JP4192312B2 - Window opening and closing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention normally closes the shoji by winding the wire around the take-up drum by normally rotating the take-up drum to which one end of the wire connected to the shoji biased in the opening direction is fixed. The present invention relates to a window opening / closing operation device in which a wire is drawn out from a take-up drum by reversing the take-up drum based on the opening biasing force to open the shoji.
[0002]
[Problems to be solved by the invention]
As a window opening / closing operation device, there is one described in Japanese Utility Model Publication No. 6-13982. However, in the window opening / closing operation device described in this publication, a two-wheel engagement device which engages with a ratchet wheel formed on a winding drum. When one of the claw members is provided and the wire is wound around the take-up drum, one of the claw members is engaged with the ratchet wheel to prohibit (lock) the reverse rotation of the take-up drum, and the wire is removed from the take-up drum. When unwinding, the one claw member and the ratchet wheel are disengaged by operating the push button, and the other claw member is engaged with the ratchet wheel. The push button is automatically returned by the engagement between the claw member and the ratchet wheel.
[0003]
By the way, in the window opening / closing operation device described in the publication, since the other claw member is pushed out from the latching teeth of the ratchet wheel by the rotation of the ratchet wheel, the push button is automatically restored. If the friction between the member and the latching tooth of the ratchet wheel is large, the push button may not be automatically restored, and the engagement angle between the other pawl member and the ratchet wheel locking tooth If it is not shallow, it will be difficult to push out the other claw member from the locking teeth of the ratchet wheel, and the other claw member will become a tension member against the rotation of the ratchet wheel. There may be a case where the automatic return cannot be performed smoothly and reliably.
[0004]
In addition, since the two claw members are provided, the structure becomes complicated, and the locking teeth of the two claw members and the ratchet wheel must be designed and adjusted so as not to cause the above disadvantages. May be up.
[0005]
Further, in the window opening / closing operation device described in the publication, since the operation handle is detachable, there is a case where the shoji cannot be closed due to loss of the operation handle or the like, which is not so practical.
[0006]
The present invention has been made in view of the above-described points, and an object of the present invention is to provide a window opening / closing operation device capable of smoothly operating the push button as well as automatically returning the push button. There is to do.
[0007]
Another object of the present invention is to provide a window opening / closing operation device that does not cause loss of the operation handle and can automatically release the connection between the operation handle and the winding drum by folding the operation handle. Is to provide.
[0008]
[Means for Solving the Problems]
In the window opening / closing operation device according to the first aspect of the present invention, the wire is turned into the winding drum by normally rotating the winding drum to which one end of the wire connected to the shoji urged in the opening direction is fixed. A window opening / closing operation device which closes the shoji and winds the wire from the take-up drum by reversing the take-up drum based on the opening biasing force to the shoji to open the shoji. A prohibiting means for prohibiting reverse rotation and a releasing means for canceling the prohibition of reverse rotation of the prohibiting means. The prohibiting means includes a claw member that engages with teeth formed on the outer peripheral portion of the winding drum, A swingable swinging member provided with a claw member and having a notch, and one swinging of the swinging member via the claw member due to the rotation of the take-up drum are swung at the notch. By engaging the member It has and a roller to stop, releasing means, arranged such that the manually operable from the outside, is provided with a push button to disengage from the notches of the roller by a manual operation.
[0009]
In the window opening / closing operation device according to the first aspect of the present invention, since the prohibiting means includes a roller that engages the swinging member, the operation of the push button for releasing the prohibition in the prohibiting means and the operation of the push button Since the automatic return can be performed smoothly and the rotation of the take-up drum is transmitted to the swinging member through the single claw member even in the automatic return, the above action is combined. As a result, the push button can be automatically restored smoothly, and design and adjustment can be easily performed.
[0010]
In the window opening / closing operation device according to the second aspect of the present invention, in the window opening / closing operation device according to the first aspect, the prohibiting means further includes elastic means for elastically urging the swinging member in one swinging direction. The swinging member is urged by the elastic means so as to swing so that the engagement between the claw member and the teeth is intermittently released when the winding drum is rotated forward. It has become.
[0011]
According to the window opening / closing operation device of the second aspect, since the engagement between the claw member and the teeth is intermittently released during the normal rotation of the winding drum, the normal rotation of the winding drum is performed. Even if the operation is temporarily stopped, the prohibiting means can be operated immediately, and a fail-safe window opening / closing operation device can be obtained.
[0012]
In the window opening / closing operation device according to the third aspect of the present invention, in the window opening / closing operation device according to the first or second aspect, the claw member swings on the swing member concentrically with the swing axis of the swing member. The prohibiting means further includes other elastic means for elastically urging the claw member with respect to the swinging member in the other swinging direction opposite to the one swinging direction. The claw member is swung by other elastic means with respect to the swinging member so that the engagement between the claw member and the teeth is intermittently released when the winding drum is reversed. It has become.
[0013]
According to the window opening / closing operation device of the third aspect, since the engagement between the pawl member and the teeth can be secured immediately after the shoji is opened, the automatic return of the push button is immediately performed if the winding drum is rotated forward. It can be carried out.
[0014]
In the window opening / closing operation device according to the fourth aspect of the present invention, in the window opening / closing operation device according to any one of the above aspects, the roller defines a notch when the reverse rotation of the winding drum is prohibited. It is rotatably attached to the push button so that its rotatable outer peripheral surface is in contact with one wall of the swing member.
[0015]
In the window opening / closing operation device according to the fourth aspect, even if the shaft is fixed to the push button and the roller is rotatably attached to the shaft, the shaft is rotatably attached to the push button instead. In any case, the roller may be rotatably attached so that the rotatable outer peripheral surface is in contact with one wall of the swinging member defining the notch. You can do it.
[0016]
In the window opening / closing operation device according to the fifth aspect of the present invention, in the window opening / closing operation device according to any one of the above aspects, the swinging member is configured such that the roller is detached from the notch and the winding drum can be reversed. And a wall that prevents contact between the roller and a certain amount of rocking to ensure re-engagement between the claw member and the teeth in the forward rotation after the reverse rotation of the take-up drum. Yes.
[0017]
The window opening / closing operation device according to the sixth aspect of the present invention is the window opening / closing operation device according to any one of the above aspects, further comprising braking means for suppressing the rotation speed of the winding drum in reverse rotation of the winding drum. .
[0018]
According to the window opening / closing operation device of the sixth aspect, by providing such a braking means, the opening of the shoji can be controlled at a controlled speed, and a collision with the stopper member at the maximum opening of the shoji can be avoided, Damage to the shoji, its glass, and the stopper member can be preferably prevented.
[0019]
According to a seventh aspect of the present invention, in the window opening / closing operation device according to any one of the above aspects, the window opening / closing operation device further includes a rotating means for rotating the winding drum, and the rotating means is foldable. When the operation handle and the operation handle are unfolded, the rotation of the operation handle is engaged with the rotation shaft of the take-up drum so that the rotation of the operation handle can be transmitted to the rotation shaft of the take-up drum. In this case, a rotation transmitting means with automatic release for releasing the engagement of the take-up drum with the rotary shaft portion is provided.
[0020]
According to the window opening / closing operation device of the seventh aspect, since the foldable operation handle is provided, the operation handle is not lost and the rotation transmitting means with automatic release is provided. Therefore, the rotation of the operation handle can be preferably avoided during the reverse rotation of the winding drum.
[0021]
In the window opening / closing operation device according to the eighth aspect of the present invention, in the window opening / closing operation device according to the sixth or seventh aspect, the operation handle is rotatable at one end around the rotating shaft portion of the winding drum. The handle base, which is disposed at the other end of the handle base, has a handle part hinged to one end, and a gripping part attached to the other end of the handle part. The rotation transmitting means includes a concavo-convex portion formed on the rotating shaft portion of the take-up drum, a slide body that is slidably disposed on the handle base, and has a convex portion that can be engaged with the concavo-convex portion, and a convex portion The elastic engagement release means for elastically urging the slide body in a direction to release the engagement with the concavo-convex portion, and one end portion of the handle portion, the slide body when the operation handle is unfolded To engage the convex part with the concave and convex part And it includes a cam surface for sliding the slide member against the elastic force of the elastic disengaging means direction.
[0022]
According to the window opening / closing operation device of the eighth aspect, the window base opening / closing operation having a compact operation handle can be substantially accommodated in the handle base with the rotation transmitting means with automatic release, the thickness of the folded operation handle can be reduced. Equipment can be provided.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Next, the present invention and its embodiments will be described in more detail with reference to preferred examples shown in the drawings. The present invention is not limited to this example.
[0024]
【Example】
1 to 7, the window opening / closing operation device 1 of the present example is configured such that a winding drum 6 to which one end 5 of a wire 4 connected to a shoji 3 urged by a gas stay 2 is fixed in an opening direction is fixed. The winding drum 6 is closed by rolling the wire 4 around the winding drum 6 by rotating, that is, rotating in the F direction, and closing the shoji 3 by the urging force for the shoji 3 based on the gas pressure of the gas stay 2 and the dead weight of the shoji 3. The paper 4 is unwound from the take-up drum 6 by reversing the rotation 6, that is, rotating in the R direction, thereby opening the shoji 3.
[0025]
In this example, the opening urging force to the shoji 3 is given by the gas pressure of the gas stay 2 and the dead weight of the shoji 3, but instead, it may be given only by the dead weight of the shoji 3. You may give by a spring or a coil spring.
[0026]
Each gas stay 2 is arranged between the frame 11 of the shoji 3 and the window frame 12, and always urges each shoji 3 in the opening direction by its gas pressure. A pulley 14 is attached to each of the shoji 3 and the window frame 12 pivotally supported at one end to the window frame 12 of the smoke exhaust window 13 including the shoji 3 and the window frame 12. The wire 4 having 15 fixed to the window frame 12 is routed through each pulley 14.
[0027]
The window opening / closing operation device 1 arranged on the wall surface below the smoke exhausting window 13 so that it can be manually operated includes the winding drum 6, the rotating means 21 for rotating the winding drum 6, and the winding drum. The prohibiting means 22 for prohibiting the reverse rotation of the winding means, the releasing means 23 for releasing the prohibition of the reverse rotation of the prohibiting means 22, the braking means 24 for suppressing the rotational speed of the winding drum 6 in the reverse rotation of the winding drum 6, and the smoke exhaust window 13 The base 25 is fixed to the lower wall surface with screws or the like, the intermediate board 27 attached to the base 25 with screws 26 or the like, the drum 6, the prohibiting means 22, the intermediate board 27, etc. 25, and a decorative cover 28 having through holes 29 and 30.
[0028]
The winding drum 6 includes a drum body 34 integrally having a hollow shaft portion 31, a hollow toothed flange portion 32, and a bottomed hollow winding portion 33, and a bottomed hollow winding portion 33 of the drum body 34 by screws 35. It is fixed, and includes a toothed flange portion 36 and a driving body 39 integrally having a rotary shaft portion 37 having a gear portion 38 formed at one end thereof. It is slidably in contact with the inner peripheral surface 42 of the cylindrical protrusion 41 and is supported rotatably around the axis 43 by the protrusion 41 as a bearing. Each of 36 and the gear part 38 is provided with teeth 44, 45 and 46 on its outer peripheral part.
[0029]
The take-up drum 6 winds the wire 4 having one end 5 fixed thereto around the shaft center 43 around the hollow take-up portion 33 with a bottom, and the release means 23 actuates the shaft center. The wire 4 wound around the hollow winding portion 33 is fed out by rotation in the R direction opposite to the F direction around 43.
[0030]
The prohibiting means 22 includes a claw member 51 that engages with a tooth 44 formed on the outer peripheral portion of the hollow toothed flange 32 of the winding drum 6, a claw member 51, and a notch 52. The swinging member 53 swingable in the A and B directions around the swinging axis 55 and the swinging member 53 swinging in the A direction by engaging the swinging member 53 with the notch 52. And a roller 54 for preventing the above.
[0031]
The oscillating member 53 includes a semi-disc-like oscillating member main body 61 and a plate 63 having a notch 52 and fixed to the oscillating member main body 61 with screws 62. The swing member main body 61 and the plate body 63 together with the member 51 are swingable in the A and B directions around the shaft 64, that is, around the swing axis 55, around the shaft 64 implanted in the base 25. It is supported and attached via a screw 65 screwed onto the shaft 64. The cutout portion 52 is formed in the plate body 63 over an angle range of about 45 ° in the swinging direction of the swinging member 53, and accordingly, in the swinging direction of the plate body 63 that defines the notch portion 52. The walls 66 and 67 are opposed at an angle of about 45 °.
[0032]
One flat surface 68 of the swinging member main body 61 in the swinging direction of the swinging member 53 is arranged flush with the wall 67, and the claw member 51 and the teeth 44 are rotated in the forward rotation after the winding drum 6 is rotated backward. The other flat surface 69 as a wall that guarantees re-engagement with the flat member 68 is spaced apart from the flat surface 68 by about 180 ° in the swinging direction of the swinging member 53. A groove 70 is further formed in the swing member main body 61. The groove 70 is in contact with the claw member 51 and elastically biases the claw member 51 against the swing member 53 in the B direction. A coil spring 71 is provided as an elastic means.
[0033]
The claw member 51 urged in the B direction by the coil spring 71 is supported on a shaft 64 penetrating the claw member 51 so as to be swingable in the A and B directions, and is also supported with respect to the swing member main body 61 itself. Even so, it is loosely fitted in the recess 72 of the swing member main body 61 so that it can swing somewhat in the A and B directions, and the tip 73 of the claw member 51 protrudes from the swing member main body 61, The teeth 44 are engaged.
[0034]
One end 76 of the swinging member 53 is locked to the protruding base 75 of the base 25, the intermediate portion 77 is wound around the large-diameter lower portion 78 of the shaft 64, and the other end 79 is attached to the flat surface 68 of the swinging member main body 61. It is always urged in the A direction by a torsion coil spring 80 as an engaged elastic means.
[0035]
The roller 54 is rotatably attached to the shaft 86 via a screw 85, and when the reverse rotation of the winding drum 6, that is, the rotation in the R direction is prohibited, a plate body that defines the notch 52. The rotatable outer peripheral surface is in contact with one wall 66 of 63.
[0036]
The release means 23 is arranged so as to be manually operable from the outside, and includes a push button 91 that causes the roller 54 to be detached from the notch 52 by manual operation, and a holding body 92 that slidably holds the push button 91. And a coil spring 93 as elastic means for returning the push button 91 to the original position.
[0037]
The push button 91 is fitted to the button main body 94, the button cover 95 fitted to the button main body 94 and disposed in the through hole 29, and the shaft attached to the button main body 94 to rotatably support the roller 54. 86, and the button body 94 has a collar portion 96 at its lower end engaged with a step portion 97 on the inner peripheral surface of the holding body 92 so as not to jump out of the holding body 92. The holding body 92 is fixed to the base 25 with a screw 98, and one end of the coil spring 93 is in contact with the button main body 94 in the bottomed hole 99 of the button main body 94 and the other end is in contact with the base 25. The button body 94 is elastically biased so as to return the push button 91 to the original position.
[0038]
When the button cover 95 is manually pushed against the elastic force of the coil spring 93 and the button body 94 is further inserted into the holding body 92 while the coil spring 93 is contracted, The contact with the wall 66 is released, the roller 54 is detached from the notch 52, and the swinging member 53 can be swung in the A direction. Enables rotation.
[0039]
The rotating means 21 is a foldable operation handle 101. When the operation handle 101 is released from folding as shown in FIGS. 1, 2, and 8, the rotation means 21 rotates the rotation of the operation handle 101. When the operating handle 101 is folded as shown in FIGS. 5 and 6, the rotary shaft portion of the take-up drum 6 is engaged with the rotary shaft portion 37 of the take-up drum 6 so as to be transmitted to the portion 37. 37, and a rotation transmission means 102 with automatic release for releasing the engagement with the motor 37.
[0040]
The operation handle 101 has a cylindrical base end portion 111 and a handle base portion 112 arranged to be rotatable around the rotation shaft portion 37 of the take-up drum 6, and another end portion 113 of the handle base portion 112. 114 includes a handle portion 116 that is hinged via a hinge mechanism 115 and a grip portion 118 that is rotatably or fixedly attached to the other end portion 117 of the handle portion 116.
[0041]
The handle base 112 is integrally provided with the cylindrical one end 111, a plate-like intermediate portion 122 formed with a slit 121, and the other end 113 formed in a massively bifurcated shape. One end portion 111 is arranged in a circular gap between the cylindrical portion 123 of the intermediate substrate 27 that penetrates the through hole 30 and the rotary shaft portion 37 of the take-up drum 6 via hooked cylindrical slide bearings 124 and 125. Thus, it can be freely rotated in the F and R directions around the axis 43 of the rotary shaft portion 37.
[0042]
The handle portion 116 integrally has the one end portion 114 formed in a huge amount, and is formed from a plate body.
[0043]
The hinge mechanism 115 includes a shaft 126 penetrating the other end portion 113 formed in an enormously bifurcated shape and one end portion 114 disposed between the other end portions 113, and the handle base portion 112 and the handle portion 116 can be folded freely. It is linked to.
[0044]
The rotation transmission means 102 with automatic release is slidably disposed in the C and D directions in the teeth 46 as the concavo-convex portions formed on the rotation shaft portion 37 of the winding drum 6 and the slit 121 of the handle base portion 112, A claw 131 as a convex part that engages with the teeth 46 is integrally provided, and a slide member 132 having a slit 141 at the center and a slide so as to release the engagement of the claw 131 with the teeth 46. An elastic disengagement means 133 that elastically urges the body 132 in the D direction and one end 114 of the handle portion 116 are formed so as to abut against the slide body 132 when the operation handle 101 is unfolded. And a cam surface 134 that slides the slide body 132 in the C direction against the elastic force of the elastic disengagement release means 133 so as to engage the claw 131 with the tooth 46.
[0045]
The elastic engagement releasing means 133 has a coil spring 142 as elastic means arranged in the slit 141, and a bent locking portion 144 attached to the intermediate portion 122 of the handle base 112 via a screw 143. The locking portion 144 includes a locking plate 145 that locks one end of the coil spring 142, and the coil spring 142 abuts the slide body 132 at the other end to cause the slide body 132 to move. It is energized in the D direction.
[0046]
The cam surface 134 is composed of an outer peripheral surface of one end 114 of the handle portion 116 that abuts one end of the slide body 132. When the operation handle 101 is folded, the cam surface 134 is moved in the D direction by the elastic force of the coil spring 142. When sliding is allowed and the folding of the operation handle 101 is sequentially released, the slide body 132 is sequentially slid in the C direction against the elastic force of the coil spring 142, and the claw 131 is directed toward the teeth 46. To protrude.
[0047]
When the operation handle 101 is folded, as shown in FIGS. 5 and 6, the grip portion 118 is arranged in parallel to the lower surface 151 of the decorative cover 28.
[0048]
The rotating means 21 rotates the winding drum 6 in the F direction through the engagement of the claw 131 with the tooth 46 when the operation handle 101 is rotated in the F direction in a state where the folding is released. ing. When the take-up drum 6 is rotated in the F direction, the swinging member 53 is swung in the B direction by the engagement of the teeth 44 and the claw member 51, and thereafter, as shown in FIG. The swinging member 53 is swung by the elastic force of the coil spring 80 and the rotation of the take-up drum 6 in the F direction so that the engagement between the teeth and the teeth 44 is intermittently released.
[0049]
The braking means 24 integrally has a gear 161 rotatably supported on the intermediate board 27 so as to mesh with the teeth 45 of the flange portion 36 and a pinion 162 meshed with the gear 161, and has an intermediate portion at one end 163. A shaft member 165 rotatably supported on the base 25 at the other end 164 on the substrate 27 and a plurality of protrusions 166 formed to project from the shaft member 165 in the radial direction are movable in the radial direction. The mounted brake member 167 and a garter spring which is mounted in the groove 168 on the outer periphery of each brake member 167 and surrounds each brake member 167 and elastically biases each brake member 167 toward the shaft member 165 169 and a cylindrical portion 170 formed integrally with the base 25, and each braking member 167 is disposed so as to be surrounded by the cylindrical portion 170.
[0050]
The braking means 24 applies a centrifugal force to the braking member 167 when the shaft member 165 is rotated via the pinion 162 by the rotation of the gear 161, and the braking member 167 is caused to move the braking member 167 by a garter spring with a certain magnitude or more. The outer peripheral surface of the braking member 167 is moved in the radial direction against the elastic force of 169, and the outer peripheral surface of the braking member 167 is brought into frictional contact with the inner peripheral surface of the cylindrical portion 170, so that the braking member 167 rotates, that is, the gear 161 rotates. It is designed to give braking.
[0051]
By this braking action of the braking means 24, the rotational speed of the winding drum 6 in the reverse rotation is suppressed to prevent the shoji 3 from colliding with the window frame 12.
[0052]
In the window opening / closing operation device 1 described above, when the operation handle 101 is rotated in the F direction in a state where the folding is released, when the winding drum 6 is also rotated in the F direction, the teeth 44 and the claw member 51 By the engagement, the swing member 53 is swung in the B direction, and as a result of this swing, the engagement between the teeth 44 and the claw member 51 is released, and thereafter, the operation handle 101 continues in the F direction. As a result of the rotation of the winding drum 6 in the F direction so that the engagement between the teeth 44 and the claw member 51 is intermittently released by the rotation, the wire 4 is wound around the winding drum 6. Thus, the shoji 3 can be closed against the gas pressure of the gas stay 2 or the like.
[0053]
When the application of the rotational force in the F direction to the operation handle 101 is stopped after the complete closing or during the closing, the winding drum 6 is slightly rotated in the R direction and the teeth 44 are engaged with the claw member 51. The swinging member 53 is swung in the A direction, and the wall 66 of the swinging member 53 comes into contact with the roller 54, thereby preventing the swinging member 53 from swinging in the A direction. Engagement with the member 51 is ensured, and then the rotation of the winding drum 6 in the R direction is prevented, so that the shoji 3 is fully closed or half-opened.
[0054]
Further, in the window opening / closing operation device 1, when the button cover 95 is pressed with the operation handle 101 released from folding, the contact of the wall 66 with the roller 54 is released as shown in FIG. The member 53 can swing in the A direction, and the swinging member 53 is engaged with the teeth 44 and the claw member 51 by the slight rotation of the winding drum 6 in the R direction due to the gas pressure of the gas stay 2 via the wire 4. In the same way, it is swung in the A direction, and the engagement between the teeth 44 and the claw member 51 is released by this swinging. Thereafter, the take-up drum 6 is moved by the gas pressure of the gas stay 2 through the wire 4 or the like. The wire 4 is fed out from the take-up drum 6 by being rotated in the R direction. In this continuous rotation of the take-up drum 6 in the R direction, the tooth 44 and the teeth 44 are caused by the elastic force of the coil spring 71 and the gas pressure of the gas stay 2. Claw member 51 When the shoji 3 is fully opened by the unwinding of the wire 4 from the winding drum 6 while the engagement is intermittently released, the shoji 3 comes into contact with a stopper (not shown) and the unwinding of the wire 4 is stopped. Then, the rotation of the winding drum 6 in the R direction is stopped.
[0055]
In the window opening / closing operation device 1, when the winding drum 6 rotates in the R direction faster, frictional contact occurs on the inner peripheral surface of the tubular portion 170 of the outer peripheral surface of the braking member 167, and the winding drum 6. When the operation handle 101 is folded, the claw 131 is engaged with the teeth 46 by braking the rotation in the R direction so that the shoji 3 does not collide with a stopper (not shown). Since it is released, the operation handle 101 does not rotate when the winding drum 6 rotates in the R direction. In the window opening / closing operation device 1, since the swing member 53 has the flat surface 69, when the roller 54 is detached from the notch 52 and the rewinding drum 6 can be reversed, The flat surface 69 is in contact with the roller 54 and the swinging member 53 is prevented from swinging in the A direction beyond a certain level, so that the claw member 51 and the teeth 44 are re-engaged in the forward rotation after the winding drum 6 is rotated backward. Is guaranteed.
[0056]
As described above, in the window opening / closing operation device 1, since the prohibiting unit 22 includes the roller 54 that engages the swing member 53, the operation of the push button 91 and the push button for canceling the prohibition in the prohibiting unit 22 are performed. 91 can be smoothly restored, and the rotation of the winding drum 6 is transmitted to the swinging member 53 via the single claw member 51 even in the automatic restoration. In combination with the action, the push button 91 can be automatically restored smoothly, and design and adjustment can be easily performed.
[0057]
Further, in the window opening / closing operation device 1, the engagement between the claw member 51 and the teeth 44 is intermittently released during the rotation of the winding drum 6 in the F direction. Even if the rotation in the direction is temporarily stopped, the prohibiting means 22 can be operated immediately, and the engagement between the claw member 51 and the teeth 44 can be secured immediately after the shoji 3 is opened. If the rotation in the F direction is performed, the push button 91 can be automatically restored immediately. In addition, since the operation handle 101 is foldable, the operation handle 101 is not lost. In addition, since the rotation transmission means 102 with automatic release is provided, the rotation of the operation handle 101 can be preferably avoided when the winding drum 6 is reversely rotated. Qualitatively be accommodated in the handle base 112, it can reduce the thickness of the folded operation handle 101 can be formed compactly.
[0058]
【The invention's effect】
According to the present invention, the push button can be smoothly operated as well as the push button is automatically restored, the operation handle is not lost, and the operation handle is folded. It is possible to provide a window opening / closing operation device that can automatically release the connection between the winding drum and the winding drum.
[Brief description of the drawings]
FIG. 1 is an exploded explanatory view of the example shown in FIG. 2 according to a preferred embodiment of the present invention.
FIG. 2 is a cross-sectional view of an example of a preferred embodiment of the present invention.
FIG. 3 is a front view with the cover of the example of FIG. 2 removed.
4 is a partial front view of the example of FIG. 2 with a cover removed.
FIG. 5 is a front view when the operation handle in the example of FIG. 2 is folded.
6 is a bottom view when the operation handle of the example of FIG. 2 is folded. FIG.
FIG. 7 is an explanatory diagram in which the example of FIG. 2 is applied to a smoke exhaust window.
FIG. 8 is a front view when the folding of the operation handle in the example of FIG. 2 is released.
9 is an operation explanatory diagram of the example of FIG.
10 is an operation explanatory diagram of the example of FIG. 2. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Window opening and closing operation apparatus 2 Gas stay 3 Shoji 4 Wire 6 Winding drum 21 Rotating means 22 Inhibiting means 23 Release means 51 Claw member 52 Notch part 53 Oscillating member 54 Roller 91 Push button

Claims (7)

Normally, the winding drum with one end of the wire connected to the shoji urged in the opening direction is rotated forward to wind the wire around the hoisting drum and close the shoji to open the urging force to the shoji. Is a window opening / closing operation device in which the wire is drawn out from the take-up drum by reversing the take-up drum based on the above, and the shoji is opened. The prohibiting means includes a claw member that engages with teeth formed on the outer peripheral portion of the winding drum, the claw member, and a notch portion. One swing of the swingable swinging member and the swinging member via the claw member due to the rotation of the winding drum is prevented by engagement with the swinging member at the notch , and the winding drum to prohibit the reversal And comprising a roller, releasing means, arranged such that the manually operable from the outside, provided with a push button. The release reversal prohibition of prohibiting means is disengaged from the notches of the roller by a manual operation The notch is defined by a pair of walls of the rocking member in the rocking direction of the rocking member, and the roller is a rocking that defines the notch on its rotatable outer peripheral surface. By engaging the moving member with one wall, the swinging member is prevented from swinging through the claw member due to the rotation of the take-up drum. Thus, the contact between the roller and one wall is released, and the roller is released from the notch. When possible, Abuts is prevented certain level of one of the swing, the winding drum further comprises to have a window opening and closing device walls to ensure re-engagement between the pawl member and the teeth in the forward rotation after the reverse rotation of the.   The prohibiting means further includes elastic means for elastically urging the swinging member in one swinging direction, and the engagement between the claw member and the teeth is intermittent when the winding drum is rotated forward. The window opening / closing operation device according to claim 1, wherein the swinging member is urged by the elastic means to swing so as to be released.   The claw member is mounted on the swing member so as to be swingable concentrically with the swing axis of the swing member. There is further provided other elastic means for elastically urging the other opposite swinging direction, and the engagement between the claw member and the teeth is intermittently released when the winding drum is reversed. The window opening / closing operation device according to claim 1 or 2, wherein the claw member is swung by another elastic means with respect to the swinging member.   When the reverse rotation of the take-up drum is prohibited, the roller is rotatably attached to the push button so that the rotatable outer peripheral surface abuts against one wall of the swing member that defines the notch. The window opening / closing operation device according to any one of claims 1 to 3. The window opening / closing operation device according to any one of claims 1 to 4 , further comprising braking means for suppressing a rotation speed of the take-up drum in reverse rotation of the take-up drum. The rotating means further comprises a rotating means for rotating the take-up drum. The rotating means has a foldable operation handle, and the rotation of the operation handle when the operation handle is unfolded. Rotation transmitting means with automatic release that engages with the rotary shaft of the take-up drum so that it can be transmitted to the part, and releases the engagement of the take-up drum with the rotary shaft when the operation handle is folded The window opening / closing operation device according to any one of claims 1 to 5 , further comprising: The operation handle has a handle base portion arranged to be rotatable around the rotation shaft portion of the winding drum at one end portion, a handle portion having one end portion hinged to the other end portion of the handle base portion, A gripping part attached to the other end of the handle part, and the rotation transmission means with automatic release is slidable on the uneven part formed on the rotating shaft part of the take-up drum and the handle base part. A slide body provided with a convex portion that can be engaged with the concave and convex portion, and an elastic engagement releasing means that elastically urges the slide body in a direction to release the engagement of the convex portion with the concave and convex portion, It is formed at one end of the handle part, and comes into contact with the slide body when the operation handle is unfolded and resists the elastic force of the elastic engagement release means in the direction of engaging the convex part with the concave and convex part. And a cam surface for sliding the slide body. Window opening and closing operating device according to claim 5 or 6.

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