JP4815683B2 - Structure of blind device and window frame - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a structure of a blind device and a window frame which are arranged on a window of a building such as a detached house or an apartment house, and blinds such windows as necessary.
[0002]
[Problems to be solved by the invention]
In this type of blind device, a blind composed of a plurality of slats juxtaposed in the vertical direction is usually arranged at the top, and the blind is lowered from above by the operation of the lifting device, thereby concealing the openings such as the windows of the building. The blind is lifted by the reverse operation of the lifting device to open (open) the opening.
[0003]
By the way, in such a blind device, when the opening portion is opened, the accommodation portion that accommodates the slat is disposed above the opening portion of the building, so that the degree of opening of the opening portion of the building is reduced by the accommodation portion. Therefore, even if the blind is raised to open the opening, there may be a case where a sufficient open feeling cannot be obtained. In view of this, a blind device has been proposed in which the blind is disposed below when the opening is opened and the upper end of the blind is lifted when the opening is closed (closed).
[0004]
In the blind device according to this proposal, since it is possible to omit the accommodating portion arranged above the opening of the building, it is very preferable that a sufficient opening feeling can be obtained at the opening of the opening, but the blind is raised. The manually operable ball chain is usually placed outside the window shoddles to avoid tampering with the building frame. As a result, the blinds are opened once when opening and closing the blinds. The ball chain must be manually operated.
[0005]
However, it is very troublesome to open the shoji every time the opening is opened and closed by the blinds. In addition, when air conditioning, heating, cooling, etc. are performed indoors, these are wasteful, and the outside of the shoji If the ball chain hangs down, it is not preferable in terms of crime prevention.
[0006]
The present invention has been made in view of the above points, and the object of the present invention is to be able to open and close the opening by blinds without opening and closing the shoji, and to add additional hands to the building frame. An object of the present invention is to provide a structure of a blind device and a window frame that can be easily installed without adding.
[0007]
[Means for Solving the Problems]
The structure of the blind device and the window frame according to the first aspect of the present invention supports a blind composed of a plurality of slats juxtaposed in a vertical direction between a pair of vertical frames, and respective ends of the slats. A foldable link mechanism arranged in each vertical frame, a flexible long body having one end connected to the upper end of the link mechanism, and the other end of the long body being connected A blind device including a rotating body that winds and feeds a long body by rotation and a string-like body that rotates the rotating body is provided outside the window of the building frame, where the string-like body is a building It hangs down to the indoor side of the window through the part of the window frame attached to the housing.
[0008]
According to the structure of the first aspect, by manually manipulating the string-like body, the rotating body is rotated to wind up and feed out the long body, and the upper end portion of the link mechanism is moved by winding and feeding out the long body. The window is lifted and lowered to close and open the opening with the blinds, and the string-like body is hung down to the indoor side of the window through the part of the window frame attached to the building frame. Therefore, it is possible to open and close the opening by blinds without opening and closing the shoji installed on the window frame, and in addition, it can be installed without any additional work on the building frame.
[0009]
The string-like body in the present invention only needs to pass through a portion of the window frame, but preferably, a through hole or a recess is formed in the window frame as in the structure of the second aspect of the present invention. The window frame may be passed through the through-hole or the recess and further passed through the guide tube mounted on the window frame as in the structure of the third aspect of the present invention. Here, the guide tube preferably has a pair of guide passages separated from each other inside, like the structure of the fourth aspect of the present invention. In the case of such a guide tube, the endless string-like body may pass through each of the pair of guide passages and the portion of the window frame. In a preferred example, the pair of guide passages is the first of the present invention. Like the structure of the fifth aspect, they are juxtaposed in the vertical direction or in the horizontal direction. The string-like body may be an end body or an endless body.
[0010]
The guide tube may be a rigid body, but preferably has flexibility such as a flexible tube as in the structure of the sixth aspect of the present invention. As in the structure of the seventh aspect, it is preferable that the inner peripheral surface is covered with a sliding material because the string-like body can be smoothly run.
[0011]
The string-like body may be a ball chain, a string, a wire or a belt made of metal or synthetic resin as in the structure of the eighth aspect of the present invention, preferably a ball chain, particularly A metal ball chain is preferable.
[0012]
Preferably, as in the structure of the ninth aspect of the present invention, the window frame includes an upper frame, the string-like body passes through a portion of the upper frame, and the tenth aspect of the present invention. As in the above structure, the window frame includes an upper frame and a shoji rail integrally formed on the lower surface of the upper frame, and the string-like body passes through the portion of the shoji rail. In addition, you may hang a string-like body in the indoor side of a window through the upper part of the vertical frame of a window frame.
[0013]
In order to ensure that the window of the string-like body hangs down on the indoor side, a guide member that guides the string-like body hanging down may be attached to the window frame as in the structure of the eleventh aspect of the present invention. Good.
[0014]
Next, the present invention will be described in more detail with reference to preferred examples of embodiments shown in the drawings. The present invention is not limited to these examples.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
1 to 7, the blind device 1 of this example includes a blind 5 composed of a plurality of slats 4 juxtaposed in a vertical direction between a pair of vertical frames 2 and 3, and end portions of the slats 4 in the longitudinal direction. A foldable link mechanism 7 (the vertical frame 3 side is not shown, the same applies hereinafter) disposed in the vertical frames 2 and 3 and the slats 4 are respectively connected via the link mechanism 7. In order to tilt, a tilt mechanism 10 connected to the link mechanism 7 (the vertical frame 3 side is not shown, the same applies hereinafter) and a lower end portion is a termination mechanism 8 (also the vertical frame 3 side is not shown, the same applies hereinafter). And a link lifting mechanism 9 that lifts the upper end portion of the link mechanism 7 connected to each of the vertical frames 2 and 3 via the tilt mechanism 10 and places the blind 5 in the closed position.
[0016]
The vertical frame 3, the link mechanism on the vertical frame 3 side, the termination mechanism, the tilt mechanism, and the like are configured in the same manner as the vertical frame 2, the link mechanism 7, the termination mechanism 8, the tilt mechanism 10, etc. on the vertical frame 2 side. Therefore, the vertical frame 2 side will be mainly described below, and the vertical frame 3 side will be described as necessary.
[0017]
The vertical frame 2 and the vertical frame 3 are bridged by the upper frame 15 to form an opening 16 that is opened and closed by the blind 5. The vertical frame 2 is formed with a slit 17 extending in the vertical direction.
[0018]
Each of the slats 4 includes a large hook-shaped portion 21 exposed to the outside when the opening 16 is closed, and a small hook-shaped portion that is superposed on the lower end side of the upper large hook-shaped portion 21 when the opening 16 is closed. 22, and a sealing member 23 is fitted to the lower end portion of the large bowl-shaped portion 21.
[0019]
The link mechanism 7 includes a plurality of vertical link members 25 connected in series via a shaft pin 26 so as to be rotatable in series, and a plurality of vertical link members 28, similar to the vertical link row 27. The vertical link row 30 is connected to the vertical link row 27 in parallel with each other via a shaft pin 29 and is connected to the vertical link row 27, and one end portion is connected to the vertical link row 27 via the shaft pin 26. Each of the slats 4 includes a plurality of lateral link members 31 rotatably connected to the longitudinal link row 30 via the other shaft pins 29. The end 6 is fixedly coupled to the lateral link member 31 by a fixture 33 that passes through the slit 17. In addition, in order to define the folding direction of the vertical link rows 27 and 30, the vertical link members 25 and 28 are integrally provided with blocking pieces 34.
[0020]
The end mechanism 8 includes a link member 41 rotatably connected to the lowest horizontal link member 31 of the horizontal link row 32 via an axial pin (not shown) at one end, and the other end of the link member 41 at one end. The link member 43 is rotatably connected to the shaft pin 42 and the other end of the link member 43 is rotatably connected to the bottom wall 45 of the vertical frame 2. The base member 46 is fixed, and the lower end portion of the link mechanism 7 is connected to the vertical frame 2 through the terminal mechanism 8.
[0021]
The link member 41 or 43 in the end mechanism 8 is configured by a retractable coil spring or the like so that the lower end portion of the link mechanism 7 can be slightly displaced up and down by the coil spring or the like, and the link mechanism 7 is extended. In this case, the link mechanism 7 may be elastically pulled downward as a whole.
[0022]
The link lifting mechanism 9 bridges the turning roller 52 and the vertical frames 2 and 3 that are rotatably supported by the vertical frame 2 via the shaft 51, and rotatably supports the vertical frames 2 and 3 at both ends. The rotating shaft 53, the pulley 54 as a rotating body rotatably supported by the vertical frame 2 via the rotating shaft 53, and the feeding end which is one end are connected to the plate-like main body 55 of the linearly movable member 50. In addition, the other end is connected to the pulley 54 and is wound around the turning roller 52 and is fixed to the rotary shaft 53 and a metal belt 56 as a flexible long body wound around the pulley 54. And a rotational drive device 57 for rotating the pulley 54.
[0023]
The link lifting mechanism 9 also includes a turning roller 52a, a pulley 54a, and a metal belt 56a that are configured in the same manner as the turning roller 52, the pulley 54, and the metal belt 56 on the vertical frame 2 side. The pulley 54a is fixed to the end of the rotary shaft 53 on the vertical frame 3 side.
[0024]
The rotation drive device 57 is supported by the vertical frame 2 and has a housing 61 through which the rotary shaft 53 is rotatably passed, a ball chain 62 as an endless string, and the housing 61 and the vertical frame 2. A shaft 63 rotatably supported on the shaft 63, a ball chain 62 is wound around, a pulley 64 fixed to the shaft 63, and a housing 61. The shaft 63 is rotated by the rotation of the pulley 64. Is decelerated and output to the rotating shaft 53, and the rotating shaft 53 is prevented from rotating by the dead weight of the blind 5 and the link mechanism 7, etc., while the pulley 64 is allowed to rotate by the travel of the ball chain 62. Is provided with a speed reduction / braking mechanism 65 for applying to the rotation shaft 53 or the shaft 63.
[0025]
According to the rotation driving device 57, one of the hanging portions 71 of the ball chain 62 is manually pulled down to rotate the pulley 64 as a rotating member in the R1 direction, so that the shaft 63 and the deceleration and braking mechanism 65 are interposed. The rotation shaft 53 can be decelerated and rotated, and the rotation of the rotation shaft 53 can rotate the pulley 54 (same as the pulley 54a on the vertical frame 3 side) in the winding direction of the belt 56. The pulley 54 can be rotated in the direction in which the belt 56 is fed reversely by pulling down the other hanging portion 72 of 62 manually and rotating the pulley 64 in the R2 direction.
[0026]
The above link lifting mechanism 9 rotates the pulley 54 in the winding direction of the belt 56 by lowering the hanging part 71 of the ball chain 62, thereby lifting the upper end part of the link mechanism 7 via the tilt mechanism 10 and blinding. 5 is arranged in the closed position, and the pulley 54 is rotated in the feeding direction of the belt 56 by lowering the hanging part 72 of the ball chain 62, thereby allowing the upper end part of the link mechanism 7 to be lowered. Thus, the blind 5 is arranged at the opening position.
[0027]
The tilt mechanism 10 is guided by the vertical frame 2 so as to be linearly movable, that is, vertically movable, and the rotation in the R3 direction around the axis 131 is restricted by the vertical frame 2, and on the other hand, Among the link members 31, the uppermost horizontal link member 132 is rotatable in the directions R3 and R4 about the axis 131, and on the other hand, the link lifting mechanism 9 is connected to the linearly movable member 50 described above. The attachment member 133 attached to the uppermost horizontal link member 132, the one end 134 to the aforementioned main body 55 of the linearly movable member 50, and the other end 135 to the uppermost horizontal link member 132 via the attachment member 133. And a coil spring 136 as an elastic member that elastically applies a rotational force in one direction R3 to the uppermost horizontal link member 132, and an opening 16 of the uppermost horizontal link member 132. A reverse forcible rotation mechanism 137 for forcibly rotating the uppermost lateral link member 132 in the reverse direction R4 against the rotational force in the elastic one direction R3 of the coil spring 136. It has.
[0028]
The linearly movable member 50 includes a plate-like main body 55 and two protrusions 138 with a flange 140 that are integrally provided on the main body 55 in the vertical direction. The feeding end of the belt 56 is fixed, and the lower end portion of the main body 55 is rotatable relative to the lateral link member 132 and the mounting member 133 in the R3 and R4 directions around the shaft center 131 by the shaft member 139. In this way, the main body 55 is configured such that on the one hand, the uppermost horizontal link member 132 is rotatable in the R3 and R4 directions, and on the other hand, the link lifting mechanism 9 is connected respectively. The movable member 50 is connected to the uppermost horizontal link member 132 through a shaft member 139 so as to be relatively rotatable in the R3 and R4 directions, and the protrusion 138 is a slit extending in the vertical direction of the vertical frame 2. 17 sliding up and down The main body 55 of the linearly movable member 50 is guided in its vertical movement by the slit 17 and the two protrusions 138 inserted through the slit 17 and is centered on the axis 131. The rotation in the R3 and R4 directions is restricted. The flange 140 of each protrusion 138 prevents the protrusion 138 from coming out of the slit 17.
[0029]
The attachment member 133 is attached to the lateral link member 132 through the shaft pin 26 at one end and the shaft pin 29 at the other end, and R3 and R4 centered on the axis 131 of the lateral link member 132. With the rotation of the direction, the rotation of the coil spring 136 is also performed in the directions of R3 and R4 about the axis 131, and the coil spring 136 is thus attached via the attachment member 133 attached to the uppermost lateral link member 132. The other end 135 is connected to the uppermost lateral link member 132.
[0030]
When a mainspring spring is used as the elastic member instead of the coil spring 136, one end is connected to the uppermost horizontal link member 132 and the other end is connected to the main body 55, and around the axis 131, for example, It may be arranged around the shaft member 139.
[0031]
The reverse forced rotation mechanism 137 includes a cam roller 171 rotatably provided on the uppermost horizontal link member 132 via the shaft pin 26 and a cam roller when the uppermost horizontal link member 132 is raised above the opening 16. A guide cam surface 172 provided on the vertical frame 2 is provided so that the 171 contacts, and the guide cam surface 172 includes an outer surface of a protrusion 173 attached to the vertical frame 2 in this example.
[0032]
2 and 4, when the belt 56 is fed out by lowering the hanging part 72 of the ball chain 62 in the closed state of the opening 16 by the blind 5 shown in FIGS. 2 and 4, the tilt mechanism 10 is lowered by the lowering of the uppermost lateral link member 132. 9, the abutment between the cam roller 171 and the guide cam surface 172 is released, and the uppermost lateral link member 132 is forced by the elastic force of the coil spring 136 in one direction R3. When the belt 56 is wound up by pulling down the hanging part 71 of the ball chain 62 in the open state of the opening 16 by the blind 5 shown in FIG. The uppermost lateral link member resists the rotational force in the elastic one direction R3 of the coil spring 136 by the guide contact with the guide cam surface 172 based on the contact with 173. 32 is caused to rotate in the reverse direction R4, so that each of the slats 4 is linked to the state shown in FIG. 8 from the state shown in FIG. 11 through the state shown in FIG. Or from the state shown in FIG. 8 to the state shown in FIGS. 2 and 4.
[0033]
As described above, the blind 5 including the plurality of slats 4 juxtaposed in the vertical direction between the pair of vertical frames 2 and 3 and the respective end portions 6 of the slats 4 are supported. A foldable link mechanism 7 disposed on each of the two, a metal belt 56 as a flexible long body having one end connected to the upper end of the link mechanism 7, and the other end of the belt 56. The blind device 1 including a pulley 54 as a rotating body that is coupled and rotates to wind up and feed out the belt 56 and a ball chain 62 as a string-like body that rotates the pulley 54 is provided with a window frame 81. The door chain 82 is attached to a building housing 85 of a detached house or an apartment house by a known means, and the ball chain 62 passes through a portion of the window frame 81 attached to the building housing 85. Inside the window 82 It has been lowered dripping to 86.
[0034]
In this example, the window frame 81 is integrally formed on the upper frame 91, the shoji rail 92 integrally formed on the lower surface of the upper frame 91, and the lower frame, a pair of vertical frames, and the upper surface of the lower frame, although not shown. The upper frame 91 is fixed to the building frame 85, and the lower frame and the pair of vertical frames are also fixed to the building frame 85 in the same manner. A shoji 93 made of window glass is movably fitted between the shoji rails of the frame.
[0035]
Through holes 94 and 95 are formed in the upper frame 91, and a flexible guide cylinder 96 is attached to the upper frame 91 through the through holes 94 and 95. It has a pair of guide passages 97 and 98 that are separated from each other and juxtaposed in the vertical direction, the inner peripheral surface of the guide tube 96 is covered with a sliding material, and the ball chain 62 has a portion of the upper frame 91. Through the through holes 94 and 95, more specifically through the guide passages 97 and 98 in the guide tube 96 disposed in the through holes 94 and 95 in this example, respectively. It hangs down on the indoor side 86 of 82.
[0036]
A guide member 99 for guiding the hanging of the ball chain 62 is attached to the upper frame 91, and the guide member 99 is a pair of guide passages curved corresponding to the pair of guide passages 97 and 98 of the guide tube 96. The ball chain 62 is guided downward through a pair of guide passages 100 and 101.
[0037]
In the blind device 1, the longitudinal link rows 27 and 30 are folded at the opening of the opening 16, and each of the slats 4 is closely polymerized (bundled) below the opening 16 as shown in FIG. 11. Have been).
[0038]
When closing the opening 16 in the blind device 1, first, the hanging part 71 of the ball chain 62 is pulled down to rotate the pulley 64 in the R <b> 1 direction, and the pulley via the shaft 63, the deceleration / braking mechanism 65 and the rotating shaft 53. 54 is rotated, whereby the belt 56 is wound around the pulley 54 and the uppermost lateral link member 132 is raised. As the horizontal link member 132 is raised, the vertical link rows 27 and 30 are also extended from the upper end side, and the horizontal link member 31 of the horizontal link row 32 is also lifted upward from the upper side. Each of the slats 4 fixed to the including lateral link member 31 is sequentially lifted in the closing direction of the opening 16. As shown in FIG. 9, when the cam roller 171 is located at a position where it does not contact the protrusion 173, the vertical link rows 27 and 30 and the horizontal link rows 27 and 30 are arranged so that the slat 4 is held in a substantially horizontal tilted state. A link row 32 and the like are formed.
[0039]
Further, the vertical link rows 27 and 30 are extended by the belt 56 being wound around the pulley 54, and shown in FIG. 6 at the halfway closing position of the opening 16 of the blind 5, in this example, the position immediately before the opening 16 is completely closed. Thus, when the cam roller 171 comes into contact with the protrusion 173 and starts to be guided to the guide cam surface 172, the vertical link row 30 is lifted more than the vertical link row 27 by the rotation of the uppermost horizontal link member 132 in the R4 direction. As a result, the slats 4 are rotated as shown in FIG. 8, and are sequentially set in a vertically inclined state. Further, by rotating the uppermost horizontal link member 132 in the R4 direction and lifting the vertical link row 30, the slats 4 are held in a substantially vertical tilted state as shown in FIG. 4, and the opening 16 is completely blinded. In this state, the blind 5 is fully closed (completely closed). Thereafter, the rotation of the pulley 54 by the lowering of the ball chain 62 is stopped, and the closing operation of the opening 16 by the blind 5 is completed.
[0040]
In the opening of the opening 16 by the blind 5, when the hanging part 72 of the ball chain 62 is pulled down and the pulley 64 is rotated in the R2 direction, the pulley 54 is rotated reversely to the above by the assistance of this rotation and the weight of the slat 4 and the like. Thus, as shown in FIGS. 4, 8, 10 and 11, the vertical link rows 27 and 30 are operated in this order.
[0041]
According to the structure of the blind device 1 and the window frame 81 described above, by manually operating the ball chain 62, the pulley 54 is rotated to wind the belt 56, and the belt 56 is wound. The upper frame 91 is a part of the window frame 81 in which the ball chain 62 is attached to the building frame 85. And the opening 16 can be opened and closed by the blind 5 without opening and closing the shoji 93 installed in the window frame 81. By using only the window frame 81 in which 94 and 95 are formed, the building can be installed without any additional work on the building housing 85.
[0042]
Further, according to the blind device 1 of the present example, each of the slats 4 is tilted by the tilt mechanism 10 so that the complete closing of the opening 16 and the closed closing of the opening 16 can be selectively performed. Further, since the tilt mechanism 10 is provided with a coil spring 136 which gives the uppermost lateral link member 132 elastically rotating force in one direction R3, the uppermost lateral link member is driven by the reverse forced rotation mechanism 137. When the uppermost lateral link member 132 is lowered so as to shift the blind 5 to the open position again after the 132 is forcibly rotated in the reverse direction R4, the uppermost lateral link member 132 is moved to the coil spring. As a result of being able to forcibly rotate in one direction R3 by the elastic turning force of 136, the transition to the horizontal state of the slat 4 can be performed at low cost and with high reliability. .
[0043]
In the structure of the blind device 1 and the window frame 81 described above, a guide cylinder 96 having a pair of guide passages 97 and 98 juxtaposed in the vertical direction is attached to the upper frame 91. As shown, a through hole 104 is formed in a shoji rail 92 integrally formed on the lower surface of the upper frame 91, and a guide cylinder 106 having a pair of guide passages 105 juxtaposed in the horizontal direction is passed through the through hole 104. The ball chain 62 may be mounted on the shoji rail 92 and disposed in the guide passage 105, and the ball chain 62 may be hung down the indoor side 86 of the window 82 through the portion of the shoji rail 92. In the example shown in FIG. 12, the guide member 99 may have a pair of guide passages 107 arranged in parallel in the horizontal direction corresponding to the pair of guide passages 105 of the guide tube 106.
[0044]
Further, in order to prevent the ball chain 62 from being detached from the pulley 64, a detachment preventing member 108 may be provided so as to surround the pulley 64 as shown in FIG.
[0045]
Further, in the blind device 1 described above, the rotary drive device 57 provided with the speed reduction / braking mechanism 65 is used. The ratchet is applied to the blind shaft 5 and the link mechanism 7 or the like so that the rotating shaft 53 is not rotated, and when the other hanging portion 72 of the ball chain 62 is lowered, the rotating shaft 53 or the shaft 63 is also ratcheted. While preventing the rotation shaft 53 from rotating, the continuous lowering of one hanging part 71 of the ball chain 62 releases the ratchet so that the rotation shaft 53 can be rotated in the R1 direction. The ratchet is released by a small amount of temporary lowering of one hanging part 71 of the ball chain 62. Rotating shaft 53 is rotatable, it may be used rotary drive 57 for rotating shaft 53 is equipped with a moderator ratchet mechanism so as to be rotated in the R2 direction by its own weight, such as blind 5 and a link mechanism 7.
[0046]
【Effect of the invention】
ADVANTAGE OF THE INVENTION According to this invention, the structure of the blind apparatus and window frame which can open and close the opening part by a blind, without opening and closing a shoji, and can be installed, without adding an additional hand to a building frame Can be provided.
[Brief description of the drawings]
FIG. 1 is an overall perspective view of an example of a preferred embodiment of the present invention.
FIG. 2 is a partial vertical cross-sectional explanatory diagram on one vertical frame side of the example shown in FIG. 1;
3 is a cross-sectional explanatory diagram of the example shown in FIG.
4 is a partial explanatory view on one vertical frame side shown in FIG. 1. FIG.
FIG. 5 is a detailed explanatory diagram in one vertical frame of the example shown in FIG. 1;
6 is a partially enlarged explanatory view of FIG. 5;
7 is a cross-sectional explanatory view of one vertical frame of the example shown in FIG. 1;
8 is an operation explanatory diagram of the example shown in FIG. 1. FIG.
FIG. 9 is an operation explanatory diagram of the example shown in FIG. 1;
10 is an operation explanatory diagram of the example shown in FIG. 1. FIG.
FIG. 11 is an operation explanatory diagram of the example shown in FIG. 1;
FIG. 12 is an explanatory diagram of another example of a preferred embodiment of the present invention.
[Explanation of symbols]
1 Blind device
2, 3 vertical frame
4 Slats
5 Blind
6 edge
7 Link mechanism
54 pulley
56 belts
62 Ball chain
81 Window frame
82 windows
83 outdoor
85 building frame
86 Indoor side

Claims (10)

A blind composed of a plurality of slats juxtaposed in the vertical direction between a pair of vertical frames, supports each end of each slat, a foldable link mechanism arranged in each vertical frame, and one end A flexible long body connected to the upper end of the link mechanism, the other end of the long body is connected, the long body is wound by rotation, and the rotary body that is fed out and rotated. A blind device having a string-like body to be provided is provided outside the window of the building frame, and the string-like body is hung down to the indoor side of the window through a portion of the window frame attached to the building frame. The window frame includes an upper frame and a shoji rail integrally formed on the lower surface of the upper frame, and the string-like body is formed between the blind device passing through the portion of the shoji rail and the window frame. Construction.   2. The blind device according to claim 1, wherein the window frame has a through-hole or a recess, and the string-like body hangs down to the indoor side of the window through the through-hole or the recess. Construction.   The structure of the blind device and the window frame according to claim 1 or 2, wherein a guide tube is attached to the window frame, and the string-like body passes through the guide tube.   The structure of the blind device and the window frame according to claim 3, wherein the guide cylinder has a pair of guide passages separated from each other inside, and the string-like body passes through each of the pair of guide passages. .   The structure of the blind device and the window frame according to claim 4, wherein the pair of guide passages are juxtaposed in the vertical direction or the horizontal direction.   The structure of the blind device and the window frame according to any one of claims 3 to 5, wherein the guide tube has flexibility.   The structure of the blind device and the window frame according to any one of claims 3 to 6, wherein an inner peripheral surface of the guide tube is covered with a sliding material.   The structure of the blind device and the window frame according to any one of claims 1 to 7, wherein the string-like body is a ball chain, a string, a wire, or a belt. The structure of the blind device and the window frame according to any one of claims 1 to 8, wherein a guide member that guides the hanging of the string-like body is attached to the window frame. A window frame for use in the structure of the blind device according to any one of claims 1 to 9 and a window frame, comprising an upper frame and a shoji rail integrally formed on a lower surface of the upper frame. A window frame formed by forming a through hole or a recess in the shoji rail through which the string-like body passes.

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