JP2009057753A - Window opening and closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To shorten an electric energization time for a window opening and closing device for opening a window by delivering a wire by remote control. <P>SOLUTION: This window opening and closing device comprises a drum 10 around which the wire 1 for opening and closing the window by delivering and taking in is wrapped and which is rotatably supported, a ratchet mechanism 40 for restraining the rotation of the drum 10 in the rotating direction in which the wire 1 is delivered, and a releasing mechanism 61 for releasing the restrain of the rotation by the rachet mechanism 40 by moving an operation member 50 to a release position. The device further comprises an opening mechanism 92 for moving the operation member 50 from the origin position to the release position and returning the operation member to the origin position via an opening position by rotating the rotary member 8. The opening mechanism 92 comprises a biasing member 72 for rotating and biasing the rotary member 82 to the origin position and a drive source 74 for rotating the rotary member 82 to the opening position through a clutch 80 for transmitting the rotation in one direction against the biasing force of the biasing member 72. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a window opening / closing device that opens a window by drawing a wire by remote control.

2. Description of the Related Art Conventionally, for example, a window opening / closing device that opens a window by forcibly releasing a lock of a drum by energization in an emergency such as a fire and feeding a wire wound around the drum is known. As such a window opening and closing device, as disclosed in Patent Document 1, a crank lever supported to be swingable and an eccentric cam rotated by an electric motor, and the eccentric cam is energized by energizing the electric motor. It is known to rotate a predetermined angle to swing a crank lever, unlock the drum by the crank lever, feed out the wire, and open the window.
JP 2000-213233 A

  However, in such a conventional device, the eccentric cam is rotated from the original position to release the lock, and further, the eccentric cam is rotated to return to the original position and is ready for the next opening operation. Yes. The eccentric cam is rotated by an electric motor via a speed reducer, and the eccentric cam rotates at a low speed. The eccentric cam starts rotating from the original position, is unlocked, and rotates at a constant rotational speed until it returns to the original position. It takes a long time to return.

  For this reason, energization time to the electric motor becomes longer and energy consumption increases, and there is a problem that a longer time is required when opening a plurality of windows in order using a plurality of window opening and closing devices. there were.

  The subject of this invention is providing the window opening / closing apparatus which can shorten energization time.

In order to achieve this problem, the present invention has taken the following measures in order to solve the problem. That is,
A drum that is wound and supported by a wire that opens and closes the window by unwinding and winding; and
A ratchet mechanism that regulates rotation of the drum in a rotation direction for feeding out the wire;
In a window opening and closing device provided with a release mechanism that releases the restriction of rotation by the ratchet mechanism by movement of the operation member to the release position,
An opening mechanism for rotating the rotating member to return the operating member from the original position to the original position via an open position for moving the operating member to the releasing position;
The release mechanism is configured to release the rotation member against the biasing force of the biasing member via a biasing member that biases the rotation member to the original position and a clutch that transmits rotation in one direction. A window opening and closing device characterized by comprising a drive source that rotates at a position.

  The opening mechanism includes a lever member supported so as to be swingable, and the rotating member swings the lever member by rotation, and the operating member is moved to the release position by the lever member in the open position. It is good also as a structure. Alternatively, the opening mechanism includes a lever member supported so as to be swingable, and connects the rotation member and the lever member so as to be swingable by a transmission link, and the rotation member is rotated via the transmission link. The lever member may be swung, and the operation member may be moved to the release position by the lever member in the open position. In that case, the said biasing member is good also as a structure which rotationally biases the said rotation member to the said original position via the said lever member.

  The window opening and closing device of the present invention rotates the rotating member to the open position via the clutch that transmits the rotation in one direction, and returns the rotating member to the original position by the biasing force of the biasing member. Since the drive by the drive source can be stopped, the energization time to the drive source can be shortened and the energy consumption can be reduced.

  By supporting the lever member in a swingable manner and swinging the lever member by the rotating member and moving the operating member to the release position, the rotation of the rotating member can be transmitted to the operating member with a simple structure. Further, by urging the lever member with the urging member, it is possible to easily urge the rotating member to the original position.

The best mode for carrying out the present invention will be described below in detail with reference to the drawings.
As shown in FIGS. 1 to 4, reference numeral 1 denotes a wire, and the tip of the wire 1 is fastened to a window 4 supported so as to be openable and closable by the window frame 2, or the tip of the wire 1 is fastened to the window frame 2. When the wire 1 is drawn out through a pulley (not shown) attached to the window 4, the window 4 is opened by its own weight, a spring biasing force or the like, and when the wire 1 is wound up, the window 4 is closed.

  The other end of the wire 1 is drawn into the box 6, and the wire 1 is housed in a main body frame 8 disposed in the box 6 and wound around a drum 10 that is rotatably supported by the main body frame 8. ing.

  The drum 10 is formed in a hollow shape, and a centrifugal brake mechanism 12 is disposed between the drum 10 and the main body frame 8. The centrifugal brake mechanism 12 is a well-known device that presses the weight 13 against the drum 10 by the centrifugal force generated by the rotation of the drum 10 and brakes the rotation of the drum 10 to decelerate the rotation of the drum 10 when the wire 1 is fed. is there.

  The box 6 is covered and closed with a lid member 12, and a handle member 14 is disposed on the lid member 12. The handle member 14 is supported so as to be swingable around the fulcrum pin 15. The handle member 14 is accommodated in the recess of the lid member 12 as shown in FIG. 1, and the handle member 14 is moved as shown in FIG. 4. It is configured to be able to swing between a state where it can be rotated.

  The handle member 14 and the drum 10 are configured such that the rotation of the handle member 14 is transmitted to the drum 10 via a hexagonal shaft 18 inserted into a hexagonal hole 16 formed in the axial direction of the drum 10. ing. In the present embodiment, the push button 20 is slidably supported in the middle of the handle member 14, and the tip of the push button 20 penetrates the handle member 14 and protrudes into the box body 6. .

  In the drum 10, a body portion 22 around which the wire 1 is wound, and a flange portion 24 are integrally formed on one end side of the body portion 22, and a ring-shaped flange portion 26 is fixed on the other end side of the body portion 22. Has been. A ratchet gear portion 28 is formed on the entire outer periphery of one flange portion 24.

  As shown in FIG. 5, a swing member 30 is disposed opposite the ratchet gear portion 28, and the swing member 30 is attached to a fulcrum shaft 32 provided on the main body frame 8 parallel to the axial direction of the drum 10. It is supported so that it can swing.

  A ratchet pawl 34 is swingably supported on the swing member 30 via a fulcrum pin 36, and the ratchet pawl 34 is attached to the ratchet gear portion 28 by a toggle coil spring 38 wound around the fulcrum pin 36. Energized to engage.

  The ratchet gear portion 28, the swinging member 30, the ratchet pawl 34, the fulcrum pin 36, and the toggle coil spring 38 constitute a ratchet mechanism 40. As shown in FIG. In the state of being engaged with each other, the ratchet pawl 34 swings against the biasing force of the toggle coil spring 38 by the ratchet gear portion 28 in the direction in which the wire 1 is wound around the drum 10 (the direction of arrow A in FIG. 5). The drum 10 is allowed to rotate. On the other hand, in the direction in which the wire 1 is fed out from the drum 10 (in the direction of arrow B in FIG. 5), the ratchet pawl 34 meshes with the ratchet gear portion 28 to restrict the rotation of the drum 10.

  An auxiliary claw 42 is supported on the swing member 30 so as to be swingable around the fulcrum pin 44 with the fulcrum shaft 32 interposed therebetween with respect to the ratchet claw 34. A toggle coil spring 46 is wound around the fulcrum shaft 32. One end of the toggle coil spring 46 is in contact with the fulcrum pin 44, and the other end is wound around a pin 48 erected on the main body frame 8. .

  Thus, the swinging member 30 is urged to rotate around the fulcrum shaft 32 in a direction in which the ratchet pawl 34 is separated from the ratchet gear portion 28 and the auxiliary pawl 42 is engaged with the ratchet gear portion 28.

  As shown in FIG. 1, the operation member 50 is slidably inserted into the main body frame 8 in a slide hole 52 formed in parallel with the axial direction of the drum 10, and is accommodated in the slide hole 52. The coil spring 54 is biased toward the lid member 12 side.

  The operation member 50 is disposed so as to face the push button 20, and is configured such that when the push button 20 is pressed, the operation member 50 is moved against the urging force of the coil spring 54 via the pressing plate 56. ing.

  As shown in FIG. 5, the operation member 50 is formed with a fan-shaped insertion groove 58 and a rectangular vertical groove 60. As shown in FIG. 5A, when the operating member 50 is moved by the urging force of the coil spring 54 and abuts against the stepped portion 59 of the main body frame 8, the movement of the toggle coil spring 46 is restricted. The tip of the swinging member 30 that is swung by the force comes into contact with the outer periphery of the operation member 50, and swinging of the swinging member 30 is restricted. At that time, the ratchet pawl 34 is configured to mesh with the ratchet gear portion 28.

  Further, as shown in FIG. 5B, when the operation member 50 is pushed in a predetermined amount and moved to the release position, the swinging member 30 that is swung into the fitting groove 58 by the biasing force of the toggle coil spring 46 is used. The tip is inserted, the ratchet pawl 34 is separated from the ratchet gear portion 28, and the auxiliary pawl 42 is configured to contact the ratchet gear portion 28.

  In the present embodiment, the release mechanism 61 is configured by the swing member 30, the toggle coil spring 46, the operation member 50, and the coil spring 54. The main body frame 8 is provided with two limit switches 41 a and 41 b that are pressed by the swing of the swing member 30.

  A vertical groove 62 is also formed in the main body frame 8 so as to face the vertical groove 60, and a protrusion 66 formed at the tip of a lever member 64 is formed in the vertical groove 60 as shown in FIGS. 6 and 7. Has been inserted. The lever member 64 is swingably supported by a swing shaft 70 formed on the case 68, the tip of the lever member 64 protrudes outside the case 68, and the protrusion 66 is disposed outside the case 68. Has been.

  The lever member 64 is urged to rotate around the oscillating shaft 70 by an urging member 72 using a toggle coil spring wound around the oscillating shaft 70. By this urging force, the protrusion 66 is urged to rotate in the direction of coming out of the vertical groove 60.

  A drive source 74 using an electric motor with a speed reducer is attached to the case 68 by screws 76, and a drive shaft 78 of the drive source 74 is disposed in parallel with the swing shaft 70. A rotating member 82 is attached via a clutch (hereinafter referred to as a one-way clutch) 80 that transmits the rotation in the direction.

  The one-way clutch 80 transmits the rotation of the drive shaft 78 in one direction (in this embodiment, the direction of the arrow C in FIG. 8A) to the rotating member 82, but the rotation in the reverse direction is free. On the other hand, when a rotational force is applied from the rotating member 82 side, the rotation transmission is reversed from the drive shaft 78 side, and the rotation in the direction of arrow C in FIG.

  The rotating member 82 is formed with a cylindrical portion 84 at a position parallel to the swing shaft 70 and eccentric to the drive shaft 78 to form an eccentric cam. Is in contact with the lever member 64 at the end opposite to the protrusion 66.

  The urging force of the urging member 72 acts on the rotating member 82 via the lever member 64 and the cylindrical portion 84, and the rotating member 82 is acted on by the urging force in a state where the rotating driving force from the driving source 74 is not acting. Is rotated to the original position to hold the cylindrical portion 84 at the original position shown in FIG. At that time, the operating member 50 is in a state of being abutted against the stepped portion 59 by the urging force of the coil spring 54, and the projecting portion 66 is in contact with the bottom of the vertical groove 60 or in the vicinity thereof.

  When the rotating member 82 is rotated from the original position in the direction of arrow C in FIG. 8A, the end of the lever member 64 is lifted through the cylindrical portion 84 to swing the lever member 64 against the urging force of the urging member 72. Move. The protrusion 66 of the lever member 64 depresses the operation member 50 through the bottom of the longitudinal groove 60 of the operation member 50 until the rotation member 82 rotates approximately 180 degrees, and the operation member 50 is moved to the release position. The tip of the swing member 30 is configured to enter the fitting groove 58 of the operation member 50. In the present embodiment, the position of the rotating member 82 at this time is the open position.

  A limit switch 86 is disposed in the case 68, and the limit switch 86 is provided so as to be pressed by a dog portion 88 that is formed to protrude from the outer periphery of the rotating member 82. The shape of the dog portion 88 is formed such that the limit switch 86 is pressed until the rotation of the rotating member 82 exceeds 180 degrees after the rotating member 82 rotates by a predetermined angle. The case 68 is closed with a case lid 90. In the present embodiment, the case 68, the lever member 64, the biasing member 72, the drive source 74, the one-way clutch 80, the rotating member 82, and the case lid 90 constitute an opening mechanism 92.

Next, the operation of the window opening / closing device of the present embodiment described above will be described.
With the window 4 open, the handle member 14 is raised from the lid member 12 to rotate the handle member 14 as shown in FIG. At that time, as shown in FIG. 5A, the tip of the swing member 30 is in contact with the outer periphery of the operation member 50, and the ratchet pawl 34 is in contact with the ratchet gear portion 28. Since the ratchet gear portion 28 rotates in the direction of arrow A in FIG. 5 together with the drum 10, the ratchet pawl 34 swings against the urging force of the toggle coil spring 38 and is in contact with the ratchet gear portion 28. Get over the gear section 28.

  Therefore, the rotation of the drum 10 is allowed, the drum 10 is rotated via the hexagonal shaft 18, and the wire 1 is wound around the drum 10. Since the ratchet pawl 34 meshes with the ratchet gear portion 28 and the rotation in the direction of arrow B in FIG. 5 is restricted, the handle member 14 is rotated by a load caused by the weight of the window 4 or the like. It will never be done. By winding the wire 1, the window 4 is closed. After the window 4 is closed, the handle member 14 is accommodated in the groove of the lid member 12.

  In this state, when a drive signal is input to the drive source 74 from the outside, the drive source 74 is driven to rotate in the direction indicated by the arrow C in FIG. Rotated from position.

  When the rotating member 82 rotates, the cylindrical portion 84 pushes up the end of the lever member 64 against the urging force of the urging member 72. Due to the swing of the lever member 64, the protrusion 66 of the lever member 64 hits the bottom of the vertical groove 60 of the operation member 50 and moves the operation member 50 against the urging force of the coil spring 54.

  As shown in FIG. 8 (b), the dog member 88 pushes the limit switch 86, and the rotating member 82 exceeds 180 degrees from the original position, as shown in FIG. 8 (b). In addition, the rotating member 82 rotates via the open position.

  When rotating via the open position, the operating member 50 is moved beyond the release position by the projection 66, and swings into the fitting groove 58 by the urging force of the toggle coil spring 46, as shown in FIG. The tip of the swinging member 30 enters, the ratchet pawl 34 is separated from the ratchet gear portion 28, and the auxiliary pawl 42 contacts the ratchet gear portion 28.

  Due to the load from the window 4, a rotational force acts on the drum 10 in the direction in which the wire 1 is fed out. When the ratchet gear portion 28 rotates in the direction of arrow B in FIG. 5, the auxiliary pawl 42 is not restricted in rotation because it swings against the urging force by the crest of the ratchet gear portion 28. Therefore, the drum 10 rotates in the direction in which the wire 1 is fed out, the wire 1 is fed out from the drum 10 and the window 4 is opened.

  As shown in FIG. 8 (c), when the rotating member 82 is rotated from the original position via the open position by over 180 degrees, the rotating member 82 is connected to the rotating member 82 via the lever member 64 and the cylindrical portion 84. Since the rotation urging force is applied by the urging member 72, the rotation member 82 is rotated at a stroke to the original position as shown in FIG.

  Since the rotating member 82 is returned to the original position by the urging force of the urging member 72, the driving of the drive source 74 may be stopped after the rotating member 82 has rotated more than 180 degrees. In this embodiment, when the rotation exceeds 180 degrees, the pressing of the limit switch 86 by the dog unit 88 is released. Therefore, the drive of the drive source 74 is stopped by a signal from the limit switch 86 at this time. May be.

  Even if the rotating member 82 returns to the original position, and the lever member 64 swings and the protrusion 66 is separated from the operating member 50, the tip of the swinging member 30 enters the fitting groove 58 of the operating member 50. Since the bottom of the fitting groove 58 comes into contact with the swing member 30, the operation member 50 is restricted from moving by the urging force of the coil spring 54, and maintains the release position shown in FIG. Is maintained apart from the ratchet gear portion 28.

  In this way, the drive source 74 can move the operating member 50 to the release position by rotating the rotating member 82 from the original position through the open position, and from the open position to the original position. The rotating member 82 is rotated back by the biasing force of the biasing member 72. In the meantime, since the rotational drive by the drive source 74 is unnecessary, the drive by the drive source 74 can be stopped, the time for rotationally driving the drive source 74 can be shortened, and energy consumption can be reduced.

  Further, the rotating member 82 is returned to the original position by the urging force of the urging member 72, and the drive source 74 is stopped from driving, so there is no need to provide a limit switch for detecting the return to the original position. The limit switch for detecting the original position can be reduced, and the number of parts can be reduced. In the present embodiment, the limit switch 86 is provided, but may be provided as necessary.

  From this state, when the handle member 14 is pulled out and rotated to close the window 4, the auxiliary pawl 42 is pushed through the ratchet gear portion 28 as shown in FIG. As a result, the swing member 30 is swung around the fulcrum shaft 32, and the tip of the swing member 30 is extracted from the fitting groove 58. Therefore, the operating member 50 is moved by the urging force of the coil spring 54 and abuts against the stepped portion 59.

  The tip of the swing member 30 comes into contact with the outer periphery of the operation member 50, and as shown in FIG. 5 (a), the ratchet pawl 34 comes into contact with the ratchet gear portion 28 and the drum 10 rotates in the winding direction of the wire 1. Is allowed and the rotation in the feeding direction is restricted. By winding the wire 1, the window 4 is closed. After the window 4 is closed, the handle member 14 is accommodated in the groove of the lid member 12.

  In the above-described embodiment, the eccentric cam is used for the rotating member 82. However, the present invention is not limited to this, and the rotating member 93 using a link member can be used as in the second embodiment shown in FIG. is there. As described above, the rotation member 93 is rotated by a drive source via a one-way clutch, and the rotation member 93 and the end of the lever member 64 are connected to each other by a transmission link 94 so as to be swingable.

  When the rotating member 93 is rotated from the original position shown in FIG. 9A, the lever member 64 is swung against the urging force of the urging member 72 via the transmission link 94. As shown in FIG. 9B, when the operating member 50 is moved by the swinging of the lever member 64, and the rotating member 93 is rotated via the open position as shown in FIG. The member 50 is moved to the release position, and the rotating member 93 is returned to the original position by the urging force of the urging member 72 as shown in FIG.

  Moreover, you may comprise so that the operation member 50 may be directly moved by the rotation member 96, without using the lever member 64 like 3rd Embodiment shown in FIG. The rotating member 96 is provided with a cylindrical portion 97, and is arranged so that the cylindrical portion 97 can contact the operating member 50 and move the operating member 50.

  The urging member 98 is configured to urge the rotation member 96 to rotate, and the rotation member 96 can be driven to rotate by a drive source via a one-way clutch. As shown in FIG. 10A, the cylindrical member 97 moves the operating member 50 by rotating the rotating member 96 from the original position. Then, as shown in FIG. 10 (b), when the rotating member 96 is rotated more than 180 degrees via the open position, the operation member 50 is moved to the release position during that time, and the rotation restriction of the drum 10 is released. Then, the wire 1 is fed out. Thereafter, the rotating member 96 is rotated by the urging member 98 and returned to the original position.

  The present invention is not limited to such embodiments as described above, and can be implemented in various modes without departing from the gist of the present invention.

It is an expanded sectional view of the window opening apparatus as one embodiment of the present invention. It is the front view which removed the lid member of the window opening and closing device of this embodiment. It is aa sectional drawing of FIG. It is a perspective view of the window opening and closing device in the state where the handle member of the present embodiment is pulled out. It is explanatory drawing which shows schematic structure of the ratchet mechanism of this embodiment, and a cancellation | release mechanism. It is an expansion perspective view of the member integrated in the box of this embodiment. It is an expansion disassembled perspective view of the open mechanism of this embodiment. It is explanatory drawing which shows operation | movement of the open mechanism of this embodiment. It is explanatory drawing which shows operation | movement of the open mechanism as 2nd Embodiment. It is explanatory drawing which shows operation | movement of the open mechanism as 3rd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Wire 2 ... Window frame 4 ... Window 6 ... Box body 8 ... Main body frame 10 ... Drum 12 ... Lid member 12 ... Centrifugal brake mechanism 14 ... Handle member 15 Support point pin 20 ... Push button 28 ... Ratchet gear part 30 ... Swing Moving member 32 ... fulcrum shaft 34 ... ratchet pawl 38 ... toggle coil spring 40 ... ratchet mechanism 42 ... auxiliary pawl 46 ... toggle coil spring 50 ... operating member 54 ... coil spring 58 ... insertion groove 60 ... longitudinal groove 61 ... release mechanism 64 ... Lever member 66 ... Projection 70 ... Oscillating shafts 72 and 98 ... Biasing member 74 ... Drive source 78 ... Drive shaft 80 ... One-way clutch 82, 93, 96 ... Rotary member 84, 97 ... Cylindrical part 86 ... Limit switch 88 ... Dog part 92 ... Opening mechanism 94 ... Transmission link

Claims (4)

A drum that is wound and supported by a wire that opens and closes the window by unwinding and winding; and
A ratchet mechanism that regulates rotation of the drum in a rotation direction for feeding out the wire;
In a window opening and closing device provided with a release mechanism that releases the restriction of rotation by the ratchet mechanism by movement of the operation member to the release position,
An opening mechanism for rotating the rotating member to return the operating member from the original position to the original position via an open position for moving the operating member to the releasing position;
The release mechanism is configured to release the rotation member against the biasing force of the biasing member via a biasing member that biases the rotation member to the original position and a clutch that transmits rotation in one direction. A window opening and closing device comprising a drive source that rotates at a position. The opening mechanism includes a lever member supported so as to be swingable, and the rotating member swings the lever member by rotation, and the operating member is moved to the release position by the lever member in the open position. The window opening and closing apparatus according to claim 1. The opening mechanism includes a lever member supported so as to be swingable, and connects the rotating member and the lever member so as to be swingable by a transmission link, and the rotating member rotates through the transmission link to rotate the lever. The window opening and closing device according to claim 1, wherein the operating member is moved to the release position by the lever member in the open position by swinging the member. The window opening / closing device according to claim 2, wherein the biasing member rotationally biases the rotating member to the original position via the lever member.

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