JP6402608B2 - Opening / closing device - Google Patents

Description

  The present invention relates to an opening / closing device such as a blind device or a shutter device that is disposed in an opening such as a window or an entrance of a building and used to open and close the opening.

  For example, as described in Patent Document 1, a blind device includes a frame body arranged in an opening portion of a building such as a window, a plurality of blades juxtaposed with each other in an opening portion surrounded by the frame body, A suspension mechanism that suspends the uppermost blade of the plurality of blades, a link mechanism that connects the plurality of blades to each other and is foldable, and lifts from the lowest blade of the plurality of blades. An elevating mechanism that lowers the lower blades and raises and lowers the plurality of blades.

Table 2011 / No. 099078 JP 2011-132806 A

  By the way, in such a blind device, the lifting and lowering of the plurality of blades in opening and closing the opening is automatically performed by an electric motor. Instead of the electric motor, a pulley is fixed to the rotating shaft, and a string or ball is attached to the pulley. When the chain is hung and the blades are moved up and down manually by a string or ball chain, and the opening closed by multiple blades is raised in advance from the lowest blade to open the opening. Alternatively, in any case where the opened opening is lifted in advance from the uppermost blade to close the opening, the number of blades to be raised increases as the degree of opening or the degree of closure increases. As a result, it is necessary to gradually apply a large ascending force to the lowermost or uppermost blade according to the increasing number of blades. As a result, it is difficult to operate the string or ball chain, and it is difficult to operate the string or ball chain. It is difficult to perform an automatic opening / closing operation by a plurality of blades by an opening / closing operation, for example, an instantaneous manual operation of a string or a ball chain by an operator.

  Such a problem is not limited to the blind device. In a shutter device that uses a string or a ball chain, the shutter device that does not use a string or a ball chain, or a shutter device that does not use a string or a ball chain, manually This can also occur in a shutter device in which the lower blades are moved up and down to open and close the opening.

  The present invention has been made in view of the above-described points. The object of the present invention is to make it possible to eliminate the difficulty of manual operation by the operator, and to perform specific manual operation by the operator. Then, it is providing the opening part opening / closing apparatus which can also be set as the structure which can perform the specific opening / closing operation | movement with respect to the opening part by several blade | wings.

  The opening / closing device of the present invention includes a frame body having first and second vertical frames juxtaposed to each other and a horizontal frame bridging the first and second vertical frames, and first and second A plurality of blades juxtaposed in the vertical direction in the openings defined by the vertical frame and the horizontal frame, and a coupling mechanism that connects the blades adjacent in the vertical direction among the plurality of blades so as to be close to and away from each other; A reaction force generating mechanism that generates a reaction force that increases and decreases according to the increase and decrease of the number of blades that are raised and lowered in the opening and that has a direction opposite to the direction of the blade load in the opening. The opening is opened and closed by the lowering and raising of the uppermost blade in the vertical direction or the raising and lowering of the lowermost blade, and the reaction force generation mechanism is at the first vertical frame side at one end. The highest or lowest blade of a plurality of blades A flexible first elongated body that is connected and can be moved up and down in the second vertical frame at the other end, and movably passed through the horizontal frame, and at one end The second vertical frame side is connected to the uppermost or lowermost blades of the plurality of blades, and the other end is movable up and down in the first vertical frame, and passes through the horizontal frame. A flexible second elongate body that is movably arranged and a guide mechanism that guides the running of the first and second elongate bodies. The rising force is generated and increased by the reaction force generating mechanism based on the weight of the increased portion of the first and second elongate bodies in each of the first and second vertical frames. Is to be done by.

  According to the opening / closing device of the present invention, the first and second vertical frames are provided with the reaction force generation mechanism, and the uppermost and lowermost blades are raised in the first and second vertical frames, respectively. Since the reaction force is generated by the reaction force generation mechanism based on the weight of the portion of the second elongated body that increases and the reaction force increases, it is difficult for the operator to manually operate the reaction force. In addition to eliminating this problem, by setting a desired increase rate of the reaction force, it is possible to perform a specific opening / closing operation on the openings by the plurality of blades by a specific manual operation by the operator.

  For example, the opening closed by a plurality of blades is raised in advance from the lowest blade, and the upper blades are stacked one after another on the lowest blade so that the opening is opened. When configured or when the opened opening is raised in advance from the uppermost blade and the lower blades are lifted one after another by the uppermost blade and lifted, thereby closing the opening In any case, the increase rate of the reaction force generated by such a reaction force generation mechanism is configured to be equal to the increase rate of the weight of the blade to be raised and the member to be raised accompanying the blade to be raised. Thus, even if the number of blades to be raised in opening and closing the opening increases, the opening can be opened and closed with a substantially constant manual operation force without increasing the manual operation force of the operator. The difficulty of The rate of increase in the reaction force generated by the reaction force generation mechanism is set to be larger than the rate of increase in the weight of the blade to be raised and the member to be raised accompanying the blade to be raised. By doing so, the opening closed by the plurality of blades is raised in advance from the lowest blade, and the upper blades are stacked one after another on the lowest blade, thereby opening the opening. In this configuration, when an instantaneous operating force is applied to the lowest blade from the outside in order to open the opening in the closed state of the opening, the blades are automatically and successively from the lowest blade. On the other hand, the opened opening is raised in advance from the uppermost blade, and the lower blades are lifted one after another by the uppermost blade, and thereby the opening is closed. Configured as In this case, when an instantaneous operating force is applied to the uppermost blade from the outside in order to close the opening in the open state of the opening, the blades can be automatically raised from the uppermost blade one after another. In any case, it is possible to automatically open and close the opening regardless of manual operation, and thus by a specific manual operation by the operator, a plurality of blades can be used. A specific opening / closing operation with respect to the opening can be performed.

  In a preferred example of the present invention, the first elongate body is attached to a flexible first elongate body main body and a portion that moves up and down within the second vertical frame of the first elongate body main body. And a second elongated body having a flexible second elongated body main body and a first vertical frame of the second elongated body main body. In this case, each of the first and second elongated body bodies may be provided with a chain or a no-back chain. In addition, each of the first and second weight rows may include a plurality of weights rotatably attached to the chain or the no-back chain, and the plurality of weights are identical to each other. May have different masses, but may have different masses, and use a plurality of weights having different masses. In this case, in the weight row composed of a plurality of weights connected to each other, the weights are arranged so that the mass sequentially increases from the other end side to the one end side in each of the first and second elongated bodies. You may do it.

  The guide mechanism includes a first turning rotary body that guides the mutual travel between the first vertical frame and the horizontal frame of the first long body, and the second vertical frame and the horizontal frame of the first long body. And a second turning rotating body for guiding the mutual traveling between them, and a third for guiding the mutual traveling between the first vertical frame and the horizontal frame of the second elongated body. And a fourth turning rotator for guiding the mutual travel between the second vertical frame and the horizontal frame of the second elongate body. The second turning rotator and the third and fourth turning rotators may be simple pulleys (pulleys) when the first and second elongated bodies are belts, wires, or the like. If the second elongated body is a chain such as a chain or no-back chain or a toothed belt (timing belt), it may be a sprocket wheel or a toothed pulley. .

  In the present invention, a traveling mechanism that travels the first and second elongated bodies to open and close the opening by a plurality of blades by lowering and raising the uppermost blade or raising and lowering the lowermost blade. The traveling mechanism may further include an engaging rotating body that engages with the first and second elongated bodies to cause the first and second elongated bodies to travel synchronously. In this case, when the first and second elongated bodies are a chain such as a chain or a no-back chain or a toothed belt (timing belt), It should be a toothed pulley.

  In the opening / closing apparatus of the present invention, the uppermost blade is fixed to the first and second vertical frames, and the remaining blades other than the uppermost blade among the plurality of blades are freely raised and lowered. The lowermost blade may be connected to one end of the first and second elongate bodies and be movable up and down, and the opening / closing device of such an example is provided with the lowermost blade in the opening. The lowermost blade may be lowered first to close the opening, while the opening of the present invention is replaced. In the part opening and closing device, the uppermost blade may be connected to one end of the first and second elongated bodies and be movable up and down. The opening and closing device of such an example is the uppermost blade in the opening. Open the opening by lowering the leading blade first, while leading the top blade. May be configured to close the opening, and in this case, the plurality of blades may be movable up and down, but instead, the lowest blades are the first and second blades. The remaining blades that are fixed to the second vertical frame and excluding the lowest blade among the plurality of blades may be movable up and down.

  The opening / closing device of the present invention may further include a tilting mechanism that tilts the plurality of blades. When the tilting mechanism is provided, the plurality of blades are tilted to open the plurality of blades. Complete closure of the part, i.e. closure of the opening that does not create a gap between each of the plurality of blades, and interdigital closure, i.e. closure of the opening that creates a gap between each of the plurality of blades. Can be selectively performed.

  The opening / closing device of the present invention is a shutter device or a blind device. In the case of a shutter device, it is preferably arranged at the entrance of a building or the like, and in the case of a blind device, it is preferably arranged at a building window or the like.

  According to the present invention, it is possible to eliminate the difficulty of manual operation by an operator, and it is possible to perform a specific opening / closing operation of an opening by a plurality of blades by a specific manual operation by an operator. It is possible to provide an opening / closing device that can be configured to be able to perform.

FIG. 1 is a perspective explanatory view of an example of a preferred embodiment of the present invention. FIG. 2 is an explanatory plan view of one vertical frame side of the example shown in FIG. FIG. 3 is an explanatory side sectional view of one vertical frame side of the example shown in FIG. FIG. 4 is an explanatory front sectional view of one vertical frame side of the example shown in FIG. FIG. 5 is an explanatory plan view of the other vertical frame side of the example shown in FIG. FIG. 6 is an explanatory side sectional view of the other vertical frame side of the example shown in FIG. FIG. 7 is an explanatory front sectional view of the other vertical frame side in the example shown in FIG. 1. FIG. 8 is a diagram for explaining the operation of the example shown in FIG. FIG. 9 is an operation explanatory diagram of the example shown in FIG. FIG. 10 is an operation explanatory diagram of the example shown in FIG. FIG. 11 is an operation explanatory diagram of the example shown in FIG.

  Next, embodiments of the present invention will be described in more detail based on preferred examples shown in the drawings. The present invention is not limited to these examples.

  1 to 7, a blind device 1 as an opening and closing device of this example includes a hollow vertical frame 2 and 3 and a vertical frame 2 and 3 that are arranged in a building window and juxtaposed with each other. A hollow upper frame 4 as a horizontal frame, a hollow lower frame 5 bridging the vertical frames 2 and 3 like the upper frame 4, and a cover plate 6 with the upper openings of the vertical frames 2 and 3 and the upper frame 4 closed. The frame body 7 with the vertical frame 2 and 3 and the opening 8 defined by the upper frame 4 and the lower frame 5 are juxtaposed in the vertical direction V, and the opening 8 is opened and closed by raising and lowering the opening 8. A plurality of blades 9, a link mechanism 10 as a connecting mechanism for connecting the blades 9 adjacent to each other in the vertical direction V among the plurality of blades 9 so as to be close to and away from each other, and a blade 9 moved up and down in the opening 8. The number of blades 9 in the opening 8 A reaction force generation mechanism 11 that generates a reaction force F having a direction (upward direction) V2 opposite to the direction of gravity (gravity applied to the blades 9) G (downward direction: gravity direction) V1; In the up-down direction V, the traveling mechanism 14 that travels the flexible elongated bodies 12 and 13 of the reaction force generation mechanism 11 to open and close the opening 8 by the plurality of blades 9 by raising and lowering the lowest blade 9. And a tilting mechanism 15 for tilting the plurality of blades 9, and by moving the lowermost blade 9 up and down, the blade 9 between the uppermost blade 9 and the lowermost blade 9 is moved up and down to open the opening 8. It opens and closes.

  Each of the vertical frames 2 and 3 bridges the outer side wall portion 21 that defines the hollow portion 20, the inner side wall portion 22 that faces the outer side wall portion 21, and the outer side wall portion 21 and the inner side wall portion 22. The outer side wall portion 21 is integrally formed with the side wall plate portion 25 and the side wall plate portion 25 extending in the vertical direction V. The front side wall portion 23 and the rear wall portion 24 are arranged so as to face each other. A guide wall portion 27 that is formed and cooperates with the rear wall portion 24 to define the guide passage 26, and extends in the vertical direction V and is integrally formed with the side wall plate portion 25 and cooperates with each other to guide the guide passage 26. And a side wall plate having a slit 30 extending in the vertical direction V and an opening 31 through which the elongate bodies 12 and 13 pass. Part 32 and extending in the vertical direction V and integrated with the side wall plate part 32 And a guide wall portion 34 that defines a guide passage 33 in cooperation with the rear wall portion 24. The rear wall portion 24 is integrated with the rear wall plate portion 35 and the rear wall plate portion 35. Arc guide walls 36 and 37 are formed, and the guide passage 26 and the guide wall 27 are arranged in the horizontal direction (lateral direction) H perpendicular to the vertical direction V. Confronts 34.

  The upper frame 4 faces the rear wall portion 41 and the rear wall portion 41 that define the hollow portions 40 that communicate with the hollow portions 20 of the vertical frames 2 and 3 through the respective openings 31 at both ends in the horizontal direction H. The front wall portion 42, the rear wall portion 41, and the bottom wall portion 43 that bridges the front wall portion 42 are integrally formed. The rear wall portion 41 extends in the horizontal direction H with the rear wall plate portion 44. And a pair of guide wall portions 46 that cooperate with each other to define the guide passage 45 and extend in the horizontal direction H and are integrally formed with the rear wall plate portion 44. A guide wall portion 48 that defines a guide passage 47 in cooperation with the bottom wall portion 43 is provided, and one of the pair of guide wall portions 46 has a guide wall of the rear wall portion 24 of the vertical frame 3 at one end thereof. The guide wall portion 48 is connected to one end of the guide wall portion 37 of the rear wall portion 24 of the vertical frame 2 at one end thereof. .

  Each of the blades 9 extends in the horizontal direction H and is long and has an arcuate plate surface having an arcuate convex surface and an arcuate concave back surface, and a half formed integrally with the front and rear edges of the arcuate plate unit 50. A link mechanism that connects a blade body 54 having a pair of claw portions 53 formed integrally with the cylindrical concave portions 51 and 52 and the circular arc concave back surface of the circular arc plate portion 50 and each end portion 55 in the longitudinal direction of the circular arc plate portion 50. 10, and each of the attachments 56 is attached to one end 55 of the corresponding arcuate plate 50 through a claw 53 and fixed at one end. A shaft member 58 fixed to the plate portion 57 and passed through the slit 30, and a fitting member 59 through which the shaft member 58 passes rotatably and fitted to the side wall plate portion 32 in the slit 30 are provided. Of the fitting member 59 and the uppermost vertical The joint member 59 is fitted and fixed to the side wall plate portion 32 in the slit 30 so as not to move in the vertical direction V, while the other fitting members 59 except for the uppermost fitting member 59 are arranged in the vertical direction V. The slit 30 is fitted to the side wall plate portion 32 so as to be slidable in the vertical direction V. Therefore, the uppermost blade 9 is fitted and fixed to the side wall plate portion 32. The fitting member 59 is suspended through a shaft member 58 and fixed to the vertical frames 2 and 3 so as to be tiltable (rotatable in the direction R about the shaft member 58). The remaining blades 9 excluding the uppermost blade 9 are rotatable in the direction R about the shaft member 58 and can be moved up and down in the vertical direction V.

  The link mechanisms 10 arranged in the hollow portions 20 of the vertical frames 2 and 3 are connected to each other through the shaft member 70 so as to be rotatable in the direction r about the shaft member 70 and are foldable. A row of leading edge link members 71, a row of a plurality of trailing edge link members 73 that are connected to each other in a direction r about the shaft member 72 via the shaft member 72 and are foldable; And the lowermost front edge link member 71 and the rear edge link member 73, and every other front edge link member 71 and the rear edge link member 73 that follow the shaft members 70 and 72 via the shaft members 70 and 72, respectively. A row of horizontal members 74 that are rotatably connected in the direction r as the center and the other end of the shaft member 58 is fixed to the substantially central portion, and are connected to each other via shaft members 70 and 72. Multiple leading edge phosphorus In order to determine the folding direction of each of the member 71 and the rear edge link member 73, the front edge link member 71 and the rear edge link member 73 are alternately formed with the bent portions 75 formed integrally with each other. Yes.

  The leading edge link member 71 and the trailing edge link member 73 are arranged such that when the lowermost horizontal member 74 is raised, the corresponding shaft members 70 and 72 approach each other except for the shaft members 70 and 72 in each horizontal member 74. The folded front edge link member 71 and the rear edge link member 73 are separated from each other in the horizontal direction H and overlap each other. When the lower horizontal member 74 is lowered, the corresponding shaft members 70 and 72 are separated from each other except for the shaft members 70 and 72 in each horizontal member 74, and the leading edge link member 71 and the trailing edge link member 73 are separated from each other. Thus, each of the link mechanisms 10 allows the blades 9 adjacent to each other in the vertical direction V among the plurality of blades 9 to approach and separate from each other in the vertical direction V. It is binding.

  The reaction force generation mechanism 11 is connected to the lowest blade 9 of the plurality of blades 9 on the vertical frame 2 side at one end 80 via a connection mechanism 81 and at the other end 82 in the vertical frame 3, that is, In the hollow portion 20 of the vertical frame 3, it can be moved up and down in the vertical direction V, and can travel in the vertical direction V and the horizontal direction H in the upper frame 4, that is, through the hollow portion 40 of the upper frame 4. The long member 12 is arranged so as to be able to run in the direction B opposite to the direction A and the direction A, and the connecting mechanism 84 is connected to the lowest blade 9 of the plurality of blades 9 on the vertical frame 3 side at one end 83. And the other end 85 is movable up and down in the vertical direction V in the vertical frame 2, that is, in the hollow portion 20 of the vertical frame 2, and in the upper frame 4, that is, the upper frame 4. Can travel in the vertical direction V and the horizontal direction H through the hollow portion 40, that is, in direction C and direction C. Thus, the long body 13 arranged to run freely in the opposite direction D, and the long bodies 12 and 13 travel in the vertical direction V and the horizontal direction H, that is, the long body 12 travels in the directions A and B. And guide mechanisms 86 and 87 for guiding the long body 13 in the directions C and D, respectively.

  The long body 12 includes a long body main body 92 having a no-back chain 91 that can be bent (bent) in only one direction, and a no-back chain 91 that moves up and down in the hollow portion 20 of the vertical frame 3 of the no-back chain 91. The long body 13 is provided with a no-back chain 94 that can be bent (bent) in only one direction, like the no-back chain 91, with the weight row 93 attached to the portion including the other end 82 that is also the end. A scale body 95 and a weight row 96 attached to a portion including the other end 85 which is also the other end of the no-back chain 94 that moves up and down in the hollow portion 20 of the vertical frame 2 of the no-back chain 94 are provided. Each of the weight rows 93 and 96 is a roller made of a metal having a large mass and is rotatably attached to both ends of the pins of the no-back chains 91 and 94, respectively. In the hollow portion 40 of the upper frame 4, the lower guide wall of the pair of guide wall portions 46 is used for the travel of the weight row 93 accompanying the travel of the no-back chain 91. In the hollow portion 20 of the vertical frame 3, the rear wall portion 24 in the vertical frame 3 and the rear wall portion 24 are guided by a pair of guide wall portions 46 with rotational contact of the weight 97 to the portion 46. The guide wall portions 27 and 34 are guided by the fluctuation regulation in the front-rear direction, and the weight row 96 travels as the no-back chain 94 travels to the bottom wall portion 43 in the hollow portion 40 of the upper frame 4. In the hollow portion 20 of the vertical frame 2, the rear wall portion 24 in the vertical frame 2 is guided by the fluctuation control in the vertical direction V by the bottom wall portion 43 and the guide wall portion 48 accompanied by the rotational contact of the weight 97. And fluctuations in the front-rear direction by the guide walls 27 and 34 Is carried out is guided with.

  On the one hand, the connection mechanism 81 is rotatably connected to one end 80 which is also one end of the no-back chain 91, and on the other hand, in addition to the shaft member 58 of the fixture 56 on the vertical frame 2 side of the lowest blade 9. A connecting plate 100 rotatably connected to the end; and a pair of rollers 101 rotatably attached to the connecting plate 100 and spaced apart in the vertical direction V in the guide passage 28 of the vertical frame 2. On the one hand, the connecting mechanism 84 similar to the connecting mechanism 81 is rotatably connected to one end 83 which is also one end of the no-back chain 94, and on the other hand, the vertical frame 3 side of the lowest blade 9. The connecting plate 102 is rotatably connected to the other end of the shaft member 58 of the fixture 56, and is rotatably attached to the connecting plate 102 and is spaced apart in the vertical direction V from the guide passage 28 of the vertical frame 3. A pair of arranged Therefore, the lowest blade 9 is connected to the ends 80 and 83 of the no-back chains 91 and 94 via the connecting mechanisms 81 and 84, that is, the long bodies 12 and 13. Connected to one end 80 and 83.

  The guide mechanism 86 includes a sprocket wheel 111 as a turning rotating body that guides the vertical movement V and the horizontal direction H between the vertical frame 2 and the upper frame 4 of the long body 12, and the vertical frame of the long body 12. 3 and the upper frame 4, and a sprocket wheel 112 as a turning rotator for guiding the mutual traveling in the vertical direction V and the horizontal direction H, and the sprocket wheel 111 meshing with the no-back chain 91 is a vertical frame. The sprocket wheel 112, which is rotatably attached to the rear wall portion 24 via the shaft member 113 and also meshes with the no-back chain 91 and has a diameter larger than that of the sprocket wheel 111, is the rear wall portion of the vertical frame 3. 24 is rotatably mounted via a shaft member 114, and the mesh of the no-back chain 91 with the sprocket wheel 111 is Is secured by the guide wall portion 36 of the vertical frame 2 that guides the mutual travel of the no-back chain 91 in the vertical direction V and the horizontal direction H in cooperation with the rail 111. The mesh of the no-back chain 91 cooperates with the sprocket wheel 112 to guide the mutual travel of the no-back chain 91 in the vertical direction V and the horizontal direction H through the guide to the weight row 93. 3 guide wall portions 36 are secured.

  The guide mechanism 87 includes a sprocket wheel 121 as a turning rotator for guiding the vertical movement V and horizontal direction H between the vertical frame 2 and the upper frame 4 of the long body 13, and the vertical frame of the long body 13. 3 and the upper frame 4, and a sprocket wheel 122 as a turning rotator that guides the mutual traveling in the vertical direction V and the horizontal direction H between the upper frame 4 and the upper frame 4. The sprocket wheel 122 which is rotatably attached to the rear wall portion 24 via the shaft member 123 and is also meshed with the no-back chain 94 and smaller in diameter than the sprocket wheel 121 is the rear wall portion 24 of the vertical frame 3. The sprocket wheel 121 meshes with the sprocket wheel 121 so that the no-back chain 94 is engaged with the sprocket wheel. The guide wall portion 37 of the vertical frame 2 that guides the traveling of the no-back chain 94 in the vertical direction V and the horizontal direction H through the guide to the weight row 96 in cooperation with the control rail 121 is secured. The engagement of the no-back chain 94 with the sprocket wheel 122 is a vertical frame that cooperates with the sprocket wheel 122 to guide the vertical movement V and the horizontal direction H of the no-back chain 94. 3 guide wall portions 37 are secured.

  The travel mechanism 14 leans against the shaft member 131 rotatably supported by the rear wall portion 41 and the front wall portion 42 of the upper frame 4, a ball chain wheel 132 fixed to the shaft member 131, and the wheel 132. And an endless ball chain 133 that can be manually driven while hanging down on the indoor side of the building, and the no-back chains 91 and 94 of the long bodies 12 and 13 fixed to the shaft member 131, respectively. A sprocket wheel 134 as an engaging rotating body that meshes and engages, and a known ratchet mechanism (not shown) that temporarily prohibits the travel of the ball chain 133 by manual operation with respect to the ball chain 133. When the sprocket wheel 134 is rotated through the wheel 132 by manual operation on the chain 133, the no-back chain 91 And it is adapted to travel in the direction A and C or the direction B and D in synchronization beauty 94.

  The tilting mechanism 15 is supported by the support member 141 through the support member 141 attached to the front wall portion 42 of the upper frame 4 and the pair of flange portions 142 of the support member 141 movably in the vertical direction V. A rod 143; an engagement member 145 attached to the upper end of the operation rod 143 and having a slit 144; and passing through the slit 144 of the engagement member 145 and in the semi-cylindrical portion 52 of the uppermost blade 9 The operation bar 143 is releasably locked at an appropriate position in the vertical direction V with the round bar 146 inserted into the semi-cylindrical portion 52 and fixed to the semi-cylindrical portion 52, the operation knob 147 attached to the lower end of the operation bar 143 The operating rod 1 is configured so that the locking mechanism 148 and the operating rod 143 are moved up and down in the up-and-down direction V so as to come into contact with each of the pair of flanges 142 and limit the up-and-down movable range of the operating rod 143 in the up-and-down direction V. 3 is provided with stop plates 149 and 150, and a locking mechanism 148 includes a plurality of arc projections 151 provided in a line in the vertical direction V on the operation rod 143, and a support member 141. And a leaf spring 152 that is elastically engaged with any one of the recesses between the arc projections 151 by the movement of the support member 141 in the vertical direction V.

  In the above blind device 1, as shown in FIGS. 1, 3, 6, and 8, a plurality of blades 9 are arranged over the entire opening 8 so as to close the opening 8, and each blade body 54. Is tilted so as to be directed substantially in the horizontal direction H, the ball chain 133 is manually operated for traveling in one direction, and the sprocket wheel 134 is rotated via the wheel 132 and the shaft member 131. When the no-back chain 91 travels in the direction A and the no-back chain 94 travels in the direction C, the sprocket wheels 111 and 112 and 121 and 122 rotate in the directions A and C in the no-back chains 91 and 94, respectively. The connecting plates 100 and 102 connected to the one ends 80 and 83 of the no-back chains 91 and 94 are also part of the guide passage 28. The lowest blade 9 connected to the connecting plates 100 and 102 with the aid of the guide movement of the rollers 101 and 103 is also adjacent to the lowest blade 9 and the lowest blade 9 above. The lowermost of the fitting member 59 of the lowest blade 9 is raised with the folding of the front edge link member 71 and the rear edge link member 73 between the lower blade 9 and the lowermost blade 9 rising. The blade 9 adjacent to the lowermost blade 9 is also raised in the vertical direction V due to the collision of the blade 9 adjacent to the upper blade 9 with the fitting member 59, and hereinafter, the ball chain 133 is further moved in one direction. In the above-described manual travel, the blades 9 positioned above the blade 9 adjacent above the lowest blade 9 are similarly raised in the vertical direction V one after another, and the number (number) of the raised blades 9 is increased. While increasing, no back cha The other ends 82 and 85 of 91 and 94 are respectively lowered in the hollow portion 20 of the vertical frame 3 and the hollow portion 20 of the vertical frame 2, and this lowering continues to the other ends 82 and 85 and the other ends 82 and 85. The respective weights 97 of the weight rows 93 and 96 attached to the no-back chains 91 and 94 are also lowered in the hollow portion 20 of the vertical frame 3 and the hollow portion 20 of the vertical frame 2, respectively. In addition, the respective weights 97 of the weight rows 93 and 96 of the hollow portion 40 of the upper frame 4 are also drawn out to the hollow portion 20 of the vertical frame 3 and the hollow portion 20 of the vertical frame 2. The number of weights 97 that hang down from the hollow portions 20 of the frame 2 increases, and the number of weights 97 in the hollow portions 20 on the other end 82 and 85 side of the no-back chains 91 and 94 increases. Accompanied by one end 80 of no-back chains 91 and 94 and 83, an increasing reaction force F having a direction V2 according to the weight of the increased weight 97 is generated, and the sprocket wheel 134 is further rotated to further remove the uppermost blade 9 as the reaction force F increases. 9 and 10, the opening 8 is opened as shown in FIGS. 9 and 10, and the maintenance of the open state of the opening 8 is prohibited by the ratchet mechanism. This can be done.

  Thus, in the blind device 1, the rising of the lowermost blade 9 at the opening 8 is not only caused by the manual operation force based on the rotation of the sprocket wheel 134, but also by the rising of the hollow portions 20 of the vertical frames 2 and 3. Based on the weight of the portions of the elongated bodies 12 and 13, respectively, specifically, based on the total weight of the weight of the portion where the no-back chains 91 and 94 increase and the weight of the weight 97 where the number increases. As a result of the increased reaction force F generated by the reaction force generation mechanism 11 being applied to the one end 80 and 83 of the no-back chains 91 and 94, the ball chain 133 in the opening to closing of the opening 8 is formed. It is not necessary to increase the manual operation force to the increase in the number (number) of the blades 9 to be raised. Therefore, according to the blind device 1, the force generated by the reaction force generation mechanism 11 increases. Was difficulty of the manual operation by the operator in an open from the closed to the opening 8 by the reaction force F can be resolved.

  In the blind device 1, the ball chain 133 travels by a ratchet mechanism in a state in which the plurality of blades 9 are arranged above the opening 8 so as to open the opening 8 as shown in FIGS. 9 and 10. Simultaneously with the release, the ball chain 133 is manually operated for traveling in the other direction, and the sprocket wheel 134 is rotated via the wheel 132 and the shaft member 131, and this rotation causes the no-back chain 91 to move in the direction B and the no-back chain 94. Travels in the direction D, respectively, and is connected to one end 80 and 83 of the no-back chains 91 and 94 along with the traveling with rotation of the sprocket wheels 111 and 112 and 121 and 122 in the directions B and D in the no-back chains 91 and 94, respectively. The connecting plates 100 and 102 are also a pair of rollers 10 in the guide passage 28. And the lowermost blade 9 connected to the connecting plates 100 and 102 by this lowering is also supported by the guide movement of the uppermost blade 9 and the uppermost blade 9. With the release of the folding of the leading edge link member 71 and the trailing edge link member 73 between them and the lowering of the plurality of blades 9 between the blades 9 adjacent to the uppermost blade 9 and the lowermost blade 9. In the vertical direction V, the folding of the front edge link member 71 and the rear edge link member 73 from the upper side to the lower side is successively released by further manual travel in the other direction of the ball chain 133. While the number (number) of the blades 9 lowered by the accompanying lowering of the blades 9 decreases, the other ends 82 and 85 of the no-back chains 91 and 94 are respectively formed in the hollow portion 20 of the vertical frame 3 and the vertical frame 2. Raised in each of the hollow portions 20 The weights 97 of the weight rows 93 and 96 attached to the other ends 82 and 85 and the no-back chains 91 and 94 following the other ends 82 and 85 as a result of the rising are also the hollow portion 20 and the vertical length of the vertical frame 3. It is raised in each of the hollow portions 20 of the frame 2, moved to the hollow portion 40 of the upper frame 4, pulled back to the hollow portion 40 of the upper frame 4, and supported by the lower guide wall portion 46 and the bottom wall portion 43. The number of weights 97 that hang down from the hollow part 20 of the vertical frame 2 and the hollow part 20 of the vertical frame 2 is decreased, and the no-back chains 91 and 94 are reduced as the number of weights 97 in the hollow part 20 decreases. At one end 80 and 83, a decreasing reaction force F having a direction V2 corresponding to the weight of the reduced weight 97 (upward direction) V2 is generated. As the reaction force F decreases, the sprocket wheel 134 further rotates. A plurality of blades 9 excluding the lower blade 9 By lowering the whole, the opening 8 is closed by the whole of the plurality of blades 9 as shown in FIGS. 1, 3, 6 and 8.

  Thus, in the blind device 1, when the lowermost blade 9 is lowered at the opening 8 by the manual operation force based on the rotation of the sprocket wheel 134, a long body is formed in each of the hollow portions 20 of the vertical frames 2 and 3. Based on the weights of the parts 12 and 13, specifically, the reaction force F that decreases based on the total weight of the weights of the parts of the no-back chains 91 and 94 that decrease and the weight of the weight 97 that decreases in number. As a result of the reaction force generation mechanism 11 generating the end portions 80 and 83 of the no-back chains 91 and 94, according to the blind device 1, the manual operation force to the ball chain 133 in the opening to the closing is reduced. This can be made consistent with the decrease in the number of blades 9 to be lowered. Therefore, according to the blind device 1, the opening is caused by the decreasing reaction force F generated by the reaction force generation mechanism 11. From 8 opening of the can eliminate the difficulty of the manual operation by the operator in the closure.

  Further, in the blind device 1 described above, the opening 8 can be lightly opened or closed by directly lifting or lowering the uppermost blade 9 manually instead of manually operating the ball chain 133. From this point of view, it is possible to eliminate the difficulty of manual operation by the operator for opening and closing the opening 8.

  Further, in the blind device 1, the entire opening 8 shown in FIGS. 1, 3, 6, and 8 is closed in an interdigital manner, that is, the opening that creates a gap between each of the plurality of blades 9. 8 partly closed or partially between the closed state of the opening 8 shown in FIGS. 1, 3, 6 and 8 and the open state of the opening 8 shown in FIGS. In the avalanche-like closing, the operation knob 147 is raised until the stop plate 150 is brought into contact with the lower flange 142 of the pair of flanges 142, and the engagement member 145 is also raised via the operation rod 143. Then, the blade body 54 of the uppermost blade 9 is rotated in the direction R about the shaft member 58 through the round bar 146 engaged with the engagement member 145 in the slit 144, and the leading edge link member 71 is rotated along with this rotation. And through the trailing edge link member 73 As shown in FIG. 11, the blades 9 lower than the uppermost blade 9 are also rotated in the direction R about the shaft member 58 to tilt the plurality of blades 9 as a whole. 9, the opening 8 can be completely closed, and this complete closed state can be maintained with an elastic engagement in one recess between the arc projections 151 of the leaf spring 152, and In order to change the tilting state of the plurality of blades 9, the operation knob 147 is moved up and down, and the operation knob 147 is moved up and down by elastic engagement with other recesses between the arc projections 151 of the leaf spring 152. In addition, when the tilted state of the plurality of blades 9 shown in FIG. 11 is released and the opening 8 shown in FIGS. 1, 3, 6 and 8 is returned to the closed state, it is stopped. The plate 149 is brought into contact with the collar 142 above the pair of collars 142. The operating knob 147 is lowered until the engaging member 145 is lowered via the operating rod 143. By this lowering, the blade of the uppermost blade 9 is connected via the round bar 146 engaged with the engaging member 145 in the slit 144. The main body 54 is rotated about the shaft member 58 in the direction R, and with this rotation, the lower blade 9 than the uppermost blade 9 also causes the shaft member 58 to pass through the front edge link member 71 and the rear edge link member 73. What is necessary is just to rotate to the direction R as a center.

  In the above-described blind device 1, the lowest blade 9 is lifted in advance in the vertical direction V among the plurality of blades 9 in the opening 8 to open the opening 8, while the lowest blade 9 is advanced. Then, the opening 8 is closed and the opening 8 is closed. For example, as described in Japanese Patent Application Laid-Open No. 2011-132806, in the opening state of the opening 8, the plurality of blades 9 are connected to the opening 8. When the opening 8 is closed, the uppermost blade 9 of the plurality of blades 9 overlapped with each other in the opening 8 is raised in advance in the vertical direction V, As the upper blades 9 rise, the lower blades 9 remaining one after another through the link mechanism 10 are raised to close the opening 8, while the opening 8 is opened, the uppermost blade 9 is preceded. Down and Or may be a blind apparatus under the blade 9 that remains brought one after another through a link mechanism 10 by the lowering of the upper blade 9 is lowered is adapted to open the opening portion 8.

  Further, in the above blind device 1, the weights of the weights 97 are the same, but, for example, the weights of the weights 97 are gradually increased from the other ends 82 and 85 toward the one ends 80 and 83. In addition, the length of the weight rows 93 and 96 from the other ends 82 and 85 is about the height of the vertical frames 2 and 3, but the no-back chain 91 from the other ends 82 and 85 to the one ends 80 and 83 is used. The weights 97 and 94 may be provided to have the lengths of the weight rows 93 and 96. Furthermore, without providing the weight 97, the individual chain elements of the no-back chains 91 and 94 themselves are used as weights. Also good.

  Further, the traveling mechanism 14 in the blind device 1 is configured to rotate the sprocket wheel 134 with a ball chain 133 that can be manually operated, but instead of or together with this, the sprocket wheel 134 is rotated with an electric motor. It may be.

  In addition, the connecting mechanism in the blind device 1 is composed of the link mechanism 10 including the plate-like front edge link member 71 and the rear edge link member 73. Such a connection mechanism is a plate-like front edge link member. It may replace with 71 and the trailing edge link member 73, and may comprise and comprise the string or wire which connects the blade | wing 9 so that it can approach and separate mutually.

DESCRIPTION OF SYMBOLS 1 Blind apparatus 2, 3 Vertical frame 4 Upper frame 7 Frame body 8 Opening part 9 Blade | wing 10 Link mechanism 11 Reaction force generation mechanism

Claims (16)

  Specified by a frame having a first and second vertical frame juxtaposed to each other and a horizontal frame bridging the first and second vertical frames, and the first and second vertical and horizontal frames. A plurality of blades juxtaposed to each other in the vertical direction in the opening, a coupling mechanism for connecting the blades adjacent in the vertical direction among the plurality of blades to each other, and the number of blades moved up and down in the opening And a reaction force generation mechanism that generates a reaction force that is opposite to the direction of the blade load at the opening, and that has a plurality of blades. The opening is opened and closed by the lowering and rising of the lowermost blade or by the rising and lowering of the lowest blade, and the reaction force generation mechanism is arranged at one end at the top of the plurality of blades on the first vertical frame side or Connected to the lowest blade and the other end Is movable up and down in the second vertical frame, and is disposed on the second vertical frame side at one end with a flexible first long body arranged to run through the horizontal frame. It is connected to the uppermost blade or the lowermost blade of the plurality of blades, and is movable up and down in the first vertical frame at the other end, and is arranged to be able to travel through the horizontal frame. A flexible second elongate body, and a guide mechanism for guiding the travel of the first and second elongate bodies. In each of the first and second vertical frames, the reaction force is generated by the reaction force generation mechanism based on the weight of the increased portion of the first and second elongated bodies, and the reaction force is increased. Opening and closing device.   The first elongate body includes a flexible first elongate body main body and a first weight row attached to a portion that moves up and down within the second vertical frame of the first elongate body main body. The second elongate body is attached to a flexible second elongate body main body and a portion that moves up and down within the first vertical frame of the second elongate body main body. The opening / closing device according to claim 1, further comprising a second weight row.   The opening / closing device according to claim 2, wherein each of the first and second elongated body bodies includes a chain or a no-back chain.   4. The opening / closing device according to claim 3, wherein each of the first and second weight rows includes a plurality of weights rotatably attached to a chain or a no-back chain.   The guide mechanism includes a first turning rotary body that guides the mutual travel between the first vertical frame and the horizontal frame of the first long body, and the second vertical frame and the horizontal frame of the first long body. The opening part opening-closing apparatus as described in any one of Claim 1 to 4 provided with the 2nd turning rotation body which guides mutual driving | running | working between.   The opening / closing device according to claim 5, wherein each of the first and second turning rotators comprises a sprocket wheel.   The guide mechanism includes a third turning rotary body that guides the mutual travel between the first vertical frame and the horizontal frame of the second long body, and the second vertical frame and the horizontal frame of the second long body. The opening part opening-closing apparatus as described in any one of Claim 1 to 6 equipped with the 4th turning rotary body which guides mutual travel | movement between.   The opening / closing device according to claim 7, wherein each of the third and fourth turning rotating bodies comprises a sprocket wheel.   A traveling mechanism for traveling the first and second elongated bodies is further provided to allow the plurality of blades to open and close the opening by lowering and raising the uppermost blade or raising and lowering the lowermost blade. The opening / closing device according to any one of claims 1 to 8.   The opening / closing device according to claim 9, wherein the travel mechanism includes an engagement rotating body that engages with the first and second elongated bodies.   The opening / closing device according to claim 10, wherein the engaging rotator is a sprocket wheel.   The uppermost blade is fixed to the first and second vertical frames, and the remaining blades excluding the uppermost blade among the plurality of blades can be raised and lowered, and the lowermost blade is the first blade. An opening / closing device that is connected to one end of the first and second elongated bodies and that can be raised and lowered, and opens the opening by first raising the lowest blade in the opening, The opening and closing device according to any one of claims 1 to 11, wherein the opening is closed by lowering the lowest blade in advance.   The plurality of blades are movable up and down, and the uppermost blade is an opening / closing device that is connected to one end of the first and second elongated bodies and is movable up and down. The uppermost blade is lowered in advance to open the opening, while the uppermost blade is raised in advance to close the opening. Opening and closing device according to claim 1.   The lowest blade is fixed to the first and second vertical frames, and the remaining blades except the lowest blade among the plurality of blades can be raised and lowered, and the highest blade is the first blade. An opening and closing device connected to one end of the first and second elongated bodies and capable of moving up and down, wherein the uppermost blade in the opening is lowered in advance to open the opening, The opening / closing apparatus according to any one of claims 1 to 11, wherein the opening is closed by raising the uppermost blade in advance.   The opening part opening-closing apparatus as described in any one of Claim 1 to 14 further equipped with the tilting mechanism which tilts a some blade | wing. The opening / closing device according to any one of claims 1 to 15, wherein the opening / closing device is a blind device or a shutter.

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