window blind 2b and the outer window blind 3a move by substantially the same amount of movement, it becomes possible to open the inner window blind 2b and the outer window blind 3a with substantially the same width. Also, by adjusting the length of the long hole 31c of the guide cover 30, the amount of movement of the inner window blind 2b and the outer window blind 3a can be adjusted.

[0046] Also, when closing the opened inner window 2 and outer window 3, by moving the inner window blind 2b leftward to close it, the outer window blind 3a moves rightward as the inner window blind 2b moves, and the outer window blind 3a is also closed.

[0047] The double window 1 can be opened wider than the range in which the inner window blind 2b can be opened by the interlocking device 10 by releasing the engagement between the engaging piece 44 of the inner member 40 and the inner covering engaging member 13, and can be opened wider than the range in which the outer window blind 3a can be opened by the interlocking device 10 by releasing the engagement between the engaging piece 54 of the outer member 50 and the outer covering engaging member 14.

[0048] Since the operations and the operations of the interlocking device 10 when releasing the engagement between the engaging piece 44 of the inner member 40 and the inner covering engaging member 13 and when releasing the engagement between the engaging piece 54 of the outer member 50 and the outer covering engaging member 14 are the same, here, the release of the engagement between the engaging piece 54 of the outer member 50 and the outer covering engaging member 14 will be described as an example.

[0049] As shown in FIGS. 9(a) and 10(a), when disengaging the engaging piece 54 of the outer member 50 from the outer covering engaging member 14, with the inner window blind 2a and the inner window outer blind 2b moved to the right and fully opened, first, as shown in FIGS. 9(b) and 10(b), grip the protruding piece 54b of the engaging piece 54 of the outer member 50 and pull it upward against the biasing force of the torsion spring 55. At this time, when the engaging arm portion 54a abuts against the upper restricting peripheral wall portion 52f, the lower end of the engaging arm portion 54a is positioned above the upper end of the outer covering engaging recess 14a of the outer covering engaging member 14.

[0050] Next, with the engaging piece 54 pulled upward, move the outer window blind 3a slightly to the left. After the engaging arm portion 54a of the engaging piece 54 has moved to the left of the outer covering engaging recess 14a, release the hand from the protruding piece 54b of the engaging piece 54. At this time, the engaging piece 54 swings downward due to the biasing force of the torsion spring 55 and abuts against the outer inclined surface 14b on the left side of the outer covering engaging member 14, as shown in FIGS. 9(c) and 10(c).

[0051] After that, the outer window blind 3b can move independently. Then, by further moving the outer window blind 3a to the left, the engaging piece 54 is guided by the outer inclined surface 14b on the left side of the outer covering engaging member 14 and swings downward. After the engaging piece 54 separates from the outer inclined surface 14b on the left side, as shown in FIGS. 9(d) and 10(d), it abuts against the lower restricting peripheral wall portion 52e and becomes substantially horizontal, and the outer window blind 3a moves in this state.

[0052] When closing the outer window blind 3a from the state where the outer window blind 3a is opened to the left as shown in FIGS. 11(a) and 12(a), as shown in FIGS. 11(b) and 12(b), the lower end of the engaging piece 54 abuts against the outer inclined surface 14b on the left side of the outer covering engaging member 14. In this state, when further closing the outer window blind 3a, the engaging piece 54 is guided by the outer inclined surface 14b on the left side of the outer covering engaging member 14 and swings upward.

[0053] Thereafter, when the engaging arm portion 54a of the engaging piece 54 reaches above the outer cover engaging recess 14a, it swings downward by the biasing force of the torsion spring 55. As shown in FIGS. 11(c) and 12(c), the engaging arm portion 54a enters the outer cover engaging recess 14a, and the engaging piece 54 and the outer cover engaging member 14 are engaged with each other.

[0054] According to the interlocking device 10 of the double window 1 of the present embodiment and the double window provided with this interlocking device 10, the indoor moving body 21 moves integrally with the inner window outer shutter 2b, and the outdoor moving body 22 moves integrally with the outer window inner shutter 3a. Therefore, along with the rightward movement of the inner window outer shutter 2b, that is, the movement in the opening direction, the outer window inner shutter 3a can move leftward, that is, in the opening direction. Therefore, by simply operating to open the inner window outer shutter 2b, the inner window 2 and the outer window 3 can be opened on different sides in the shutter movement direction.

[0055] In addition, the indoor moving body 21 that moves integrally with the inner window outer shutter 2b has an inner member 40 attached to the inner window outer shutter 2b and an inner cover engaging member 13 that is detachably engaged with the inner member 40. Therefore, by releasing and separating the engagement between the inner member 40 and the inner cover engaging member 13, the inner window outer shutter 2b can be made independent and moved alone. Further, the outdoor moving body 22 that moves integrally with the outer window inner shutter 3a has an outer member 50 attached to the outer window inner shutter 3a and an outer cover engaging member 14 that is detachably engaged with the outer member 50. Therefore, by releasing and separating the engagement between the outer member 50 and the outer cover engaging member 14, the outer window inner shutter 3a can be made independent and moved alone. For this reason, it is also possible to open the same side in the shutter movement direction for the inner window 2 and the outer window 3.

[0056] In addition, the inner covering engagement member 13 and the outer covering engagement member 14 that form the annular body 20 connected annularly with the wire 23 are provided at intervals in the direction of the shoji movement and the wire 23 is wound around and spanned across two pulleys 12 that rotate around the axis 12a along the vertical direction. Since the annular body 20 is arranged on both sides of the portions wound around each pulley 12, it moves in different directions from each other in the direction of the shoji movement. For this reason, it becomes possible to move the inner window outer shoji 2b to which the inner member 40 engaged with the inner covering engagement member 13 is attached and the outer window inner shoji 3a to which the outer member 50 engaged with the outer covering engagement member 14 is attached in different directions from each other in the direction of the shoji movement.

[0057] In addition, the inner covering engagement member 13 has an inner covering engagement concave portion 13a and an inner inclined surface 13b that is provided so as to be connected in the direction of the shoji movement with the inner covering engagement concave portion 13a and with which the engagement piece 44 of the inner member 40 comes into contact and is guided to the inner covering engagement concave portion 13a. Therefore, it is possible to bring the inner member 40 that protrudes in the direction in which the inner window 2 and the outer window 3 face each other into contact with the inner inclined surface 13b of the inner covering engagement member 13 and securely engage with the inner covering engagement concave portion 13a. Further, the outer covering engagement member 14 has an outer covering engagement concave portion 14a and an outer inclined surface 14b that is provided so as to be connected in the direction of the shoji movement with the outer covering engagement concave portion 14a and with which the engagement piece 54 of the outer member 50 comes into contact and is guided to the outer covering engagement concave portion 14a. Therefore, it is possible to bring the engagement piece 54 of the outer member 50 that protrudes in the direction in which the inner window 2 and the outer window 3 face each other into contact with the outer inclined surface 14b of the outer covering engagement member 14 and securely engage with the outer covering engagement concave portion 14a.

[0058] Also, the engaging pieces 44 and 54 that are biased around the shaft bodies 43 and 53 that form an axis along the moving direction of the shoji and move vertically in the opposing direction are opposed to the inner inclined surface 13b or the outer inclined surface 14b in the moving direction of the shoji in a state of being positioned at the lower end of the swing range. For this reason, the engaging pieces 44 and 54 of the inner member 40 and the outer member 50 surely contact the inner inclined surface 13b of the inner engaged member 13 or the outer inclined surface 14b of the outer engaged member 14 when the inner outer shoji 2b or the outer inner shoji 3a moves. And the engaging pieces 44 and 54 that have contacted the inner inclined surface 13b of the inner engaged member 13 or the outer inclined surface 14b of the outer engaged member 14 swing along the inclination. At this time, when the biased engaging pieces 44 and 54 reach the inner engaged concave portion 13a or the outer engaged concave portion 14a that forms a concave portion beyond the inner inclined surface 13b or the outer inclined surface 14b, they enter the inner engaged concave portion 13a or the outer engaged concave portion 14a and are engaged. For this reason, it is possible to engage the inner member 40 and the inner engaged member 13 only by moving the inner outer shoji 2b.

[0059] Also, when attaching the inner window 2 to the indoor side of the existing outer window 3 that is already attached, by attaching the interlocking device 10 together with the inner window 2, it becomes possible to realize the double window 1 in which the inner window 2 and the outer window 3 can open different sides in the moving direction of the shoji by simply operating to open the inner outer shoji 2b.

[0060] In the above embodiment, an example using the wire 23 for the annular body 20 has been described, but it is not limited thereto. For example, a belt or a chain may be used. Also, as a method of moving the indoor moving body 21 and the outdoor moving body 22 in different directions, for example, a mechanism in which two racks engage with a pinion and the two racks move in different directions by the rotation of the pinion may be used.

[0061] In the above-described embodiment, the inner covering engagement member 13 has inner inclined surfaces 13b on both sides of the inner covering engagement recess 13a, and the outer covering engagement member 14 has outer inclined surfaces 14b on both sides of the outer covering engagement recess 14a. However, the inner inclined surface and the outer inclined surface may be provided only on one side in the left-right direction in the inner covering engagement recess 13a or the outer covering engagement recess 14a.

[0062] In the above-described embodiment, the example in which the spherical body 24 is provided below the indoor moving body 21 and the outdoor moving body 22 has been described, but the present invention is not limited thereto. For example, wheels, rollers, etc. may be provided, or a sliding plate with low friction may be provided. Further, when the indoor moving body and the outdoor moving body are formed of members with low friction, the indoor moving body and the outdoor moving body may slide directly on the base plate portion.

[0063] In the above-described embodiment, the example in which the interlocking device 10 is provided below the inner window 2 and the outer window 3 has been described, but the present invention is not limited thereto, and it may be provided above the inner window 2 and the outer window 3 in a state where the top and bottom are reversed, or may be provided above and below the inner window 2 and the outer window 3, respectively.

[0064] The above-described embodiment is for facilitating the understanding of the present invention and is not for limiting the interpretation of the present invention. The present invention can be changed and improved without departing from its gist, and it goes without saying that equivalents of the present invention are included therein.

[0065] The present embodiment includes at least the following inventions. Aspect 1: An interlocking device for a double window in which an inner window and an outer window each have an inner shutter and an outer shutter, the interlocking device having a first member that moves to one side in the shutter movement direction in which the inner shutter and the outer shutter move, and a second member that moves to the other side in the shutter movement direction as the first member moves. The first member moves integrally with the outer shutter of the inner window, and the second member moves integrally with the inner shutter of the outer window.

[0066] According to the interlocking device for double windows of Embodiment 1, the first member that moves to one side in the moving direction of the shoji is integrally moved with the outer shoji of the inner window, and the second member that moves integrally with the inner shoji of the outer window moves to the other side in the moving direction of the shoji as the first member moves. Therefore, by opening the outer shoji of the inner window, it becomes possible to open the inner shoji of the outer window. For this reason, simply by operating to open the outer shoji of the inner window, it is possible to open different sides in the moving direction of the shoji between the inner window and the outer window.

[0067] Embodiment 2: The interlocking device for double windows according to Embodiment 1, wherein the first member has an inner member attached to the outer shoji of the inner window and an inner engaged member detachably engaged with the inner member, and the second member has an outer member attached to the inner shoji of the outer window and an outer engaged member detachably engaged with the outer member.

[0068] According to the interlocking device for double windows of Embodiment 2, the first member that moves integrally with the outer shoji of the inner window has an inner member attached to the outer shoji of the inner window and an inner engaged member detachably engaged with the inner member. Therefore, by releasing and separating the engagement between the inner member and the inner engaged member, it becomes possible to make the outer shoji of the inner window independent and move it alone. Further, the second member that moves integrally with the inner shoji of the outer window has an outer member attached to the inner shoji of the outer window and an outer engaged member detachably engaged with the outer member. Therefore, by releasing and separating the engagement between the outer member and the outer engaged member, it becomes possible to make the inner shoji of the outer window independent and move it alone. For this reason, it also becomes possible to open the same side in the moving direction of the shoji between the inner window and the outer window.

[0069] Aspect 3: The double window linkage device according to Aspect 2, wherein the inner engagement member and the outer engagement member form an annular body that is annularly connected together with a wire, and the annular body is provided at intervals in the direction of movement of the shoji and the wire is wound around and spanned across two pulleys that pivot about an axis along the vertical direction, and the inner engagement member and the outer engagement member are arranged on both sides of the wound portion of the wire.

[0070] According to the double window linkage device of Aspect 3, the inner engagement member and the outer engagement member that form an annular body that is annularly connected together with a wire are provided at intervals in the direction of movement of the shoji and the wire is wound around and spanned across two pulleys pivotally attached to an axis along the vertical direction. Therefore, on both sides sandwiching the portions wound around each pulley, the directions of movement are different from each other. As a result, the inner engagement member and the outer engagement member arranged on both sides of the wound portion of the wire also move in different directions from each other in the direction of movement of the shoji. And it becomes possible to move the inner shoji to which the inner member engaged with the inner engagement member is attached and the outer shoji to which the outer member engaged with the outer engagement member is attached in different directions from each other in the direction of movement of the shoji.

[0071] Aspect 4: The double window linkage device according to Aspect 2 or Aspect 3, wherein the inner member and the outer member protrude in the facing direction in which the inner window and the outer window face each other, the inner engagement member has an inner engagement recess that is recessed upward or downward, and an inner guiding portion that is provided so as to be connected in the direction of movement of the shoji and with which the inner member comes into contact and is guided by the inner engagement recess, and the outer engagement member has an outer engagement recess that is recessed upward or downward, and an outer guiding portion that is provided so as to be connected in the direction of movement of the shoji and with which the outer member comes into contact and is guided by the outer engagement recess.

[0072] According to the interlocking device for double windows of Mode 4, the inner covering engagement member has an inner covering engagement recess that is recessed upward or downward, and an inner guiding portion that is provided in connection with the inner covering engagement recess in the direction of the shutter movement, and the inner member contacts and is guided by the inner covering engagement recess. Therefore, it is possible to reliably engage the inner member that protrudes in the direction in which the inner window and the outer window face each other with the inner guiding portion and engage it with the inner covering engagement recess. Further, the outer covering engagement member has an outer covering engagement recess that is recessed upward or downward, and an outer guiding portion that is provided in connection with the outer covering engagement recess in the direction of the shutter movement, and the outer member contacts and is guided by the outer covering engagement recess. Therefore, it is possible to reliably engage the outer member that protrudes between the inner window and the outer window with the outer guiding portion and engage it with the outer covering engagement recess.

[0073] Mode 5: The interlocking device for double windows according to Mode 4, wherein the inner guiding portion has an inner inclined surface that inclines in the direction in which the inner covering engagement recess is recessed while moving away from the inner covering engagement recess, the outer guiding portion has an outer inclined surface that inclines in the direction in which the outer covering engagement recess is recessed while moving away from the outer covering engagement recess, the inner member and the outer member are biased so as to be swingable about an axis along the direction of the shutter movement, have an engagement piece that moves up and down in the facing direction, and the engagement piece faces the inner inclined surface or the outer inclined surface in the direction of the shutter movement in a state of being located at the upper end or the lower end of the swing range.

[0074] According to the interlocking device for double windows of Mode 5, the engaging piece that is biased about an axis along the direction of the shoji movement and moves up and down in the opposite direction is in a state of being located at the upper end or the lower end of the swing range, and faces the inner inclined surface or the outer inclined surface in the direction of the shoji movement. For this reason, when the inner and outer members' engaging pieces move, the inner inclined surface of the inner engaged member or the outer inclined surface of the outer engaged member will surely come into contact with the inner and outer engaging pieces of the inner and outer shojis. And the engaging piece that has come into contact with the inner inclined surface of the inner engaged member or the outer inclined surface of the outer engaged member swings along the inclination. At this time, when the biased engaging piece reaches the inner engaged concave portion or the outer engaged concave portion that forms a concave portion beyond the inner inclined surface or the outer inclined surface, it enters and engages with the inner engaged concave portion or the outer engaged concave portion. For this reason, it is possible to engage the inner member and the inner engaged member only by moving the inner shoji, and it is possible to engage the outer member and the outer engaged member only by moving the outer shoji.

[0075] Mode 6: The interlocking device for double windows according to any one of Modes 1 to 5, characterized in that it is attached together with the inner window on the indoor side of the already attached outer window, or is attached between the already attached inner window and the outer window.

[0076] According to the interlocking device for double windows of Mode 6, when attaching the inner window to the indoor side of the already attached existing outer window, by attaching it together with the interlocking device for double windows, it is possible to realize a double window in which only by operating to open the outer shoji of the inner window, the inner window and the outer window can open different sides in the direction of the shoji movement. Also, by attaching it between the already attached inner window and outer window of the double window, even for an existing double window, it is possible to open different sides in the direction of the shoji movement between the inner window and the outer window only by operating to open the outer shoji of the inner window.

Explanation of Reference Signs

[0077] 1 Double window, 2 Inner window, 2a Inner shoji of inner window (inner shoji of the inner window) 2b Outer shoji of inner window (outer shoji of the inner window), 3 Outer window, 3a Inner window blind (inner blind of the outer window), 3b Outer window blind (outer blind of the outer window), 10 Linkage device, 12 Pulley, 12a Shaft, 13 Inner engaged member, 13a Inner engaged concave portion, 13b Inner inclined surface (inner guiding portion), 14 Outer engaged member, 14a Outer engaged concave portion, 14b Outer inclined surface (outer guiding portion), 20 Annular body, 21 Indoor moving body, 22 Outdoor moving body, 23 Wire, 40 Inner member, 50 Outer member,

Claims

1. A linkage device for a double window in which an inner window and an outer window each have an inner shutter and an outer shutter, comprising a first member that moves to one side in the shutter movement direction in which the inner shutter and the outer shutter move, and a second member that moves to the other side in the shutter movement direction as the first member moves, wherein the first member moves integrally with the outer shutter of the inner window, and the second member moves integrally with the inner shutter of the outer window. A linkage device for a double window, characterized in that

2. The linkage device for a double window according to claim 1, wherein the first member has an inner member attached to the outer shutter of the inner window and an inner engaged member detachably engaged with the inner member, and the second member has an outer member attached to the inner shutter of the outer window and an outer engaged member detachably engaged with the outer member. A linkage device for a double window, characterized in that

3. The linkage device for a double window according to claim 2, wherein the inner engaged member and the outer engaged member form an annular body that is connected in an annular shape together with a wire, the wire is wound around and spanned over two pulleys that are provided at intervals in the shutter movement direction and rotate about an axis along the vertical direction, and the inner engaged member and the outer engaged member are arranged on both sides of the portion where the wire is wound. A linkage device for a double window, characterized in that

4. The linkage device for a double window according to claim 2 or claim 3, wherein the inner member and the outer member project in the facing direction in which the inner window and the outer window face each other, the inner engaged member has an inner engaged recess that is recessed upward or downward, and an inner guiding portion that is provided continuously with the inner engaged recess in the shutter movement direction and with which the inner member comes into contact and is guided into the inner engaged recess, and the outer engaged member has an outer engaged recess that is recessed upward or downward, and an outer guiding portion that is provided continuously with the outer engaged recess in the shutter movement direction and with which the outer member comes into contact and is guided into the outer engaged recess. A linkage device for a double window, characterized in that

5. The linkage device for a double window according to claim 4, wherein the inner guiding portion has an inner inclined surface that slopes in the direction in which the inner engaged recess is recessed while moving away from the inner engaged recess, and the outer guiding portion has an outer inclined surface that slopes in the direction in which the outer engaged recess is recessed while moving away from the outer engaged recess. A linkage device for a double window, characterized in that ​ The inner member and the outer member are biased so as to be swingable about an axis along the direction of movement of the shoji, and have engaging pieces that move vertically in the facing direction. The engaging piece faces the inner inclined surface or the outer inclined surface in the direction of movement of the shoji in a state of being positioned at the upper end or the lower end of the swing range. A linkage device for a double window, characterized in that.

6. A linkage device for a double window according to claim 1 or claim 2, The linkage device for a double window is characterized in that it is attached together with the inner window to the indoor side of the outer window that has already been attached, or is attached between the inner window and the outer window that have already been attached.

Images