JP3733567B2 - Shoji shoji drive device for air supply / exhaust opening - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention includes a sheet outlet in the building, relates to a drive device shoji for opening and closing the ventilation opening or the like, in particular該障Ko those of according to Shoji drive flip-up of the supply and exhaust port which is adapted to open and above only splashed by a spring or the like is there.
[0002]
[Prior art]
The windows of buildings, especially high-rise buildings, are constructed so that they cannot be opened or closed from the viewpoint of wind pressure or safety. Structures that naturally ventilate by forming air supply / exhaust openings and ventilation openings are increasing. Such a natural air supply / exhaust device is provided independently near the floor or ceiling of a building, or provided integrally with a window glass sash. The sash type is currently the mainstream, and a shoji with a small depth is provided to open and close the air supply / exhaust port (ventilation port) formed in the lower frame of the sash, and when not in use, the shoji is closed with an appropriate locking device It is formed in such a way as to open the air supply / exhaust port by lifting the shoji with an appropriate spring by removing the lock device during ventilation and removing the lock device.
[0003]
Usually, the above-mentioned shoji is fitted to a shaft portion formed in the opening frame with a fitting groove provided along one side and is rotatably attached to the frame, and a drive arm is attached to the end surface side. It is configured to spring up by drive means such as a spring. At this time, the drive arm is often pivotally mounted with pins or the like at both ends of the shoji so that it can rotate freely. It sometimes stopped working.
[0004]
For example, when the operation of the drive means provided at both ends of the shoji is not synchronized, or the shaft core of the fitting groove of the shoji and the shaft core of the opening frame are structurally problematic, etc. Even if they match, if the shift gradually occurs, the shoji may not be able to jump up or the shoji may come off. In addition, such a hindrance increases as the shoji springs up because the position of the axis of the shoji when rotating and the position of the rotation shaft of the driving means are separated from each other. Many of the shojis have an axial core extending across the width of the shoji, so that warping of the axial core has been a bigger problem.
[0005]
[Problems to be solved by the invention]
The problem to be solved by the present invention is that, as described above, in the flip-up shoji drive device that opens and closes the shoji provided at the air supply / exhaust port and the ventilation port via the drive arm, the drive device provided on both sides of the shoji is not synchronized or the shoji An object of the present invention is to provide a flip-up shoji drive device that can open and close the shoji smoothly even if a shaft of the drive device or the like is crushed and that the shoji and the drive device are not separated.
[0006]
[Means for Solving the Problems]
According to the present invention, a shoji that is pivotably mounted by fitting a fitting groove into a shaft portion provided in the opening frame of the sash and that opens and closes the air supply / exhaust port, and a tip is slidable on the lower surface of the shoji A drive arm that contacts the base end of the drive arm, and a drive mechanism that drives the air supply / exhaust opening that includes a drive shaft that is connected to the base end of the drive arm and is biased by a spring member so as to rotate in the opening direction of the shoji through the drive arm A device is provided, and the drive arm is not attached to the shoji and is in a free state with respect to the shoji. The shoji can be opened and closed without any problem, and the shoji and the driving arm are not separated by linking the shoji and the driving arm with a pin, so that the above-mentioned problem can be solved.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 showing an embodiment of the present invention, a shoji (2) is pivotally mounted on the upper surface of an opening frame (1) such as a lower frame of a sash so as to be able to be lifted up. As shown in FIG. 1A, when the shoji is in a substantially horizontal position along the upper surface of the frame (1), the shoji (2) is connected to an air supply / exhaust port (3) that leads to an outdoor circulation hole (not shown). Is closed and held in that position by a suitable locking device (not shown). Further, when the locking device is removed, it is flipped up by driving means as described later, and the air supply / exhaust port (3) is opened as shown in FIG.
[0008]
The shoji (2) has a fitting groove (4) provided along one side, and the fitting groove is fitted to a shaft part (5) provided in the opening frame (1) to be pivoted. It is worn. As shown in FIG. 1, the shaft portion (5) is formed in a substantially circular cross section, and the fitting groove (4) is also formed in a substantially circular cross section corresponding thereto. It is also possible to form a simple structure (not shown) that is formed in a semicircular cross section, and the fitting groove (4) is also formed in a substantially semicircular cross section corresponding thereto so that the shoji can be easily fitted.
[0009]
Long grooves (6) are formed on both end faces of the shoji (2). The long groove (6) can be provided directly on the shoji end plate (7) screwed to the end face of the shoji (2). In the embodiment, the long groove (6) is fixed to the shoji end plate (7) with the screw (8). It is provided on the received metal fitting (9).
[0010]
As shown in FIG. 3, the metal fitting (9) has leg pieces (11), (11) on both sides of the face plate portion (10) in which the long groove (6) is formed, and the shoji end plate (7 ), A gap is formed between the end plate of the shoji plate (7) and the tip of the pin which will be described later. In addition, a flange (13) is formed above the face plate (10) so as to be substantially inscribed in the upper face plate (12) of the shoji (2), but between the upper face plate (12). There may be a gap or the flange may be omitted.
[0011]
The tip of the drive arm (14) is slidably in contact with the lower surface of the shoji (2). A pin (15) is provided at the tip, and the pin (15) is loosely fitted in the long groove (6) so as to link the shoji and the drive arm in a free state, and the end portions (16a), (16b) ) Is relatively movable to the position corresponding to. The outer diameter of the pin (15) is smaller than the width of the long groove (6), and the long groove (6) facing the upper and lower surfaces of the pin (15) as shown in FIG. 1 (B). A gap (S) is formed between the long edges (17) and (17). This gap allows the pin to move in the long groove without any hindrance and maintain the linkage state even if the shaft core is cracked. Although the said long groove (6) is formed in linear form, it can also be formed in the appropriate | suitable shape according to the locus | trajectory at the time of a pin moving so that it may mention later.
[0012]
Since the above-mentioned shoji is often made of aluminum, friction and noise may occur when the tip of the drive arm slides directly on the lower surface of the shoji. Therefore, a roller (18) is rotatably fitted to the pin (15) at the tip of the drive arm (14), and the roller (18) is transferred to the flange (13) of the receiving bracket (9). The tip of the drive arm does not touch the shoji directly. If no support is used or there is no flange, the roller may be in direct contact with the top plate (12) of the shoji (2). A roller can also be used.
[0013]
The base end (19) of the drive arm (14) is fixed to the drive shaft (21) of the drive device body (20) in a non-rotating state by a stop shaft (22) or the like. The apparatus main body (20) is attached to the sash frame (1) by a mounting bracket (23), and the drive shaft (21) is rotated to open the shoji (2) through the drive arm (14). ) Can be formed in an appropriate mechanism.
[0014]
4 to 6 show an example of the apparatus main body (20). The apparatus main body (20) includes a base (24) and a cover case (26) fixed to the base (24) with screws (25). In the cover case (26), a spring member (27) for urging the drive shaft (21) in the direction in which the shoji (2) opens is provided. In FIG. 4, the spring member (27) uses a spring spring having one end fixed to the drive shaft (21) and the other end fixed to the cover case (26), but a coil spring or the like is used. It is also possible to urge the drive shaft in the rotational direction with this type of spring, so that the torque when opening and closing the shoji can be made substantially constant. In the cover case (26), a bearing (28) and a stopper piece (29) of the drive shaft (21) are provided, and a bearing (28) is also provided on the base (24). Since the spring member (27) is set in a state in which a restoring force is accumulated so as to rotate the drive shaft (21), the drive arm and the spring member (27) are attached before attaching the apparatus body (20) to the sash frame. It is preferable to hold the drive shaft (21) so as not to rotate. This holding is performed by forming a protruding seat (30) on the cover case (26) and providing a detachable detent pin (31), and inserting the detent pin (31) with the restoring force accumulated in the spring member. Thus, the rotation of the drive arm is prevented.
[0015]
By the spiral spring or a coil spring for biasing the drive shaft (21), the predetermined rotational force to open the always shoji direction acts, the rotation of the drive shaft so that the sliding door is not rapidly rotating braking fluid resistance mechanisms that have been provided. Further, this braking, when closing the sliding door is that not the fluid resistance mechanism to allow easy closure is configured to not operate. That is, when the drive shaft rotates in the direction to open the shoji by the restoring force of the spring member, the fluid resistance mechanism acts, and when the drive shaft rotates in the closing direction, the fluid resistance mechanism does not act. one-way clutch for intermittently connecting the that provided. The one-way clutch, in order to reduce the size of thin overall, are built into the fluid resistance mechanism.
[0016]
Viscous the fluid resistance mechanism, as shown in FIGS. 4 to 6, which is formed resistive chamber enclosing a viscous fluid such as silicon oil to the base (24) to (32) was supplied from an inlet (not shown) A partition plate (33), an oil seal (34) and the like are provided so that fluid does not flow out. In the resistance chamber (32), two resistor plates (35) and (35) arranged at a distance from each other and fixed to the periphery of the resistor plates (35) and (35) with a connecting pin (36) A resistor (38) having an annular locking plate (37) is provided, and the outer surface of the resistor (38) is close to the inner surface of the resistance chamber with a minute gap, whereby the resistor is viscous. It can rotate under the resistance of fluid. The resistor may be integrally formed as a whole, or one or three or more resistor plates may be formed.
[0017]
A rotating plate (39) fixed to the drive shaft (21) by press-fitting or the like is provided adjacent to the resistor, and a control roller (40) is provided between the rotating plate (39) and the resistor (38). )... Are provided. The control roller (40) is pressed against the resistor (38) when the rotating plate (39) rotates in the direction to open the shoji, that is, in the direction of the arrow (41) in FIG. Is rotated in the direction of arrow (42), and when the rotary plate (39) rotates in the direction of closing the shoji, that is, in the direction of arrow (43) in FIG. 5, the crimping is released and the resistor (38) is released. Is provided so as not to be driven and rotated.
[0018]
Two or more control rollers (40) can be provided so as to achieve the above-described action. As shown in FIG. 5, the engagement of the resistor (38) surrounding the outer periphery of the rotating plate (39) is possible. When the annular locking surface portion (44) is formed on the inner peripheral surface of the stop plate (37), the bottom surface (45) formed on the outer periphery of the rotating plate (39) is fitted into the inclined guide groove (46). Thus, it is in rolling contact with the locking surface portion (44). When the resistor is composed of a single resistor plate without forming the locking plate, an arcuate guide groove whose depth varies in the circumferential direction is formed on the side surface of the rotating plate, and a control roller is formed in the guide groove. May be inserted and crimped to the side surface of the resistance plate. In addition, an appropriate elastic member may be provided in the guide groove so that the control roller is securely crimped, and the control roller may be urged.
[0019]
Since the resistor (38) faces the inner surface of the resistance chamber (32) with a narrow gap in the resistance chamber (32) so as to generate fluid resistance, the viscous fluid may not be sufficiently injected into the resistance chamber. . Therefore, as shown in FIG. 5, a recess (47) for oil sump is formed on the outer periphery of the resistor (38), or an oil hole (48) is formed on the resistor plate (35) so as to promote oil circulation. It is provided. The gap between the rotating plate (39) and the resistor plate (35) is formed larger than the gap between the outer surface of the resistor plate and the inner surface of the resistor chamber. Are formed with gap protrusions (49) for maintaining a distance from the rotating plate (39). The gap protrusions (49) may be formed on the rotating plate (39) side, or may be formed dispersedly on both the resistance plate (35) and the rotating plate (39). When the recess (47) is formed on the periphery of the resistor (38) as described above, when the resistor rotates, the oil is agitated in the resistor chamber and immediately distributed uniformly in the resistor chamber. The braking action by (38) is stabilized from the beginning, and the rotation of the rotating plate can be smoothly braked.
[0020]
Thus, when the locking device that holds the shoji (2) in the closed position is released, the spring member (27) passes through the drive shaft (21), the drive arm (14), the roller (18), etc. Since the shoji (2) is urged in the opening direction, it springs up and the air supply / exhaust port (3) is opened. At this time, if a fluid resistance mechanism is provided as described above, the rotation of the drive shaft (21) is braked and the shoji is gradually opened. The roller (18) rolls on the surface of the flange (13) and the pin (15) moves in the long groove (6). This movement is applied to the terminal (16b) of the long groove (6). ) Is stopped at the part hit, and the jumping angle (θ) of the shoji (2) is regulated by the position at this time. Therefore, the sliding stop angle (θ) of the shoji can be changed by changing the distance between the pin and the end portion, and the rising process can be changed by determining the shape of the long groove according to the application. it can.
[0021]
Since the said shoji (2) is provided in the indoor side, when closing, the upper surface of this shoji (2) should just be pushed down by hand etc. FIG. At this time, the spring member (27) is caught by the movement of the shoji (2) and the restoring force is stored. In addition, when the one-way clutch is provided as described above, the fluid resistance mechanism does not operate when closing the shoji by the action of the one-way clutch, so that the shoji can be easily closed without causing fluid resistance.
[0022]
【The invention's effect】
The present invention is configured as described above, and the front end of the drive arm is slidably brought into contact with the lower surface of the shoji having a fitting groove fitted to the shaft portion provided in the opening frame, and the base end of the drive arm is Since it is connected to the drive shaft urged by the spring member so as to rotate in the opening direction, the shoji can be lifted through the drive arm by the rotation of the drive shaft, and the drive arm is brought into contact with the shoji. Since it was made to open, the drive arm is not pivotally attached to the shoji and can be freed against the shoji, so even if a drive device is provided at both ends of the shoji, each drive arm can operate separately, Even if the drive arms on both sides become out of sync, or the conical shafts at various places are crumpled, the shoji can be opened and closed reliably.
[0023]
In addition, since the drive arm and the shoji are always linked in a free state by loosely fitting a pin provided on the drive arm into the long groove of the shoji, the shoji does not leave the pin without permission. The sliding angle of the shoji can be limited by the position of the end of the long groove.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention, and (A) is an explanatory view when a shoji is closed. (B) Explanatory drawing when a shoji screen pops up.
FIG. 2 is a front view of a state in which the shoji is closed.
FIG. 3 is an exploded perspective view.
FIG. 4 is a half sectional view of a drive device main body.
FIG. 5 is an enlarged cross-sectional view taken along line AA in FIG.
6 is an enlarged view of the resistance chamber portion of FIG. 4;
[Explanation of symbols]
2 ... Shoji 4 ... Fitting groove 5 ... Shaft 6 ... Long groove 9 ... Receptacle
14 ... Drive arm
15 ... pin
18… Kolo
20 ... Main unit
21 ... Drive shaft
27… Spring member

Claims (4)

  A pin that is rotatably fitted with a shoji that is pivotably mounted by fitting a fitting groove on a shaft portion provided in the opening frame of the sash and that opens and closes the air supply / exhaust port, and a roller that is in contact with the lower surface of the shoji. A driving arm having a front end of the pin, a long groove having a long edge facing the upper and lower surfaces of the pin with a space therebetween, and provided on the end surface of the shoji so that the pin is loosely fitted in the free state, and the driving arm And a drive shaft provided in the apparatus main body so as to rotate in a direction to open the shoji through the drive arm and in a direction to open the shoji through the drive arm provided in the apparatus main body. A spring member having one end fastened to the apparatus main body and the other end fastened to the drive shaft so as to bias the rotation of the drive shaft, a resistance chamber provided in the apparatus main body and enclosing a viscous fluid, Resistor that can be rotated by receiving the resistance of viscous fluid. And a one-way clutch provided between the drive shaft and the resistor so that the resistor is driven to rotate when the driving shaft rotates in a direction to open the shoji and the resistor is not driven to rotate when the driving shaft rotates in a closing direction. A shoji drive device for raising and lowering the air supply / exhaust port.   The apparatus for driving a raising / lowering shoji of the air supply / exhaust port according to claim 1, wherein the shoji has a receiving metal fitting on an end face, and the long metal groove is formed in the receiving metal fitting.   3. The air supply / exhaust port shovel drive device according to claim 2, wherein the receiving metal fitting is provided with a flange so that the roller is in contact with the roller.   4. The raising / lowering shoji drive device for an air supply / exhaust port according to claim 2, wherein the receiving metal fitting has a leg piece so as to form a gap between a tip of the pin loosely fitted in the long groove and an end face of the shoji.

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