JP2004204673A - Roll type shielding device and opening part device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a roll type shielding device and an opening part device reducing deviation in quality and surely stopping a movable stile in an arbitrary position. <P>SOLUTION: The roll type shielding device is provided with a windable shielding material 7, a storage part 8 winding and storing the shielding material 7, the movable stile 9 taking in/out the shielding material 7 from the storage part 8, guide parts 10 slidably guiding both ends of the movable stile 9, racks 11 provided in the respective guide parts 10, pinions 12 geared with the respective racks 11, a linking shaft 13 rotatably supported along the movable stile 9 and connecting the both pinions 12, and a stop mechanism 14 stopping the movable stile 9 at the arbitrary position. The stop mechanism 14 is provided with a lock receiving part 35 provided in the linking shaft 13, a lock part 36 disengagingly engaged with the lock receiving part 35 and stopping the rotation and an operation part 37 operating the lock part 36. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a roll-type shielding device and an opening device, and more particularly to a roll-type shielding device and an opening device with an improved structure for stopping a movable frame.

  As the opening device, there is known an opening device including a frame provided at an opening of a building, a shoji provided in the frame so as to be openable and closable, and a roll screen provided in the frame (for example, And JP-B-52-15089. The roll-type screen door has a storage section for winding and storing the net body, a movable frame for holding the leading end of the net body, pulling out the network body from the storage section to open and close the screen door, and both ends of the movable frame. And a guide portion for slidably guiding the portion.

  In the roll type screen door, since the mesh body is urged by a spring so as to be automatically wound and stored in the storage section, when the movable frame is moved in the screen door closing direction and released, the spring force is applied. The movable frame moves toward the storage section. Therefore, in the case of a roll type screen door that is used only in the fully opened / closed state, the door frame is often locked to the frame by a latch component or the like when the screen door is fully closed. On the other hand, when it is necessary to stop the movable frame of the screen door at an arbitrary position, such as when using a horizontal sliding roll screen for a sliding window, the movable frame is pressed by pressing a braking member such as rubber against the frame. Or a structure in which a movable frame is locked to a door frame of a shoji by a latch component or the like.

Japanese Utility Model Publication No. 52-15089

  However, the structure in which the braking member is stopped using the braking member has problems that the braking member is easily worn and has low durability, and the quality tends to vary due to the accuracy of construction and production, sand and dust. Further, in the structure in which the movable frame is latched to the door frame of the shoji with a latch component or the like, there is a problem that, when the shoji is light, the movable frame and the shoji move freely by the force of the spring.

  The present invention has been made in consideration of the above circumstances, and has as its object to provide a roll-type shielding device and an opening device which can reduce a variation in quality and can surely stop a movable frame at an arbitrary position.

  In the present invention, the invention according to claim 1 includes a windable shielding material, a storage portion for winding and storing the shielding material, a movable frame for pulling the shielding material out of the storage portion, and a movable frame. A guide part that slidably guides both ends of the frame, racks provided in each guide part, a pinion that meshes with each rack, and the two pinions rotatably supported along the movable frame. What is claimed is: 1. A roll-type shielding device comprising: an interlocking shaft to be connected; and a stop mechanism for stopping the movable frame at an arbitrary position, the stop mechanism comprising: a lock receiving portion provided on the interlocking shaft; It is characterized in that it has a locking portion that is detachably engaged with the receiving portion and stops rotation, and an operation portion that operates the locking portion.

  The invention according to claim 2 is an opening device comprising a frame provided at an opening of a building, a shoji provided on the frame so as to be openable and closable, and a roll-type shielding device provided on the frame. The roll-type shielding device includes a windable shielding material, a storage portion for winding and storing the shielding material, a movable frame for pulling the shielding material out of the storage portion, and both ends of the movable frame. Guides slidably guide, racks provided on the respective guides, pinions meshing with the respective racks, and interlocking shafts rotatably supported along the movable frame and connecting the two pinions. And a stop mechanism for stopping the movable frame at an arbitrary position. The stop mechanism engages with a lock receiving portion provided on the interlocking shaft and is detachably engaged with the lock receiving portion. It has a locking part for stopping rotation and an operating part for operating the locking part. The features.

  According to the present invention, the following effects can be obtained.

  (1) According to the first aspect of the present invention, a windable shielding material, a storage portion for winding and storing the shielding material, a movable frame for pulling out and inserting the shielding material from the storage portion, and the movable frame A guide part that slidably guides both ends of the frame, racks provided in each guide part, a pinion that meshes with each rack, and the two pinions rotatably supported along the movable frame. An interlocking shaft to be connected; and a stop mechanism for stopping the movable frame at an arbitrary position. The stop mechanism includes a lock receiving portion provided on the interlocking shaft, and a detachable engagement with the lock receiving portion. Since it has a locking portion for stopping rotation and an operating portion for operating the locking portion, there is little variation in quality, and the movable frame can be reliably stopped at an arbitrary position.

  (2) According to the second aspect of the present invention, an opening having a frame provided at an opening of a building, a shoji provided on the frame so as to be openable and closable, and a roll-type shielding device provided at the frame. A roll-type shielding device, wherein the roll-type shielding device includes a windable shielding material, a storage portion for winding and storing the shielding material, and a movable frame for pulling the shielding material out of the storage portion. Guides for slidably guiding both ends of the movable frame, racks provided on the respective guides, pinions meshing with the respective racks, and the pinions rotatably supported along the movable frame. And a stop mechanism for stopping the movable frame at an arbitrary position. The stop mechanism is provided with a lock receiving portion provided on the link shaft, and is detachably attached to the lock receiving portion. A locking portion for engaging and stopping rotation, and an operating portion for operating the locking portion. And for that, there is little variation in quality, the movable rail can be stopped reliably to any position.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of an opening door showing an embodiment of the present invention, FIG. 2 is a transverse sectional view of the opening device, FIG. 3 is a view schematically showing a net body, and FIG. (B) is a sectional view taken along line AA of (a), (c) is a sectional view taken along line BB of (a), FIG. 4 is a perspective view schematically showing one end of a movable frame, and FIG. It is a cross-sectional view which shows the use state of a type screen door.

  As shown in FIGS. 1, 2 to 5, the opening device 1 includes a frame 2, which is a sash frame provided in an opening of a building, and sliding doors 3 a and 3 b provided in the frame 2 so as to be openable and closable. And a roll type screen door 6 which is a roll type shielding device provided in the frame 2. The frame 2 includes an upper frame 2a, a lower frame 2b, and left and right vertical frames 2c and 2d made of, for example, an extruded aluminum material. The opening device 1 in the illustrated example is configured as a sliding window sash, and inside and outside sashes 3a and 3b are provided in a frame 2 so as to be openable and closable in a laterally sliding manner. The shoji screens 3a and 3b are formed by mounting a glass panel 5 in a frame 4 composed of, for example, an upper frame 4a, a lower frame 4b and left and right vertical frames 4c and 4d made of extruded aluminum.

  The roll-type screen door 6 stores a net 7 that is a windable shielding material, a storage unit 8 that winds and stores the net 7, and stores the net 7 by holding a tip end of the net 7. A movable frame (also referred to as a door frame) 9 which is drawn in and out of the section 8 to open and close the screen door 6, guide sections 10 for guiding both ends of the movable frame 9 slidably, and respective guide sections. 10, a pinion 12 meshing with each rack 11, an interlocking shaft 13 rotatably supported along the movable frame 9 and connecting the two pinions 12, 12; And a stop mechanism 14 for stopping the position at an arbitrary position. A winding shaft 15 serving as a winding unit for winding the net 7 is rotatably provided in the storage unit 8, and the winding shaft 15 is a biasing unit (not shown) in a direction in which the net 7 is wound. It is biased by a spring.

  The opening device 1 in the illustrated example is provided with roll screens 6 and 6 on the left and right sides of the frame 2. As shown in FIG. 5, the roll-type screen door 6 on the left side is covered with a mesh body 7 between the door frame 4d and the auxiliary door frame 16 attached to the indoor surface of the door frame 4d of the open shoji 3b. The right-side roll-type screen door 6 is covered with a net body 7 between the door screen 4d of the inner sash 3a in an open state. A first fin-shaped insect repelling member 17a, an upper frame 2a, and a lower frame 2b for closing the space between the movable frame 9 of the roll-type screen door 6 on the left side and the auxiliary frame 16 of the outer sash 3b to prevent insects from entering. A fin-shaped second insect repelling member 17b for blocking the space between the worms and preventing the insects from entering is provided. The movable frame 9 of the roll screen door 6 on the right side has a fin-shaped first insect repelling member 17a, an upper frame 2a, and a lower frame 2b that block the space between the door frame 4d of the inner shoji 3a and prevent the insect from entering. A fin-shaped second insect repelling member 17b for closing the gap to prevent the invasion of insects is provided. The insect repellent members 17a and 17b may be made of mohair.

  In the illustrated example, the storage unit 8 is provided separately on the indoor side of the left and right vertical frames 2c and 2d, and the guide unit 10 is provided separately on the indoor side of the upper frame 2a and the lower frame 2b. Specifically, a frame 18 dedicated to the roll screen door 6 is detachably attached to the indoor surface of the frame 2 as a sash frame via a screw 19a as a fixing tool and a connection fitting 19b. The frame 18 of the roll screen 6 is composed of an upper frame member 18a, a lower frame member 18b and left and right vertical frame members 18c and 18d made of, for example, extruded aluminum, and the upper frame member 18a and the lower frame member 18b The left and right vertical frame members 18c and 18d are mounted on the indoor surfaces of the left and right vertical frames 2c and 2d.

  The left and right vertical frame members 18c and 18d are provided with storage portions 8 and 8, respectively, and the upper frame member 18a and the lower frame member 18b are provided with common guide portions 10 and 10 for the left and right movable frames 9 and 9 respectively. I have. A guide groove 20 serving as the guide portion 10 is provided on the facing surface of the upper frame member 18a and the lower frame member 18b along the longitudinal direction (left-right direction). The housing 8 is provided with an outlet 21 for pulling out the net 7, and the outlet 21 is preferably located at the position of the guide groove 20.

  As a means for fixing the front end of the net 7 to the movable frame 9, a bag 28 is formed at the front end of the net 7, as shown in FIGS. A core material (also referred to as a retaining material) 29 is inserted into the movable frame 9. Specifically, the tip of the net 7 is folded back for reinforcement and sewed in a bag shape communicating with the sewing thread 30a in the vertical direction in the figure. Is inserted. The core material 29 is made of, for example, an aluminum pipe, but may be made of any material as long as it has a rod shape having some rigidity. Also, both side edges (upper and lower edges in the figure) of the mesh body 7 are folded back as shown in FIGS. Sewn into a bag shape communicating in the longitudinal direction (left-right direction in the figure), thereby forming bag portions 31, 31. As shown in FIGS. 1 to 4, in the guide grooves 20 of the upper frame member 18a and the lower frame member 18b, a retaining guide rod 22 is directed from a substantially central portion in the guide groove 20 to the vicinity of both the vertical frame members 18c and 18d. When the net 7 is pulled out from the storage section 8 and the roll-type screen door 6 is closed, the retaining rods 22 are inserted into the bag portions 31, 31 on both sides of the net 7 when the net 7 is pulled out. It has become.

  In order to prevent the tip of the net 7 from loosening in the vertical direction and wrinkling partially on the tip of the net 7, both ends of the tip of the net 7 (upper and lower ends in the illustrated example). Are fixed to both ends of the movable frame 9 (upper and lower ends). Specifically, end caps 23 made of, for example, synthetic resin are attached to both ends of the movable frame 9, and a pair of end caps 23 are fixed to each end cap 23 with the front end of the mesh body 7 interposed therebetween. Nipping pieces 24a and 24b are provided. Concavo-convex portions 25 that engage with each other are formed on the opposing surfaces of both holding pieces 24a and 24b to prevent the mesh body 7 from slipping.

  The movable frame 9 is made of, for example, an extruded aluminum member. Inside the accommodating portion 26 for accommodating and holding the core material 29 at the distal end of the mesh body 7 in the longitudinal direction, and the distal end portion of the mesh body 7 is accommodated in the accommodating portion 26. A slit 27 to be drawn in, and a housing groove 32 that opens to the room side in which the interlocking shaft 13 is inserted and housed, are formed. A handle 33 is formed on the door end side of the movable frame 9 so as to form one side wall of the accommodation groove 32 and protrude toward the indoor side. The handle portion 33 is formed in a thin plate shape and is elongated along the longitudinal direction of the movable frame 9.

  6A is a perspective view showing the end cap of the movable frame, FIG. 6B is a perspective view showing the inside of the case portion of the end cap, FIG. 7A is a front view showing a stop mechanism in the case portion, (B) is a cross section taken along line DD of (a), FIG. 8 is a schematic perspective view of a stop mechanism, FIG. 9 is a perspective view showing a pinion and an interlocking shaft, FIG. 10 is a perspective view of a lever cap, and FIG. It is a top view of a stop part. In this embodiment, means for fixing the movable frame 9 which is moved and moved while pulling out the net 7 from the storage portion 8 in the end cap 23 at an arbitrary position corresponding to the door frame 4d of the shoji 3a, 3b. A stop mechanism 14 is provided. The stop mechanism 14 includes a lock receiving portion 35 provided on the interlocking shaft 13, a locking portion 36 that is removably engaged with the lock receiving portion 35 to stop rotation, and a locking portion 36. And an operation unit 37 for operating the.

  As shown in FIG. 9, the pinion 12 integrally has a pinion shaft 38 which is a rotation shaft having a predetermined length, and the pinion shafts 38 of the two pinions 12 are fitted to both ends of the interlocking shaft 13. They are joined together. The interlocking shaft 13 in the illustrated example is formed to be hollow, and a keyway 40 is provided in the outer periphery of the pinion shaft 38 in the axial direction in order to transmit rotation while allowing the pinion 12 to move in the axial direction. A key 41 that engages with the key groove 40 is protruded from the inner periphery. The pinion 12 including the pinion shaft 38 is supported movably in the axial direction by a predetermined amount, for example, about 4 mm with respect to the end cap 23 so as to absorb a construction error. The pinion shaft 38 is provided with an annular groove 42 slidably engaging along the groove edge 20a of the guide groove 20 near the pinion 12, and a gear is provided on the outer periphery of a substantially middle portion of the pinion shaft 38. A lock-shaped receiving portion 35 is provided.

  On the outer periphery of the pinion shaft 38, as shown in FIGS. 7, 8, 10 and 11, a substantially cylindrical lever cap 44 having a lever portion 43 and a locking portion 36 constituting the operation portion 37 is turned. It is freely movably fitted. The lever cap 44 is provided with a pair of support arms 45 for supporting the both sides (upper and lower surfaces in the illustrated example) of the locking portion 36 from the axial direction thereof, and the locking portion 36 is provided with an internal lock. An opening 46 is formed so as to face the stopper 35. A pair of support shafts 47 protrude from the opposing surface of the support arm 45, and the cam surfaces 48 a inclined in the left and right directions are slidably engaged with the support shafts 47 on both surfaces of the locking portion 36. Are formed. At the front of the locking portion 36, a projection 36a is provided to be engaged with the tooth groove 35a of the gear-shaped locking receiving portion 35.

  Further, a spring 49 is provided at a rear portion of the locking portion 36 as biasing means for biasing the locking portion 36 in a direction in which the protrusion 36a engages with the tooth groove 35a. The cam surface 48a of the cam groove 48 is in contact with the support shaft portion 47 by the urging force of the spring 49 (see FIG. 11), and the lever cap 44 is moved in one direction by the lever portion 43 (in the example shown in FIG. When it is turned counterclockwise, the support shaft 47 moves to the right and the locking portion 36 is moved in the engagement direction by the force of the spring 49. When the lever cap 44 is turned in the other direction (clockwise), the support shaft 47 is turned. 47 moves to the left, and the locking portion 36 is moved in the anti-engagement direction (the direction in which the projection is separated or separated from the tooth space) against the force of the spring 49. FIG. 6 shows the lower end cap on the right side of the roll screen door in FIG.

  In this case, when a strong impact or external force is applied to the movable frame 9, the stopping mechanism 14 is prevented from being damaged, that is, the teeth 35b of the engagement receiving portion 35 and the projection 36a of the engagement portion 36 from being damaged. For this purpose, at least one of the tooth groove 35a and the protrusion 36a is provided with a taper (inclined) so as to easily disengage, and the cam groove 48 of the locking part 36 is not engaged with the locking part 36. An escape portion d for allowing movement (escape) in the direction is formed.

  The lever cap 44 is provided with a spring 50 as urging means for urging the lever cap 44 in a counterclockwise direction which is a counter-engaging direction of the locking portion 36. Therefore, when releasing the engagement state of the locking portion 36, the lever portion 43 may be rotated clockwise against the urging force of the spring 50. When the lever portion 43 is released, the lever portion 43 is released. It automatically returns to the standby position, and the locking portion 36 is engaged with the locking receiving portion 35. The end cap 23 includes a case 51 having one side opened and two lids 52 and 53 attached so as to cover the open part. 44 is rotatably supported, and the locking portion 36 is slidably supported in the radial direction of the pinion shaft 38.

  The case portion 51 of the end cap 23 is provided with a handle end receiving portion 54 having an engagement groove 54a with which both ends in the longitudinal direction of the handle 33 of the movable frame 9 are respectively engaged. The lever portion 43 is provided with an engagement groove 43a along which the longitudinal operation knob portion (operation lever) 55 engages with both ends in the longitudinal direction along the movable frame 9. The operation knob portion 55 is made of, for example, an extruded aluminum member, and has a substantially C-shaped cross section that is rotatably (slidably) engaged and supported on an outer periphery of the interlocking shaft 13 in the accommodation groove portion 32 at a base end portion. The support portion 55a is provided (see FIG. 5). The operation unit 37 includes a lever 43 and an operation knob 55. When the grip portion 33 and the operation knob portion 55 of the movable frame 9 are gripped with a finger and the operation knob portion 55 is turned to the handle portion 33 side, the operation state of the stop mechanism 14 (the state in which the locking portion and the locking receiving portion are engaged). ) Can be released, and the movable frame 9 can be moved to an arbitrary position. When the operation knob 55 is released, the movable frame 9 returns to the standby position and the stop mechanism 14 is activated.

  By the way, in the case where the pinions 12 are arranged at both ends of the movable frame 9 and both the pinions 12 are connected by the interlocking shaft 13, the movable frame 9 is forcibly removed when one of the pinions 12 stops moving due to, for example, garbage. Attempting to move or applying a stronger impact to one side of the movable frame 9 than normal operation causes a strong force to be applied to the meshing portion between the one pinion 12 and the rack 11, and damages the teeth of the pinion 12 and the rack 11. And a shift in meshing (tooth skipping) may occur.

  In order to solve this problem, as shown in FIG. 12, a torsion spring 56 is provided between at least one of the pinions 12 and the interlocking shaft 13 as an absorbing member for absorbing an excessive force applied to one of the pinions. ing. In this case, a connection member 60 is provided between one pinion 12 and the interlocking shaft 13, and a torsion spring 56 is incorporated in the connection member 60. The connecting member 60 includes a first member 61 having a keyed fitting hole portion 61 a fitted into the pinion shaft 38 of the pinion 12, and a keyed shaft portion fitted with one end of the interlocking shaft 13. And a second member 62 having a second member 62a. The first member 61 is provided with a shaft hole 61b that rotatably fits a protruding shaft portion 62b protruding from a shaft end of the second member 62. A torsion spring 56 is loosely fitted on the protruding shaft portion 62a between the first member 61 and the second member 62. One end of the torsion spring 56 is attached to the first member 61, and the other end of the torsion spring 56 is attached to the second member. 62 are fixed to each other. In the normal opening / closing operation of the movable frame 9, the torsion spring 56 is slightly twisted, and the movable frame 9 is slightly tilted, but this does not affect the operability.

  According to the opening device 1 or the roll-type screen door (roll-type shielding device) having the above-described configuration, the roll-type screen door 6 has a windable net 7 and a storage unit that winds and stores the net 7. 8, a movable frame 9 for pulling the mesh body 7 out of the forwardly inclined storage portion 8, and guide portions 10, 10 for slidably guiding both ends of the movable frame 9, and respective guide portions 10, 10 Racks 11, 11, pinions 12, 12 meshing with the respective racks 11, 11, and an interlocking shaft 13 rotatably supported along the movable frame 9 and connecting the two pinions 12, 12. A stopping mechanism 14 for stopping the movable frame 9 at an arbitrary position, and the stopping mechanism 14 is capable of engaging and disengaging with the locking receiving portion 35 provided on the interlocking shaft 13. A locking portion 36 that engages with and stops rotation of the interlocking shaft 13; 6 has an operation unit 37 for operating the moving frame 6, unlike the conventional one having a stopping mechanism using a braking member or the like, with less variation in quality, and with a simple structure, the movable frame can be securely positioned at any position. Can be stopped.

  That is, since a friction type braking member is not used as the stopping mechanism, the durability of the braking member may be reduced, such as wear, or the quality may vary due to the accuracy of construction and production, sand and dust, etc. There is no. Also, unlike a structure in which a movable frame is latched to the door frame of a shoji with a latch component or the like, even if the shoji is light, the movable frame or the shoji will move freely by the force of the spring for winding the net. There is no problem. Further, racks 11 are provided on the guide portions 10, and pinions 12, 12 meshing with the racks 11, 11 are provided at both ends in the longitudinal direction of the movable frame 9, and both pinions 12, 12 are connected by an interlocking shaft 13. Because of the connection, the movable frame 9 can be easily and smoothly translated in parallel, and the operability of the roll screen 6 can be improved.

  Since the movable frame 9 is provided with a long operation knob 55 as the operation unit 37 along the longitudinal direction of the movable frame 9, the operation knob can be arranged at any position in the longitudinal direction of the movable frame 9. The operating state of the stop mechanism 14 can be released by easily operating the button 55, and the operability is excellent. Further, at least one of the tooth groove 35a of the gear-shaped locking receiving portion 35 of the stop mechanism 14 and the projection 36a of the locking portion 36 that engages with the tooth groove 35a is provided with a taper to facilitate disengagement. Since a relief portion d is formed in the cam groove 48 of the stop portion 36 to allow the locking portion 36 to move (escape) in the opposite engagement direction, a strong impact or external force is applied to the movable frame 9. In addition, it is possible to prevent the stop mechanism 14 from being damaged, that is, to prevent the teeth 35b of the engagement receiving portion 35 and the projection 36a of the engagement portion 36 from being damaged, thereby improving durability.

  FIG. 13 is a longitudinal sectional view of an opening device showing another embodiment, FIG. 14 is a transverse sectional view showing a use state of a roll type screen door, FIG. 15 is a perspective view of a stopping mechanism, and FIG. FIG. 17 (a) is a main part longitudinal sectional view showing an operating state of a stop mechanism, and FIG. 17 (b) is a lateral sectional view of the same. is there. In the present embodiment, the same parts as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted. In the present embodiment, the stop mechanism 14 is provided not at both ends in the longitudinal direction of the movable frame 9 but at a substantially intermediate portion in the longitudinal direction. Therefore, in the present embodiment, the structure of the end cap 23 is simplified, unlike the embodiment in which the stop mechanism 14 is provided in the end cap 23.

  The stop mechanism 14 is engaged with a gear-shaped locking receiving portion 35 provided at a substantially intermediate portion in the longitudinal direction of an interlocking shaft 39 connecting the pinions 12 at both ends, and a tooth groove 35 a of the locking receiving portion 35. And a locking portion 36 having a projection 36a which is detachably engaged. A box-shaped frame-shaped handle portion 33 is attached to a substantially middle portion of the movable frame 9 in the longitudinal direction, and the locking portion 36 is provided inside the handle portion 33 so as to be able to move forward and backward in the engagement direction. An operation unit 37 is provided so as to be reciprocally movable (movable up and down in the illustrated example) in a direction parallel to the interlocking shaft 13.

  The locking portion 36 is provided with a spring 49 for urging the locking portion 36 in the engaging direction. When the operation part 37 is moved upward or downward, the locking part 36 moves forward in the engaging direction by the force of the spring 49, and when the operation part 37 is moved to the middle position in the vertical direction, the locking part 36 is disengaged. The locking portion 36 is provided with a cam groove 48 having a mountain-shaped cam surface 48a so as to retreat in the mating direction, and the operating portion 37 is provided with a shaft 58 located in the cam groove 48. Although the cam surface 48a of the cam groove 48 is in contact with the shaft 58 by the urging force of the spring 49. At the top of the cam surface 48a of the cam groove 48, a concave portion 48b with which the shaft 58 is engaged is formed. When the shaft 58 is engaged with the concave portion 48b, the operating portion 37 is held at a neutral position (a vertical intermediate position). The stop mechanism 14 is held in a released state in which the locking portion 36 is separated (retracted) from the locking receiving portion 35. Further, in order to prevent the stop mechanism 14 from being damaged by a strong impact or an external force when the stop mechanism 14 is in operation, at least one of the tooth groove 35a of the lock receiving portion 35 and the protrusion 36a of the lock portion 36 meshes. The locking portion 36 is formed with a tapered portion, and the cam groove 48 of the locking portion 36 is formed with a relief portion d that allows the locking portion to move backward with respect to the shaft 58. According to the opening device or the roll type screen door of the present embodiment, the same operation and effect as those of the above embodiment can be obtained.

  18A and 18B are diagrams showing another embodiment of the movable frame, wherein FIG. 18A is a perspective view of a main part (that is, an end cap portion) viewed from above, and FIG. 18B is a perspective view of a main part viewed from below. 19 is a schematic exploded perspective view of a stop mechanism in the movable frame, FIG. 20 is a longitudinal sectional view of a main part of the movable frame, FIG. 21 is a view for explaining the operation of the stop mechanism, and FIG. FIG. 3B is a perspective view of a release state, and FIG. 3C is a perspective view of a forced release state. In the present embodiment, the same parts as those in the above-described embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be described. Stop mechanisms 14 are provided in end caps 23 provided at both ends in the longitudinal direction of the movable frame 9.

  The stop mechanism 14 is a center shaft (equivalent to the pinion shaft 38 in FIG. 8) which is fitted and connected to an end of the interlock shaft 13 to form a part of the interlock shaft 13 and rotates (rotates) integrally with the pinion 12. ) 70, a stopper receiver (locking receiving portion) 71 provided on the center shaft 70, a stopper (locking portion) 72 which removably engages with the stopper receiver 71 to stop rotation. The stopper 72 includes a lever cap (operating portion) 74 that can be operated via a slider 73, and further includes a horizontal plate 75 that supports these. The horizontal plate 75 is attached to a case portion (corresponding to 51 in FIG. 6) 76 of the end cap 23, and a cover member (not shown) is attached to the case portion 76 so as to cover the horizontal plate 75. The pinion 12 is fixed to an end of the center shaft 70.

  The stopper 72 and the stopper receiver 71 have face gear-like teeth 72a, 71a that engage (engage) with each other on opposing surfaces. The teeth 72a, 71a are formed so as to face each other in the opposite axial direction and in the circumferential direction. Although the number of teeth of both may be the same, they may be different as in the illustrated example. A groove is formed in the outer peripheral surface of the center shaft 70 in the axial direction, and a ridge that engages with the groove on the outer peripheral surface of the center shaft 70 is formed on the inner peripheral surface of the substantially cylindrical stopper receiver 71. Thus, the stopper receiver 71 is fitted to the center shaft 70 so as to be slidable in the axial direction, and rotates integrally with the center shaft 70. A groove 77 for positioning is formed in the outer peripheral surface of the stopper receiver 71 in the circumferential direction, and the axial movement of the stopper receiver 71 is regulated by engaging the groove 77 with the horizontal plate 75.

  The stopper 72 is urged by a compression spring 78 in a direction to engage with the stopper receiver 71. Since the stopper receiver 71 and the center shaft 70 rotate integrally, the rotation of the stopper receiver 71 is prevented when the stopper 72 is pressed against the stopper receiver 71 by the compression spring 78. In addition, the center shaft 70 and the stopper receiver 71 are separated from each other, and the center shaft 70 is slidable in the axial direction with respect to the stopper receiver 71. When attaching the frame 9 to the window frame, it is possible to reduce the influence of the dimensional error of the window frame.

  The slider 73 is a frame having an opening 73a and a cam groove 73b. The slider 73 is arranged in parallel with the center shaft 70, and is slidable in the axial direction of the center shaft 70. The arm 72b of the stopper 72 is fitted into the opening 73a of the slider 73, and the slider 72 slides against the urging force applied to the stopper 72, so that the stopper 72 operates in the release direction (upward in FIG. 20). Then, the engagement between the stopper 72 and the stopper receiver 71 is released.

  The lever cap 74 has a substantially cylindrical shape, and has a lever portion 74a (corresponding to 43 in FIG. 6) and a projecting portion 74b in a protruding state. The end of the operation knob 55 is fitted into a not-shown groove (corresponding to 43a in FIG. 6) of the lever 74a. The lever cap 74 is arranged coaxially with the center shaft 70, and is rotatable within a predetermined range. The protrusion 74b of the lever cap 74 engages with the cam groove 73b of the slider 73, and when the lever cap 74 is rotated against the urging force of the torsion spring 79, the protrusion 74b of the lever cap 74 moves in the cam groove 73b. The slide 73 slides in the axial direction of the center shaft 70.

  In the stop mechanism 14 in the end cap 23 disposed on the upper end side of the movable frame 9, in order to prevent the stopper 72 from moving downward by its own weight against the urging force of the compression spring 78, As shown in FIGS. 19 and 20, the horizontal plate 75 is provided with an auxiliary compression spring 80 and a pressing member 81, and the lever cap 74 is provided with a link 83 for operating the pressed member 82 between a pressed position and a non-pressed position. Have been. The pressed member 82 is slidably attached to an arc-shaped groove 72c formed in the arm 72b of the stopper 72 by using an E-ring 84. When the stop mechanism 14 is in the operating state (including at the time of forcible release), the pressing member 81 and the pressed member 82 are connected, and the stopper 72 moves downward by its own weight against the urging force of the compression spring 78. When the lever cap 74 is turned to the release position by the operation knob (operation lever) 55, the pressed member 82 is moved from the position of the pressing member 81. As a result, the urging force of the auxiliary compression spring 80 is released, the operation force of the operation knob 55 is reduced, and the operability can be improved.

  In the operating state (locked state) of the stop mechanism 14 shown in FIGS. 20 to 21A, the stopper 72 is engaged with the stopper receiver 71 by the urging force of the compression spring 78, thereby rotating the center shaft 70. Since it is blocked, the pinion 12 does not rotate, and the movable frame 9 is fixed to the window frame. When the operation knob 55 is rotated from the operating state against the urging force of the torsion spring 79, the lever cap 74 rotates as shown in FIG. The slider 73 slides in the cam groove 73b of the slider 73 to slide in the axial direction of the center shaft 70. When the pressing force for sliding the slider 73 becomes larger than the urging force for engaging the stopper 72 with the stopper receiver 71, the stopper 72 slides together with the slider 73 against the urging force of the compression spring 78, and thereby the stopper 72 The stopper mechanism 71 is disengaged from the stopper receiver 71 to release the lock mechanism 14 (unlocked state), so that the stopper receiver 71 and the pinion 12 can rotate, and the movable frame 9 can move along the window frame.

  When an external force is applied to the movable frame 9 in the operating state of the stop mechanism 14, a force for rotating the pinion 12 and the stopper receiver 71 is generated. However, since the stopper 72 does not rotate but can slide only in the axial direction, when the stopper receiver 71 rotates as shown in FIG. The stopper 72 is forcibly pushed in the direction away from the stopper receiver 71 against the urging force of the spring 78, and the engagement between the stopper 72 and the stopper receiver 71 is released to forcibly release the state (forcibly unlocked state). It becomes. However, since the stopper 72 is always receiving the biasing force of the compression spring 78, the stopper 72 is engaged with the stopper receiver 71 as soon as the force for rotating the pinion 12 is lost, and the stop mechanism returns to the operating state (locked state) again. As described above, also in the present embodiment, the same effects as in the above-described embodiment can be obtained.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, the present invention is not limited to the above embodiments, and various design changes and the like can be made without departing from the gist of the present invention. is there. For example, the present invention can be applied to not only a sliding window but also a sliding window, a vertical sliding window, an up-and-down window in which a shoji is provided to be freely opened and closed in a vertical direction. Further, the roll type screen door (roll type shielding device) may be not only a horizontal type but also a vertical type. Furthermore, in the above-described embodiment, an example in which two roll-type screen doors are used to form a double-opening type is shown, but a single-pull type may be used. Further, the storage section and the guide section of the roll screen may be formed integrally with or provided integrally with the frame of the sash frame. The opening device may be separate from the sash and may be composed of only a roll screen (roll type shielding device). The roll-type shielding device may be, for example, a roll screen or the like in addition to the roll-type screen. The shielding material may be, for example, a cloth or a screen in addition to a net or a net.

It is a longitudinal section of an opening part door showing an embodiment of the invention. It is a cross-sectional view of the opening device. It is a figure which shows a net body schematically, (a) is a front view, (b) is AA sectional drawing of (a), (c) is BB sectional drawing of (a). It is a perspective view which shows one end of a movable frame schematically. It is a cross-sectional view which shows the use state of a roll type screen door. (A) is a perspective view which shows the end cap of a movable frame, (b) is a perspective view which shows the inside of the case part of an end cap. (A) is a front view showing a stop mechanism in a case portion, and (b) is a cross section taken along line DD of (a). It is a schematic perspective view of a stop mechanism. It is a perspective view showing a pinion and an interlocking shaft. It is a perspective view of a lever cap. It is a top view of a locking part. It is a figure which shows an example of a shock absorption shaft member, (a) is a side view, (b) is a perspective view. It is a longitudinal section of an opening device showing other embodiments. It is a cross-sectional view which shows the use state of a roll type screen door. It is a perspective view of a stop mechanism. (A) is a longitudinal sectional view of a main part showing a released state of a stop mechanism, and (b) is a transverse sectional view of the same. (A) is a vertical sectional view of an essential part showing an operating state of a stop mechanism, and (b) is a transverse sectional view of the same. It is a figure which shows other embodiment of a movable frame, (a) is a principal part perspective view seen from the upper part, (b) is a principal part perspective view seen from the lower part. It is a schematic disassembled perspective view of the stop mechanism in the movable frame. It is a principal part longitudinal cross-sectional view of the same movable frame. FIGS. 7A and 7B are diagrams illustrating the operation of the stop mechanism, in which FIG. 7A is a perspective view of an operating state, FIG. 7B is a perspective view of a released state, and FIG.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Opening device 2 Frame 3a, 3b Shoji 6 Roll type screen (roll type shielding device)
7 Net (shielding material)
Reference Signs List 8 storage section 9 movable frame 10 guide section 11 rack 12 pinion 13 interlocking shaft 14 stop mechanism 35 locking receiving section 36 locking section 37 operating section 71 stopper receiving (lock receiving section)
72 Stopper (locking part)
74 Lever cap (operation unit)

Claims (2)

  A windable shielding material, a storage portion for winding and storing the shielding material, a movable frame for pulling the shielding material out of the storage portion, and a guide for slidably guiding both ends of the movable frame. Part, a rack provided on each guide part, a pinion meshing with each rack, an interlocking shaft rotatably supported along the movable frame and connecting the two pinions, and an arbitrary A stop mechanism for stopping at a position, wherein the stop mechanism is configured to engage with a lock receiving portion provided on the interlocking shaft and to be detachably engaged with the lock receiving portion. A roll-type shielding device, comprising: a locking portion for stopping rotation; and an operation portion for operating the locking portion. An opening device including a frame provided at an opening of a building, a shoji provided on the frame so as to be openable and closable, and a roll-type shielding device provided on the frame, wherein the roll-type shielding device is A shielding member that can be wound up, a storage portion that winds and stores the shielding material, a movable frame that pulls the shielding material out of the storage portion, and guides both ends of the movable frame slidably. A guide portion, a rack provided on each guide portion, a pinion meshing with each rack, an interlocking shaft rotatably supported along the movable frame and connecting the two pinions, and the movable frame being optional. And a stop mechanism for stopping at a position, wherein the stop mechanism is provided with a lock receiving portion provided on the interlocking shaft, and a locking portion for removably engaging with the lock receiving portion to stop rotation. And an operating part for operating the locking part. Apparatus.

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