TW200419062A - An automatic wind-up screen device - Google Patents

Abstract

An automatic wind-up screen device where resistance in screen-stretching operation is reduced as much as possible even with a damper provided in the device to absorb shock and collision noise during screen wind-up operation. One end of a coil spring is fixed to a bracket of a winding box, the other end is fixed to a winding shaft, and the damper is provided to absorb shock and collision noise. A one-way clutch mechanism is provided between the damper on a fixed shaft fixed to the winding box and the winding shaft. The clutch mechanism cuts off the connection between the damper and the winding shaft when the winding shaft is rotated in the direction to stretch the screen against rotational urging force of the coil spring, and the clutch mechanism connects the damper and the winding shaft when the winding shaft is rotated in the direction to wind up the screen.

Description

200419062 ， ·, 说明, description of the invention [Technical field to which the invention belongs] The present invention relates to an automatic reel-type screen device for dustproof, light-shielding, heat-insulating, insect-proof, etc. More specifically, it is about A damper is provided in the screen device for reeling the coil spring of the reel shaft to use the rotational thrust force as the driving source for the reel. The damper is provided to mitigate the impact and collision noise caused by the coil of the coil spring. Automatic reel screen device. [Prior art] Conventionally, a screen is wound around a reel shaft using a coil spring as a driving source, and an operation frame for opening and closing operations is installed at the front end of the screen, and the screen is made into a reel screen automatically. The device is widely known. In such an automatic reel type screen device, since the screen is reeled by the revolving pushing force of the return of the coil spring, the reel speed will increase at the end of the reel, and it has a When the operation frame at the front end collides with the roll case, it may receive a large impact or a loud collision sound. As a countermeasure to this, a damper is provided to suppress the increase of the roll speed. (For example, refer to Japanese Patent Application No. 20 (Η-3 05 3 7 1 [Revised Publication Number]). In the damper for the conventional screen device, generally, there is no relation to the direction of rotation of the reel shaft, The rotating force of the reel shaft is often transmitted to the damper. With the one-way clutch mechanism built in the damper, the resistance of the damper is applied to the reel when the reel screen is on the reel shaft. -5- (2) 200419062 on the bobbin shaft and rotating the bobbin shaft in the direction of extending the screen by rewinding is made so that the screen can be easily stretched without giving the above resistance. But ' Above one-way clutch The mechanism is built in the damper, so when the reel axis rotates in the direction of the stretch screen, a small amount of resistance will not work during the stretch operation, such as in the case of an oil damper, by preventing The rubber oil seal leaking oil in the damper and the friction between the shaft penetrating the rubber oil seal have resistance, so that the operation of the screen stretching may also become heavy. In addition, the above-mentioned damper is due to the screen The reel force of the rotating spring used for the reel is reduced, so the reel force of the screen in the state where the wind acts on the screen is significantly reduced compared to the case without a damper, and according to the situation, the reel will It is difficult to change. [Summary of the Invention]

The technical problem of the present invention is to provide a screen device that winds a screen around a coil spring using a coil spring as a driving source, and is provided to ease the screen in an automatic reel type in a screen device manufactured to automatically roll the screen. The screen roll of the screen device is also an damper for impact and collision noise, and is an automatic roll screen device that improves operability by reducing the resistance when the screen is extended as much as possible. Another technical problem of the present invention is to provide an automatic reel that is made so that the damper does not operate until the arbitrarily set deceleration start time point is made, and the reel force of the coil spring for the reel of the screen is effectively applied. Screen device. -6- (3) (3) 200419062 Another technical problem of the present invention is to provide an automatic reel-type screen device that can be manufactured to easily adjust the above-mentioned deceleration start point. Another technical problem of the present invention is to provide a method for making a screen in the middle of a stretching operation in a half-open state, and to consider a case where the operation frame is released by mistake, and it is not related to the amount of stretching of the screen. An automatic reel-type screen device in which a braking force is applied by a damper within a certain range in the later stage of storage. The present invention for solving the above-mentioned problems is to support the reel shaft rotatably in a reel box, and to mount the other end of a coil spring fixedly to a bracket on one end of the reel box so that it cannot rotate. A spring frame is installed on the reel shaft, and between the fixed shaft and the reel shaft of the bracket fixed to the reel box, an automatic coil is provided for the reel shaft with a damper that applies a braking force. For the cylindrical screen device, on the fixed shaft, when the reel shaft is rotated in the direction of extending the screen against the elastic pushing force of the coil spring, the connection between the damper and the reel shaft is cut off. When the drum shaft rotates in the direction of being rolled into the screen, a one-way clutch mechanism that connects the damper and the drum shaft is installed at least in the later stage of the drum. In the automatic reel type screen device having the above structure, a damper and a reel shaft are provided between the damper and the reel shaft fixed to the fixed shaft of the reel box, and the damper and the reel shaft are connected when the screen is reeled. The one-way clutch mechanism is made so that the rotation of the reel shaft is not transmitted to the damper by the one-way clutch mechanism when the screen is extended. Therefore, the screen has no effect due to the damping during the screen extension operation. (4) (4) 200419062 As much as possible to reduce the resistance when the screen is stretched, and compared with the situation where the one-way clutch mechanism is built in the conventional damper, it is more brisk The screen is stretched. The one-way clutch mechanism as the above-mentioned automatic reel type screen device is provided with a clutch plate provided on a damper side of a fixed shaft fixed to the reel case through a damper, and integrally integrated with the reel shaft. Rotate, but it can be made to slide freely in this axis direction, and the clutch plate on the spool shaft side that can be rotatably inserted into the support shaft of the clutch plate provided on the damper side is between the two clutch plates. The case where the reel shaft is rotated toward the screen is not coupled, but the case where the reel shaft is rotated toward the screen is to use the clutch teeth provided to rotate the reel shaft side clutch. In the case of the clutch plate on the damper side, a pushing mechanism is provided to the extent that the two clutch teeth are engaged. In this case, a unidirectional clutch mechanism can be simply constructed. In addition, the one-way clutch mechanism includes a clutch plate provided on a damper side of a fixed shaft fixed to the reel box via a damper and integrally rotatable with the reel shaft. This axial direction slides freely, and the clutch plate on the spool shaft side is connected to the support shaft of the clutch plate provided on the damper side via a screw operation mechanism, and the screw operation mechanism is a clutch plate on the spool shaft side. The support shaft is rotated, but when the reel shaft is rotated in a direction to extend the screen, the rotation is driven from the clutch plate on the damper side in a direction to be released along with the rotation, and the screen is wound toward the screen. In the case of rotating the reel shaft in the direction of the shaft, a mechanism driven in the direction of the clutch plate close to the damper side described above may be used.-(5) (5) 200419062 The mechanism is driven on the two clutch plates. Clutch teeth that mesh with each other when connected. In this case, the braking force by the damper is applied to the reel shaft at an arbitrary point in time, and at that time, the reel force of the screen by the coil spring is not reduced by the braking force, and it is effective. To make it work. As the above-mentioned screw operation mechanism, although a support shaft provided on a clutch plate on the damper side and a clutch plate on the spool shaft side are screwed with each other, it is not limited to this, and for example, it may be adopted Embedded in the projections of the thread grooves and pins. In addition, in a preferred embodiment of the present invention, the screw motion mechanism between the clutch plate on the spool shaft side and the support shaft is started from the roll of the screen by the spool shaft to the clutch plate. At the time when the deceleration of the damper operation is started by the mutual connection, the clutch plate on the spool shaft side is drivably set in a direction close to the clutch plate on the damper side. On the support shaft, the screen is extended when the screen is extended. When the clutch plate on the spool shaft side exceeds the operating range of the screw motion mechanism, the clutch plate on the spool shaft side is constituted as an idling area in which the clutch plate on the spool shaft side is idled against the support shaft. In this case, the idling range that can be provided on the support shaft has a pushing mechanism for pushing the clutch piece on the spool shaft side toward the screw operation mechanism side. Furthermore, the standing depth of the supporting shaft for the clutch plate on the damper side can be adjusted, thereby making it possible to adjust the operating time of the adjustable damper, that is, the point when the deceleration of the spool shaft starts. In addition, as the one-way clutch mechanism described above, the clutch is provided with a clutch -9-(6) (6) 200419062 although it is provided on the damper side of the fixed shaft fixed to the reel box via a damper, and the reel is connected to the reel. The shaft rotates integrally, but a clutch plate on the side of the reel shaft that can slide freely in this axis direction is made. It can also be manufactured with a clutch spring that pushes the two clutch plates toward each other and engages the screen. During the opening and closing, the clutch shaft is kept in the engaged state between a certain number of rotations from the screen's fully-rolled spool shaft, and thereafter the two clutch plates are separated from each other against the thrust force of the clutch spring. The actuating means of the time difference actuates the clutch. In this case, the one-way clutch mechanism can be made to include a clutch plate on the damper side and a shaft integrally rotating with the reel shaft, but a coil that can be slid freely in the axial direction and a coil with a female thread engraved on the inner periphery. The clutch plate on the cylinder shaft side includes a male member that is screwed onto the female screw on the outer periphery and can slide freely in the axial direction on the fixed shaft. The structure of the clutch spring which pushes the member toward the damper side. As the time difference actuating means of the clutch, a moving member which is relatively movable to the clutch shaft side of the spool shaft in the axial direction of the fixed shaft is provided, and the clutch plate and the moving member are integrated with the spool shaft. It can rotate smoothly, but it can be slid freely in the axial direction, and a clutch spring is interposed therebetween, and the moving member is connected to the fixed shaft via a spiral motion mechanism. The spiral motion mechanism can be configured. As the case where the spool shaft is rotated in the direction of extending the screen ', during the initial certain number of rotations, the moving members are moved away from the damper side in a state where the two clutch plates are engaged with each other. Directional drive ', and after a certain number of rotations, the above-mentioned roll -10- (7) (7) 200419062 is formed so that the clutch plate and the moving member on the barrel side are integrally formed and driven away from the damper side, and When the spool shaft is rotated toward the screen, the clutch plate and the moving member on the spool shaft side are integrally formed, and A direction close to the damper-side clutch driven plate, the clutch plate in the two rotation after a certain number of chewing mutual engagement phase, so that only the movable member means toward the direction close to the damper-side clutch plate driven. In addition, the above-mentioned screw operation mechanism may be configured to be provided with screws that are screwed to each other on the fixed shaft and the moving member, and the slidable range between the clutch plate on the spool shaft side and the moving member is set as a screen. Late-stage damper range of motion of the reel. In these cases, a coil spring for a screen reel is provided between the fixed shaft provided on the bracket of the reel box and the spring frame provided on the reel shaft, and it can be manufactured by rotating the fixed shaft. The above-mentioned coil spring is adjusted with the rotation and pushing force, and a damper is provided between the fixed shaft and the reel shaft. The spiral motion mechanism between the moving member and the fixed shaft follows the reel from the screen through the reel shaft. From the time point when the deceleration of the damper is started by the clutch plates being connected to each other, the clutch plate on the spool shaft side is drivably set in a direction close to the clutch plate on the damper side. When the screen on the reel side is out of the operating range of the screw motion mechanism when the screen is extended, a configuration may be provided in which the clutch plate on the reel shaft side idles against the support shaft to support the shaft. As described in detail above, according to the six tongues of the automatic reel type screen device according to the present invention, the screen is wound around a reel shaft using a coil spring as a driving source, and the screen device is manufactured to automatically reel the screen. It is set as -11-(8) (8) 200419062. It is a damper to reduce the impact and collision noise on the reel of the screen, and it can improve the operability by reducing the resistance when the screen is extended as much as possible. 'In addition, the damper is made inoperative until the deceleration start point can be set arbitrarily, and the reel force of the coil spring for the reel of the screen can be effectively applied. In addition, the unidirectional clutch mechanism is provided with a clutch plate provided on the damper side of the fixed shaft fixed to the reel box via a damper, and is integrally rotated with the reel shaft, but is formed so as to be able to face the axis. The clutch plate on the side of the reel shaft that can slide freely is provided with a clutch spring that urges the two clutch plates in a direction where they are coupled to each other, and when the screen is opened and closed, the screen is reeled from the fully reeled state of the screen. If the shaft rotates a certain number of times to keep the two clutch plates in the engaged state, and then resists the thrust force of the clutch spring to cause the clutch plates to move away from each other, the time difference actuating means is irrelevant to the screen. As for the amount of stretching, the braking force of the damper can be effectively used only within a certain range of the later stage of the screen storage. Therefore, not only the resistance is reduced when the screen is stretched, but the operability can be improved. During the reel, the reel force of the coil spring is effectively applied, and the screen in the middle of the stretching operation is produced. When the operation frame is released by mistake in a half-open state, and because the braking force of the damper described above can be effectively applied, it will not suffer a large impact as the operation frame conflicts with the roll box, or A loud collision sound is generated, and an accidental pinch of fingers or the like between the operation frame and the reel box may cause injuries, and an automatic reel screen device with improved operability and safety can be provided. -12- (9) 200419062 [Embodiment] Hereinafter, an embodiment of the automatic roll screen device according to the present invention will be described in detail with reference to the drawings.

Figures 1 and 2 show the overall structure of the first embodiment of the automatic reel-type screen device of the present invention in a schematic manner. Therefore, although the M display is made so that the screen can be opened and closed in a sideways manner. The screen device, but the screen device of the present invention is not limited to the above-mentioned horizontal pull-type screen device. The case where the screen opened and closed in the up-and-down direction is automatically rolled upward may also be applied. In addition, the above-mentioned screen device is not limited to these applications, although it is displayed as a light-shielding, heat-insulating, insect-repellent, etc. that is applied to the opening of a building. It can also be applied to the front of a shelf or for food delivery. A dust-proof screen device and the like for the opening portion of the catering cart used.

The screen device shown in Figs. 1 and 2 includes a screen frame 1 provided in an opening of a building, and a roll box supporting a roll screen 7 that can rotate the roll shaft 6 to construct the screen device. Screen frame! One of the side boxes 2. The screen frame 1 is composed of upper and lower frames 3, 4 connected to the upper and lower ends of the side frame 2; and a side frame 5 opposite to the side frame 2 opposite to the side frame 2, so that the coil spring 9 is built in In the reel shaft 6 in the reel box constituting the side frame 2 described above, the rotation of the coil spring 9 is used as the driving force for the screen reel of the reel shaft 6 to automatically rotate the screen 7 It is configured by the opening method. An operation frame 8 for opening and closing operations is installed at the front end of the screen 7 so that the hook handle 10 provided on the operation frame 8 is engaged with the side frame 5 when the screen 7 is stretched. 7 screens can be maintained -13- (10) (10) 200419062. In addition, the upper and lower ends of the screen 7 and the operation frame 8 are guided to the upper and lower frames 3 and 4. The above-mentioned reel shaft 6 which is rotatably supported on the upper and lower ends of the reel box with the brackets 1 2 and 1 3 rotatably supported by the support members 1 4 and 15 is inserted into the end The fixed shaft 16 of the bracket 13 fixed to the lower part is wound and fixed to one end of the coil spring 9 on a spring frame 18 which is fixedly supported on the fixed shaft 16 and the other end of the coil spring 9 The spring holder 19 is fixedly mounted in the reel shaft 6 fixed to the fixed shaft 16 in a rotatable state. Therefore, the spool shaft 6 of the screen 7 is connected to the fixed shaft 16 via the coil spring 9. In addition, as shown in FIGS. 3 and 4 in detail, an oil damper 25 is provided at the front end of the fixed shaft 16, and a unit is provided between the rotating shaft 25 a and the reel shaft 6 of the oil damper 25. Directional clutch mechanism 30. This unidirectional clutch mechanism 30 is a case where the spool shaft 6 is rotated in the direction of extending the screen 7 against the elastic pushing force of the coil spring 9, and the connection between the damper 25 and the spool shaft 6 is automatically cut off. In the case where the reel shaft 6 is rotated in the direction of being rolled into the screen 7 by the urging force of the coil spring 9, the damper 25 is connected to the reel shaft 6. Specifically, the above-mentioned one-way clutch mechanism 30 is provided with a clutch plate 31 and a spool shaft 6 connected to the damper side of the rotary shaft 2 5 a so as to be rotatable integrally, but is configured to be slidable in the axial direction. Freedom 'and the rotatable shaft-side clutch plate 3 2 ° which can be rotatably inserted with respect to the supporting shaft 3 3 of the clutch plate 31 provided on the damper side, and then' between the two clutch plates 31, 32 Set the clutch teeth 31a and 32a 'toward the direction of the extension screen 14- (11) (11) 200419062. When the reel shaft 6 is rotated, the reel shaft 6 is not turned on. When the shaft 6 rotates, it is combined. In addition, the clutch plate 32 on the spool shaft side is used as a pushing mechanism for pushing the spring to the clutch plate 31 on the damper side to the extent that the two clutch teeth 31a and 32a are combined, and the projection on the front end of the support shaft 33 is projected. A spring 34 is provided between the edge portion 3 3 a and the clutch plate 32. The spring 34 may be pressed to the extent that the clutch plate 3 2 is constantly in contact with the clutch plate 3 1 when the screen device of FIG. 1 is installed upside down. In addition, in the state shown in Fig. 1, if the weight of the clutch plate 32 is sufficient to constantly press it against the clutch plate 31, the spring 34 as the above-mentioned pushing means may be omitted. The oil damper 25 is connected to the fixed shaft 16 by the connecting portion 25b of the sleeve, and the brake shaft rotatably stored in the sleeve via a viscous fluid in the sleeve, and The rotation shaft 2 5 a is led out through the cover of the sleeve, but it is not limited to this, and various known structures may be used. In the first embodiment shown in the figure, although the connecting portion 2 5 b of the sleeve of the damper 25 is connected to the fixed shaft 16 and the rotating shaft 25 a of the damper 25 is connected to the clutch plate 31, The connection has no effect even if it is reversed. In the automatic reel type screen device having the above-mentioned structure, a connection damper is provided between the damper 25 and the reel shaft 6 fixed to the fixed shaft 16 of the reel case, and the reel of the screen 7 is provided. 25 and the one-way clutch mechanism 30 of the reel shaft 6, and when the screen 7 is extended, as shown in Figure 4-15- (12) 200419062 Because the one-way clutch mechanism 30 is used to make the reel shaft The rotation of 6 cannot be transmitted to the damper 2 5. Therefore, the resistance caused by friction and the like in the damper 25 is not applied during the stretching operation of the screen 7, and the resistance is reduced as much as possible when the screen 7 is extended. Compared with the case where the unidirectional clutch mechanism is built in the conventional damper, the screen stretching operation can be performed more briskly.

On the other hand, in the case where the screen 7 is reeled by the rotational pushing force accumulated by the coil spring 9, as shown in FIG. 3, the reel shaft 6 is in a state in which the unidirectional clutch mechanism 30 described above is connected. The reel shaft 6 is connected to the fixed shaft 16 via a damper 25. For this reason, although the reel shaft 6 is rotated by the elastic force of the rotation of the coil spring 9, the rotation can be suppressed by the damping force of the damper 25. By increasing the speed, it is possible to prevent a large impact sound from being generated while the operation frame 8 impacts the roll case, while a large impact sound is generated.

Figs. 5 to 7 show operation modes of important parts of the second embodiment of the present invention. The entire configuration of the one-way clutch mechanism except for the second embodiment is substantially the same as that of the first embodiment described with reference to FIGS. 1 and 2. The following description of the second embodiment For the same parts as those of the first embodiment, the symbols of the first embodiment attached to the drawings are used and explained, and the repetitive descriptions may be omitted. The one-way clutch mechanism 40 of this second embodiment is provided with a damper 25 through a fixed shaft 16 fixed to a bracket 13 of a reel box, as in the case of the first embodiment. The clutch plate 41, which is connected to the damper side, and the reel shaft 6, which are physically rotated, can be slid freely in the axis direction of -16- (13) 200419062, and is relatively The clutch plate 41 supports the clutch shaft 42 on the spool shaft side by supporting the shaft 43 via the screw operation mechanism 44. The damper 25 itself is as described in the previous first embodiment.

Between the two clutch plates 41 and 42, there are provided clutch teeth 41 a and 42 a that are irradiated with each other. Although these clutch teeth 41 a and 42 a are not extended toward the extension screen 7 and the reel shaft 6 is rotated, but It is hoped that when the reel shaft 6 rotates in the direction of being drawn into the screen 7, it is compatible with each other, but it does not necessarily need to have such a structure, and the rotation is not affected by the crimping with each other.

The above-mentioned screw operating mechanism 44 is a male thread that can be screwed on each of the support shaft 43 and the clutch shaft 42 on the spool shaft side, as shown in the figure, although the support shaft 43 and the clutch shaft 42 on the spool shaft side can be screwed together. 45 and female thread 46, but for example, it may be provided in a thread groove of the support shaft 43 or the clutch plate 42, and a protrusion such as a pin fitted in the other may be used. In short, when the clutch plate 42 on the spool shaft is rotated relative to the support shaft 43 and the spool shaft 6 is rotated in the direction of extending the screen 7, the clutch plate 42 is rotated from the damper side with the rotation of the clutch plate 42 In the case where the clutch plate 41 is driven in the direction of separation and the spool shaft 6 is rotated in the direction of the spool screen 7, a mechanism driven in the direction close to the clutch plate 41 on the damper side may be used. In the second embodiment shown in the figure, the screw operating mechanism 44 'between the clutch plate 42 and the support shaft 43 is made to have a length of the male thread 45, and the spool shaft 6 passes through the clutch plates 41, 42. Connect to each other to set the reel amount of screen 7 from the start roll of screen -17- (14) (14) 200419062 7 to the start of deceleration of the damper 2 5 at the start of deceleration. The clutch plate 42 is manufactured to be driven (screwed) in a direction close to the clutch plate 41 on the damper side. Fig. 5 shows the state at the time when the reel screen 7 is started with the reel shaft 6. Fig. 6 shows the state of the way in which the damper 2 5 is formed by the mutual connection of the clutch plates 4 1 and 4 2 . In this way, when the reel amount of the screen 7 is set to the start point of the deceleration start of the damper 2 5 by the length of the male thread 45, the damper 25 is not operated between the start of the reel and the start of the deceleration. For this reason, even if an external force such as wind acts on the screen 7, the screen 7 can be rolled up by using the strong reeling force of the coil spring 9 as it is. In addition, when the spool shaft 6 is rotated in the extending direction of the screen 7, as shown in FIG. 7, the clutch plate 42 is screwed in a direction away from the clutch plate 41. For this reason, the clutch plates 41 and 42 are The connection is cut off, so that the rotation of the reel shaft 6 cannot be transmitted by the damper 25, and the stretching operation of the screen 7 can be performed lightly. When the extending operation of the screen 7 is continued and the clutch plate 42 exceeds the operating range of the screw action mechanism 44, that is, the female thread 46 of the clutch plate 42 screwed with the male thread 45 is in a range exceeding the male thread 45 'Because the above-mentioned clutch plate 42 is idled with respect to the support shaft 43, an unthreaded idling area 4 7 is provided at the engraved end of the male screw 45 of the support shaft 43 (see FIG. 6). The above-mentioned engraving range of the male thread 4 5 is when the screen 7 is reeled with the reel shaft 6 from the fully extended state, and a pair of clutch plates 4 1 and 42 are engaged on the way to the damper 25- 18- (15) 200419062 The female thread 46 of the actuating clutch plate 42 must be made to have a range of movement. In addition, even if it is applied to a screen device having a difference in the length of the screen 7, the difference in length can be absorbed in the idling area 4 7 formed in the above.

The idle shaft 47 on the support shaft 43 is provided with a pushing mechanism for pushing the clutch plate 4 2 toward the male screw 4 5 side, and is provided between the flange portion 43 a at the front end of the supporting shaft 4 3 and the clutch plate 42. Spring 48. The structure and function of the spring 48 are the same as those of the spring 3 4 of the first embodiment, so the description is omitted. The clutch plate 41 made on the damper side is erected by screwing the support shaft 43, and the screwing position can be fixed by a lock 49 such as a fixing screw. The erection depth of the support shaft 43 can be freely adjusted by changing the erection depth of the support shaft 4 3 of the clutch plate 41 by removing the lock 4 9. The length changes' so you can adjust the action period of the damper.

FIG. 8 is a diagram showing the overall structure of the third embodiment of the automatic reel type screen device of the present invention, but the basic structure is different from that of the first embodiment except for the internal structure of the reel shaft 6. Changes, so the same symbol is attached to some or a considerable part, and these descriptions are omitted. The screen device of the third embodiment is a reel shaft 6 which can be rotatably supported at both ends via support members 6 4, 6 5 with respect to the brackets 1 2, 1 3 at the upper and lower ends of the retailer phase. Inside, a fixed shaft 66 at a fixed end portion is inserted into the upper bracket 12, and a fixed shaft 67 at a fixed end portion is inserted into the lower bracket 13. Then, one end -19- (16) 200419062 of the fixed coil spring 9 is rolled up on a spring holder 6 8 which is fixedly supported on the fixed shaft 66, and the other end of the coil spring 9 is fixedly mounted. On the spring frame 69, the spring frame 69 is non-rotatably mounted on a reel shaft 6 which is rotatable to the fixed shaft 66. Therefore, the reel shaft 6 of the screen 7 is connected to the fixed shaft 6 through the coil spring 9. In addition, as shown in FIGS. 9 to 12, an oil damper 75 is provided at the front end of the fixed shaft 67, and a one-way clutch is provided between the rotating shaft 75 a of the oil damper 75 and the spool shaft 6. Agency 80.

The one-way clutch mechanism 80 is made to rotate the reel shaft 6 in the direction of the extended screen 7 against the elastic force of the rotation of the coil spring 9 and can automatically cut off the damper 75 and the reel shaft 6. When the reel shaft 6 is rotated toward the screen 7 by the urging force of the coil spring 9, the damper 75 and the reel shaft 6 are connected.

To explain in more detail, the one-way clutch mechanism 80 includes: a clutch plate 81 provided on the damper side of the fixed shaft 67 fixed to the reel case via an oil damper 75; Shaft 6-the body is rotated, but the clutch plate 85 on the spool shaft 6 side can be slid freely in the axial direction, and the clutch springs 84 that push the two clutch plates 81 and 85 toward each other in a chewing direction, and When the screen 7 is opened and closed, the reel shaft 6 from the fully reeled state of the screen 7 is provided with a certain number of rotations to keep the two clutch plates 8 1 and 8 5 in the engaged state. The urging force of the clutch spring 84 constitutes a clutch member 82 that is a time difference actuating means of a clutch that operates so that the two clutch plates 81 and 85 are disengaged. -20- (17) (17) 200419062 The clutch member 82 includes a clutch plate 85 on the spool shaft 6 side, and the clutch plate 85 is relatively movable in the axial direction of the fixed shaft 67. Moving member 8 6. The moving member 86 is provided with a female screw 86b on the inner periphery of the flange portion 86a at the base end, and the female screw 8 6b and the male screw 6 7a provided on the fixed shaft 67 are screwed to each other. The screw operating mechanism 87 is formed together, and the moving member 8 6 is relatively movable with respect to the clutch plate 85 in the axial direction of the fixed shaft 67. In addition, the moving member 86 is fitted into the groove 85b provided in the clutch plate 85 by fitting the convex portion 86c of the end portion provided on the clutch plate 81 side with the groove, and then the clutch member 85 is engaged with the clutch. An end portion on the opposite side of the clutch plate 8 of the plate 85 is provided with a stopper 85c that abuts the convex portion 86c of the moving member 86. The clutch plate 85 and the moving member 86 are in contact with the reel shaft 6 It rotates physically, but the convex portion 86c of the moving member 86 in the axial direction is slidable in the groove 8 5 b of the clutch plate 85. Then, when the reel shaft 6 is rotated toward the screen 7 between the two clutch plates 8 1 and 8 5, the reel shaft 6 is rotated toward the screen 7 while the reel shaft 6 is not closed. In the case, the clutch teeth 8 1a ′ 8 5 a ° are provided. In addition, the clutch plate 8 5 of the clutch member 8 2 on the drum shaft side is opposed to the clutch plate 8 1 of the damper side as a push-bomb on both clutches. The teeth 8 1 a and 8 5 a are coupled to each other by a pushing mechanism, and a clutch spring 84 is provided between the flange portion 86 a at the base end of the moving member 86 and the clutch plate 85. The clutch spring 84 is provided with the screen device of Fig. 8 in any one of the above postures. (21) 200419062 The clutch plate 85 can be constantly contacted to the clutch / pressure by the clutch plate 85. The spiral operating mechanism 8 7 is a case where the member 8 2 on the side of the reel shaft 6 rotates with respect to the fixed shaft 67, but when the reel shaft 6 is rotated in the direction of the curtain 7, the initial rotation, It is the clutch plate 8 5 of the clutch plate 8 on the reel shaft 6 and the clutch plate 8 1 a of the clutch plate 8 1 on the 5 side. The surface of the clutch plate 8 1 a is driven by the moving member 8 6 from the damper 75 side. (Figures 9 to 10), and after a certain number of times the convex portion 86c of the rotating member 86 reaches the stop of the clutch plate 85, the clutch plate 85 and the moving member 86 are formed from the damper 75 side. Directional driven construction (Fig. 1 12). Conversely, the spool shaft 6 is moved toward the screen 7 so that the clutch plates 85 and 86 of the above-mentioned clutch member 82 are integrated and driven toward the clutch plate near the damper 75 (the 12th (Figures to 11)), the clutch teeth 85a from 82 of the reel shaft 6 and the clutch blade teeth 8 1 a on the damper 75 side are rotated after they are coupled with each other, so that the above-mentioned 8 6 is close to The direction of the clutch plate 8 1 on the side of the damper 7 5 (1 1 to 9). Meanwhile, the rotation of the spool shaft 6 is a sleeve of the oil damper 75 of the warp member 86, the clutch plate 85, and the clutch plate 81 which is chewed thereon. On the other hand, the oil damper 75 75a is fixed by the shaft 67 The j fixed on the reel box is now 8 1 and the clutch mechanism is extended to a fixed number of 8 5 a and the sides that are blocked from sliding away from each other are turned and integrated in the moving tool 85c. The moving member '8 1 is driven by the clutch moving member of the clutch member 8 1 (the rotating shaft to which the moving member is transmitted. Frame 13, -22- (19) (19) 200419062 So the damper 75 has an effect. The reel shaft 6 is supplied with a braking force. As can be understood from the above, the 'screw action mechanism 8 7 between the moving member 86 and the fixed shaft 67 is started by extending the screen 7 and performing the extension. 'Move the moving member 8 6 away from the damper 75 with respect to the fixed shaft 6 7' After moving only the distance d shown in FIG. 11, it engages with the clutch plate 85 so that the clutch plate 85 also faces the same direction. Direction. For this reason, the clutch plate 85 does not move away from the clutch plate 8 during the reel of the screen 7. In the case of opening (Fig. 10 and Fig. 11), the clutch plates 8 1 and 8 5 are connected at the same time as the start of the drum, and the damper 75 is actuated. When the 8 5 leaves (Fig. 12), the moving member 86 and the clutch plate 85 are moved toward the damper 7 5 side by the reel of the screen 7 and the clutch plate 85 is in contact with the clutch plate 8 1 To the end of the reel of the screen 7, that is, the moving member 86 is screwed into the space of the distance d to form the damper 75. The oil damper 75 is inside the clutch plate 81 constituting the sleeve. After accommodating the brake cylinder 75b rotatably through a viscous fluid, a rotation shaft 75a extending one end of the brake cylinder 75b is led out from the sleeve via a sealing member 75c, and the front end is connected to the fixed The front end of the shaft 67 is not limited to this, and various well-known structures may be adopted. Among the automatic reel-type screen device having the above-mentioned structure, a damper 75 and a fixed shaft 67 fixed to the reel box and Between the reel shafts 6 during the reel of the screen 7 A one-way clutch mechanism 80 connecting the damper 75 and the reel shaft 6 is provided, and when the screen 7 is extended, as shown in FIG. 9 to -23- (20) (20) 200419062 12 The clutch mechanism 80 and the rotation of the spool shaft 6 are made so as not to be transmitted to the damper 75. Therefore, even when the screen 7 is extended, the resistance force caused by friction and the like in the damper 75 is not affected. The resistance during the stretching of the screen 7 is reduced as much as possible, and compared with the case where a unidirectional clutch mechanism is built in the conventional damper, the screen stretching operation can be performed more briskly. On the other hand, in the case where the screen 7 is reeled by the rotational pushing elasticity accumulated in the coil spring 9, as shown in Figs. 9 to 11, the reel shaft 6 before the end of the storage of the screen 7 is completed. The reel shaft 6 is connected to the fixed shaft 67 via the damper 75 because it is connected to the one-way clutch mechanism 80 during several rotations. For this reason, the reel shaft 6 is The rotation of the coil spring 9 is pushed and rotated by the elastic force, but the increase in the rotation speed can be suppressed by the damping force of the damper 75, thereby preventing a large impact from being received when the operation frame 8 hits the roll case. On the one hand, a large impact sound is generated. Moreover, regardless of the amount of extension of the screen 7, because the braking force is applied by the above-mentioned damper 75 only within a certain range at the later stage of the storage of the screen 7, not only can the resistance be reduced and improved when the screen 7 is extended. In terms of operability, the reel force of the coil spring 9 for the reel can be effectively acted upon during reel, and the operation frame 8 is erroneously put in a state in which the screen 7 is half-opened during the extending operation of the screen 7 In the case of opening, the braking force of the above-mentioned damper 75 can be effectively applied, and the operation frame 8 will not impact the reel box and receive a large impact, or a large impact sound will be generated on the operation frame 8 Inadvertently pinching fingers and the like with the reel case, resulting in injury to -24- (21) (21) 200419062, and furthermore, compared with the conventional automatic reel type screen device, the operability and safety can be greatly improved. Promotion. 13 and 14 are diagrams showing a fourth embodiment of the present invention. The automatic reel type screen device of the fourth embodiment is integrally provided with a coil spring 9 and a one-way clutch mechanism as a driving source for the reel of the screen 7. The end portion is fixed to the reel. Structure of the fixed shaft 6 6 of the bracket 12 of the upper end of the box. The main structure of the one-way clutch mechanism of the fourth embodiment is substantially the same as that of the third embodiment described with reference to FIG. 8. Therefore, the following description of the fourth embodiment is the same as that of the third embodiment. The same parts of the 4th embodiment are explained by using the symbols of the 3rd embodiment shown in the drawings, and repeated descriptions of these are omitted. The automatic reel-type screen device of the fourth embodiment is the reel shaft which is rotatably supported on the two ends of the reel case by the brackets 1 2, 1 3 through the support members 6 4, 6 5 respectively. 6. A fixed shaft 66 of the bracket 12 for fixing the end portion to the upper portion is inserted through the inside thereof, and one end of the coil spring 9 is rolled and fixed to a spring that is fixedly supported on the fixed shaft 66. The other end of the coil spring 9 is fixedly mounted on the fixed shaft 66 and the reel shaft 6 in a rotatable state is a spring frame 6 9 which is integrally rotated. Therefore, the spool shaft 6 of the screen 7 is connected to the fixed shaft 66 via the coil spring 9. The fixed shaft 66 adjusts the rotation and pushing force of the coil spring 9 and can be fixed in a state of being arbitrarily rotated with respect to the holder of the roll box by a well-known means provided. Then, as shown in the figure of the brother 14, the -25- (22) (22) 200419062 oil damper 7 5 is installed on the fixed shaft 6 6 above, and the rotating shaft 2 5 a of the oil damper 7 5 and A unidirectional clutch mechanism 80 is provided between the spool shafts 6. The one-way clutch mechanism 80 is provided with a clutch plate 81 provided on the damper side of the fixed shaft 6 7 fixed to the reel case through an oil damper 75 and a body integral with the reel shaft 6. The clutch spring 8 4 can be rotated in the axial direction, but it can slide freely in the axial direction, and the clutch spring 8 4 that pushes the two clutch plates 8 1 and 8 5 toward each other in a mating direction, and When the screen 7 is opened and closed, the reel shaft 6 from the fully-rolled state of the screen 7 is provided with the clutch plates 8 1 and 8 5 held in the engaged state between a certain number of rotations, and thereafter resists the clutch. The urging force of the spring 8 4 constitutes a clutch member 82 that is a time difference actuating means of a clutch that is actuated such that the two clutch plates 8 and 85 are disengaged. In order to adjust the elasticity of the rotation and pushing force of the coil spring 9 above, the fixed shaft 66 can be appropriately rotated. Thus, the position of the moving member 86 on the male thread 66a on the fixed shaft 66 can be changed, so the screen 7 is extended. Operation 'When the moving member 86 of the clutch member 8 2 is out of the operating range of the screw action mechanism 87, that is, the female of the moving member 86 that is screwed with the male screw 6 a carved on the fixed shaft 66 The thread 8 6 b is a engraving of the male thread 6 6 a on the fixed shaft 6 6 when the moving member 8 6 is allowed to idle with respect to the fixed shaft 6 6 when it exceeds the range of the male thread 6 6 a. At the end, an unthreaded idling domain 66b is provided. The engraving range of the above-mentioned male thread 66a is when the screen 7 is reeled by the reel shaft 6 from the fully extended state, and a pair of clutch plates 81 and 85 are engaged in the middle and the damper 75 starts to move. The female thread 86b of the component 86 must be made to have a range of -26- (23) (23) 200419062 with movement. In addition, "even in the case of a screen device having a difference in the length of the screen 7", a method of absorbing the difference in length in the idling domain 66b is formed. The above-mentioned idling domain 66b on the fixed shaft 66 has a means for pushing the spring on the moving member 86 of the clutch member 8 2 toward the male thread 6 6 a. The spring seat 8 8 provided on the fixed shaft 66 and the above-mentioned means A spring 89 is provided between the moving members 86. When the reel shaft 6 is rotated toward the reel direction of the screen 7, the spring 89 is configured to press the female thread 8 6 b of the moving member 8 6 against the male thread 66 a of the fixed shaft 66 so as to be constantly threaded. Just fine. When the weight of the moving member 8 6 (the clutch member 82) in the state shown in FIG. 14 is that the female screw 86 b is sufficiently pressed against the male screw 6 6 a of the fixed shaft 6 6 at all times, this is taken as the above-mentioned push. The spring means 8 9 can be omitted. Furthermore, 'the other structures and functions of the automatic reel type screen device of the fourth embodiment are substantially the same as those of the third embodiment described above, so the same reference numerals are attached to the same or equivalent portions, and the descriptions thereof are omitted. . 15 to 17 are diagrams showing a fifth embodiment of the present invention. The fifth embodiment of the automatic reel-type screen device is provided with a one-way clutch mechanism 90, although the clutch plate 91 on the damper side and the reel shaft 6 are integrally rotated, but are made to slide in the axial direction. It is freely provided with a clutch plate 95 on the spool shaft side with a female thread 95b engraved on the inner periphery and a male thread 9 6a on the outer periphery screwed with the female thread 9 5 b. The clutch member 92 where the time difference of the clutch of the moving member 96 which slides freely in the axial direction on the shaft 67, and the clutch -27- (24) (24) 200419062 where the moving member 96 is pushed toward the damper side The structure of the spring 94. The main structure of the one-way clutch mechanism except for the fifth embodiment is substantially the same as that of the third embodiment described with reference to FIG. 8. Therefore, the following description of the fifth embodiment is the same as that of the third embodiment. The same parts of the third embodiment are explained by using the symbols of the third embodiment attached to the drawings, and repeated descriptions thereof are omitted. The fifth embodiment will be described in more detail. As described above, the clutch member 92 includes the clutch plate 95 for the spool shaft side with the female thread 9 5 b engraved on the inner periphery, and the clutch plate 95 can be directed to the above. The moving member 96 which relatively moves in the axial direction of the fixed shaft 67 is connected to each other by a male screw 9 6 a provided on the outer periphery of the moving member 96 and a female screw 95 b on the inner periphery of the clutch plate 95 of the spool shaft. The spiral movement mechanism 97 is formed by screwing on the ground. As can be seen from FIGS. 15 to 17, the moving member 96 can be relatively moved in the axial direction of the fixed shaft 67 with respect to the clutch plate 95. Then, the moving member 96 is inserted into both ends of the pins 67b of the grooves 96c and 96c provided at the facing positions on the inner periphery of the fixed shaft 67 in the axial direction of the fixed shaft 67 so as to be perpendicular to the fixed shaft 67. The rotation is restricted by the fixed shaft 67, and it can be inserted and slid in the axial direction. In addition, the clutch plate 95 on the spool shaft side is used as a pushing mechanism to push the clutch plate 91 on the damper side to the extent that the two clutch teeth 91a and 95a are combined, and the spool shaft 6 on the moving member 96 A clutch spring 94 is provided between the end portion on the side of the clutch plate 95 and the spring seat 68 provided on the fixed shaft 67. When the clutch spring 94 is installed in any of the above and below positions, the clutch plate 95 can be pressed to the clutch plate 91 so that it can be constantly engaged. -28- (25) (25) 200419062 can be always engaged. The spiral operating mechanism 97 rotates the reel shaft 6 from the fully-rolled state shown in FIG. 15 to the direction of extending the screen 7, and rotates a certain number of times before reaching the state shown in FIG. 16 It is the clutch teeth 95a of the clutch plate 95 on the spool shaft 6 side and the clutch teeth 91a of the clutch plate 91 on the damper 75 side that slide on each other while only letting the moving member 9 6 pass through the male thread 9 6 a and The female thread 9 5 b is screwed and driven toward the damper 75 side, and after a certain number of rotations and the end of the moving member 96 reaches the stopper 75d of the damper 75, as shown in FIGS. 16 and 17 It can be seen that the moving member 96 is stopped at its position, and the above-mentioned clutch plate 95 is driven away from the damper 75 side. Conversely, when the spool shaft 6 is rotated in the direction of being drawn into the screen 7, the clutch plate 95 is formed by screwing the male screw 9 6 a and the female screw 9 5 b from the state shown in FIG. 17. Driven to the position of FIG. 16, the clutch teeth 95 a of the clutch plate 95 and the clutch teeth 9 1 a of the clutch plate 91 on the damper 75 side are coupled to each other, and the subsequent rotation causes the moving member 9 6 The clutch plate 9 1 from the damper 7 5 side is driven in the direction of separation, and the state shown in FIG. 15 is formed. After the state shown in FIG. 15 is formed, the rotation of the spool shaft 6 is transmitted to the sleeve of the oil damper 75 via the clutch plate 95 and the clutch plate 91 that is affixed thereto. The rotation shaft 75 a is fixed to the bracket of the reel box by the fixed shaft 67, so the damper 75 functions and supplies a braking force to the reel shaft 6. As can be seen from the above, the -29- (26) (26) 200419062 screw movement mechanism 9 7 between the moving member 96 and the fixed shaft 6 7 is extended from the start of the screen 7 to perform its extension. For the fixed The shaft 67 moves the moving member 96 and the clutch plate 95 from the state of FIG. 15 to the states of FIG. 16 and FIG. 17, and performs the opposite action when the screen 7 is rolled. For this reason, when the clutch plate 95 is not separated from the clutch plate 91 during the winding of the screen 7, the clutch plates 91 and 95 are connected simultaneously with the start of the drum. The damper 75 is activated. On the other hand, when the two clutch plates 91 and 95 are separated (Figure 17), moving the member 96 by the drum of the screen 7 moves the clutch plate 95 toward the damper 75 side. In addition, the clutch plate 95 contacts the clutch plate 91 until the reel of the screen 7 ends, and the damper 75 is formed. Furthermore, the shaft joint 75e of the sleeve on which the damper 75 is provided can be connected to a fixed shaft of the spring for the drum corresponding to the bracket provided in the drum box (see Figs. 8 and 14). However, in the case where the above-mentioned fixed shaft is connected, for the same purpose as in the second embodiment, the clutch plate 95 is idly threaded by an upper portion of the male thread 9 6 a provided on the moving member 9 6 to be idled there. In the idling domain ', it is necessary to adjust the rotational spring force of the coil spring for the rotation of the fixed shaft of the bracket of the reel case. In addition, the other structures and functions of the automatic reel type screen device of the fifth embodiment are the same as those of the third embodiment described above, so the same symbols are attached to the same or equivalent parts, and these are omitted. instruction of. [Brief description of the drawings] -30- (27) (27) 200419062 Fig. 1 is a front cross-sectional view showing a partial cross-section of the first embodiment of the automatic roll screen device of the present invention. Fig. 2 is a side sectional view showing a first embodiment of the automatic roll screen device of the present invention. Fig. 3 is a sectional view of the spool shaft in the operating state of the damper of the first embodiment (at the time of the spool of the spring). Fig. 4 is a cross-sectional view of the spool shaft in the non-actuated state (when the spring is extended) of the damper of the first embodiment. Fig. 5 is a sectional view of the spool shaft at the start of screwing of the clutch shaft side clutch plate (at the start of the spool of the spring) according to the second embodiment of the present invention. Fig. 6 is a sectional view of the spool shaft in the operating state of the damper according to the second embodiment. Fig. 7 is a sectional view of the spool shaft when the damper of the second embodiment is extended. Fig. 8 is a front sectional view showing a partial cross section of a third embodiment of the automatic roll screen device of the present invention. Fig. 9 is an enlarged cross-sectional view of the spool shaft in the damper operating state (movement of the moving member with respect to the clutch plate) in the third embodiment. Fig. 10 is an enlarged sectional view of the spool shaft in the operating state of the damper in the third embodiment (the moving member is moving with respect to the clutch plate). Fig. 11 is an enlarged sectional view of the spool shaft in the operating state of the damper (moving member stopped with respect to the clutch plate) in the third embodiment. Fig. 12 is an enlarged sectional view of the spool shaft in a state where the damper of the third embodiment is inoperative. -31-(28) (28) 200419062 Fig. 13 is a front view of a partial section at the start of screwing of the clutch shaft side clutch plate of the fourth embodiment of the present invention (at the start of the screen roll). Illustration. Fig. 14 is an enlarged sectional view of a spool shaft according to the fourth embodiment. Fig. 15 is a front sectional view of a partial cross section of a screen of a one-way clutch mechanism according to a fifth embodiment of the present invention in a fully rolled state. Fig. 16 is a front sectional view of a part of the cross section at the time when the spool shaft side clutch plate of the fifth embodiment is disengaged from the damper side clutch plate. Fig. 17 is a front sectional view of a part of the section at the end of the movement of the clutch shaft side clutch plate (at the end of the screen stretching) in the fifth embodiment. [Explanation of symbols] 1 ... screen frame 2 ... side frame 3 ... upper frame 4 .... lower frame 5 ... side frame 6 .... reel shaft 7 ... screen 8 .... operating frame 9 .... coil spring 1 0 ... Hanging handle 12 ...- bracket-32- (29) (29) 200419062 1 3 ... bracket 14..support member 15..support member 1 6 ... fixed shaft 18. Spring frame 19. Spring frame 25 ... Damper 2 5 a ... Rotary shaft 2 5b ... Linking part 30 ... One-way clutch mechanism 31 ... Clutch plate 3 1 a. .. clutch teeth 32... Clutch plate 3 2 a ... clutch teeth 3 3 ... support shaft 3 3 a ... flange 34 .. spring 40 .. unidirectional clutch mechanism 41 ... clutch Plate 42 .. Clutch plate 43. Support shaft 4 3 a ... Flange 44 .. Screw operation mechanism 45 ... Male thread-33 (30) (30) 200419062 4 6 ... Female thread 47 ... Idling Field 48 ... Spring 49 ... Lock 64 .. Supporting member 6 5 ... Supporting member 66 ... Fixed shaft 66a ... Male thread 66b ... Idle range 67 ... Fixed shaft 6 7a ... Male thread 67b ... .if 6 8 .. · Spring frame (Spring seat) 69..Spring frame 7 5 ... Damper 75 a ... Rotary shaft 75b ... Brake cylinder 75c ... Seal member 75d ... 75e. .. Shaft joint 80.. One-way clutch mechanism 81 ... Clutch plate 8 1 a ... Clutch teeth 82... Clutch member -34 (31) (31) 200419062 84.. Clutch spring 8 5. .. clutch plate 8 5 a ... clutch teeth 85b ... groove 8 5c ... stop 86..moving member 8 6a ... flange portion 86b ... female thread 86c ... convex portion 8 7 ... Screw mechanism 88 ... Spring seat 89 ... Spring 90 ... One-way clutch mechanism 91 ... Clutch disc 9 1 a ... Clutch teeth 92 .. Clutch member 94 .. Clutch spring 95 .. .Clutch plate 9 5 a ... clutch teeth 9 5 b ... female thread 96..moving member 9 6a ... male thread 96c ... groove 97..screw action mechanism-35

Claims (1)

(1) (1) 200419062 Scope of application and patent application 1. An automatic reel-type screen device uses the rotation spring force as the reel of the screen by the return of the coil spring embedded in the reel shaft around the screen. The driving source for the screen is provided with an operation frame for opening and closing operation at the front end of the screen, and an automatic reel-type screen device for opening and closing the screen is produced, which is characterized in that the reel shaft is rotatably supported on a reel box, and The other end of the coil spring fixedly attached to the bracket of one end of the reel box is mounted on a spring frame which is non-rotatably mounted on the reel shaft, and is fixed to the bracket fixed to the reel box. Among the shaft and the reel shaft, among the damper provided with a braking force to the reel shaft, on the fixed shaft, the reel is made to extend the screen in a direction that stretches the screen against the elastic pushing force of the coil spring. When the shaft rotates, the connection between the damper and the reel shaft is cut off. When the reel shaft rotates toward the screen, the damper is installed at least in the middle of the later stage of the reel. One-way clutch mechanism connected between the spool shaft. 2. The automatic reel-type screen device according to item 1 of the scope of patent application, wherein the one-way clutch mechanism is provided with a damper side fixed to a fixed shaft of the reel case through a damper, though The clutch plate and the reel shaft rotate integrally, but are made to slide freely in the axial direction, and the reel shaft side of the support plate of the clutch plate provided on the damper side is rotatably inserted into the support shaft. The clutch plate between the two clutch plates, although the roll shaft is rotated in the direction of extending the screen is not coupled, but the roll -36- (2) (2) 200419062 In the case of shaft rotation, coupling clutch teeth are provided, and the clutch plate on the spool shaft side is provided with the clutch plate on the damper side to push the bomb to the extent that the two clutch teeth chew. 3. The automatic reel-type screen device according to item 1 of the scope of patent application, wherein the one-way clutch mechanism includes a damper side fixed to a fixed shaft of the reel box through a damper, though The clutch plate and the reel shaft rotate integrally with each other, but are made to slide freely in the axial direction, and the reel shaft is connected to the support shaft of the clutch plate provided on the damper side via a screw operation mechanism and connected On the clutch plate on the side, the screw operating mechanism rotates the clutch plate on the reel shaft side to the support shaft, but when the reel shaft is rotated in the direction of extending the screen, the reel is rotated from the above with the rotation. The clutch plate on the damper side is driven away, and when the spool shaft is rotated toward the screen, the mechanism is driven in a direction close to the clutch plate on the damper side. Two clutch plates are provided. These clutch teeth mesh with each other when they abut. 4. The automatic reel-type screen device according to item 3 of the scope of the patent application, wherein the screw action mechanism is a mutual screw between a support shaft provided on the clutch plate on the damper side and the clutch plate on the reel shaft side. Thread. 5. The automatic reel-type screen device according to item 4 of the scope of the patent application, wherein the spiral motion mechanism between the clutch plate on the reel shaft and the support shaft is used to reel the screen from the reel through the reel shaft. From the time when the deceleration of the damper starts when the clutch plates -37- (3) (3) 200419062 are connected to each other, the clutch plate on the drum shaft side can be moved closer to the clutch plate on the damper side. It is drivingly set that when the clutch plate on the reel shaft side is out of the operating range of the screw motion mechanism when the screen is extended on the support shaft, the clutch plate on the reel shaft side is provided to the support shaft. The idling domain where it is idling. 6. The automatic reel-type screen device according to item 5 of the scope of the patent application, wherein the idle field provided on the support shaft has a pushing means for pushing the clutch piece on the side of the reel shaft toward the side of the screw action mechanism. 7. The automatic reel-type screen device according to item 5 or 6 of the scope of the patent application, wherein the standing depth of the supporting shaft of the clutch plate on the damper side is adjusted, thereby making the adjustable damper Action period. 8 · The automatic reel type screen device according to item 1 of the scope of patent application, wherein the one-way clutch mechanism is provided with a damper side fixed to a fixed shaft of the reel case through a damper. The clutch plate and the reel shaft are integrally rotated, but a clutch plate on the reel shaft side that can be slid freely in this axis direction is provided, and a clutch spring that pushes the two clutch plates in a mutually meshing direction is provided. And when the screen is opened and closed and the screen shaft is rotated a certain number of times from the fully reeled state of the screen, the two clutch plates are kept in an engaged state, and thereafter the resistance of the clutch spring's pushing force is used to make the above The time difference actuating means of the clutch that the two clutch plates act in a disengaged manner. 9. The automatic reel-type screen device according to item 8 of the scope of the patent application, wherein the clutch is provided with a clutch plate on the shaft side of the reel-38- (4) (4) 200419062 as the time difference actuating means of the clutch and faces the above. The axis direction of the fixed shaft is made as a movable member that can be relatively moved. Although the clutch plate and the moving member are integrally rotated with the spool shaft, it can be slid freely in the axial direction. A clutch spring is interposed, and the moving member is connected to a fixed shaft via a spiral motion mechanism. The spiral motion mechanism is configured to rotate the spool shaft in a direction to extend the screen, and is started a certain number of times. During the rotation, in a state where the two clutch plates are mutually engaged, the moving member is driven in a direction away from the damper side, and after a certain number of rotations, the clutch on the reel shaft side is made The sheet and the moving member are integrally formed and driven away from the damper side, and the roll shaft is rotated in the direction of being rolled into the screen. In some cases, the clutch plate and the moving member on the spool shaft side are integrally formed and driven in a direction close to the clutch plate on the damper side. During a certain number of rotations after the two clutch plates are engaged with each other, only the above A mechanism that drives the moving member in a direction close to the clutch plate on the damper side. 10. The automatic reel type screen device according to item 9 of the scope of the patent application, wherein the 'helical action mechanism' is a thread provided on a fixed shaft and a moving member to be screwed with each other. 1 1. The automatic reel-type screen device described in item 9 of the scope of patent application 'wherein the' sliding range between the clutch plate on the reel shaft side and the moving member 'is used as the later stage of the reel of the screen Damper action range. 1 2 · The automatic reel type screen device according to any one of items 9 to 11 of the scope of patent application, wherein the fixed shaft -39- (5) 200419062 and the setting provided on the bracket of the reel box A coil spring for a screen reel is provided between the spring holders of the reel shaft, and the rotation of the fixed shaft of the bracket is rotated to produce a coil spring elastic spring force, and the fixed spring is adjusted on the fixed shaft. Among the dampers installed between the shaft and the reel shaft, the spiral motion mechanism between the moving member and the fixed shaft starts from the reel with the screen through the reel shaft to the one where the damper operates through the connection between the clutch plates. At the start of deceleration, the clutch plate on the spool shaft side is drivably set in a direction close to the clutch plate on the damper side. On the fixed shaft, when the clutch plate on the reel side exceeds the operating range of the screw motion mechanism when the screen is extended, an idling area is provided to allow the clutch plate on the reel shaft side to idle against the support shaft. . 1 3 · The automatic reel type screen device described in item 8 of the scope of the patent application, wherein the one-way clutch mechanism includes a clutch plate on the damper side and an integral rotation with the reel shaft, but It can be slid freely in this axis direction, and it is provided with a clutch plate on the spool shaft side with a female thread engraved on the inner periphery. It also has a male thread that is screwed onto the female thread on the outer periphery and faces the fixed shaft. A moving member that can slide freely in the axial direction, but restricts rotation and sliding, and a clutch spring that pushes the moving member toward the damper side. -40-