JPH06307155A - Switchgear for window, etc. - Google Patents

Abstract

PURPOSE:To improve the operationability of a window by combining a drive mechanism opening and closing the window and a latch mechanism by a control cable and driving a latch as being interlocked with the opening and closing of the window while manually opening the window at the time of emergency. CONSTITUTION:A drive mechanism 4 by a motor opening and closing a window board 2 and a latch mechanism 5 constraining the opening of the window board 2 are coupled by a control cable 6. A grooved cam 28 having a play region is installed to the window board 2, and connected to the drive mechanism 4 through a driving lever 23. A knob for manual operation disengaging engagement with a lock arm is mounted previously on a drive 4. When the window 2 is opened and closed, the latch 5 is released and constrained when the motor 4 is driven and the driving lever 23 is positioned in the play region of the grooved cam 28. The window is opened and closed by manual operation at the time of emergency. Accordingly, the operationability of the opening and closing of the window can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing device for windows and the like. More specifically, the present invention relates to a motor-driven opening / closing device used for windows for houses, windows for buildings, hinged doors, and the like.

[0002]

2. Description of the Related Art A conventional electric window opening / closing apparatus uses a power transmission member or mechanism such as a cable, a non-back chain, and a rack and pinion for a drive unit for opening / closing. These devices utilize the restraining action of the speed reducer of the motor to prevent the window from being opened from the outside by the power transmission member having no play. Therefore, in particular,
No locking mechanism is provided. On the other hand, when opening a window, the weight of the window plate is used to rely on the weight of the window plate, and for smoke exhaust windows that use the pulling action of the control cable only when closing the window, after the window is closed, pull the inner cable further to bend the conduit. There is something to lock.

There is also one in which a shaft of a pulley for supporting a cable is configured to be movable and is elastically biased to be locked by an excessive operation against the elasticity of the inner cable (Japanese Patent Laid-Open No. 64-83780). JP-A-63-19408
No. 7, etc.). Further, the present applicant has already proposed a motor in which a drive shaft is rotated via a cable and a lever provided at the end of the shaft opens and closes a window of an automobile (Japanese Patent Laid-Open No. Sho 6-62).
No. 4-66387).

[0004]

A device having no locking mechanism cannot sufficiently prevent invasion from the outside. Although it may be possible to provide these with a manual locking lever, it is practically difficult to lock them in a high window in which opening and closing must be driven by a motor. Further, the locking mechanism can be opened and closed by a motor separately, but the device becomes complicated due to an electrical interlock and the cost is increased. A mechanism for releasing the inner cable with an excessive stroke, such as the smoke exhaust window that opens by its own weight, cannot be adopted in a switchgear that electrically operates in both directions. In view of the above points, the present invention provides an opening / closing device for a window or the like, which can be automatically released when the window starts to be opened, and which can be opened / closed and locked / unlocked by a single drive source. That is a technical issue.

[0005]

An opening / closing device for a window or the like according to the present invention comprises: (a) a frame such as a window; and (b) a plate that moves between a position where the opening of the frame is closed and a position where the frame is opened. c) a drive mechanism provided with a drive member that moves from a play area that does not affect the movement of the plate to an operation area for opening and closing the plate that is continuous to the play area; and (d) the plate is closed. (B) a latching mechanism having a restraining member for restraining the operation of the closed plate so as not to open the closed plate and a releasing member for releasing the restraint; and (e) movement of the drive member in the play area. And a cable for transmitting to the release member of the latch mechanism.

When such a device is applied to a window in which the plate is rotatably supported by the frame, the drive mechanism is provided near the position where the plate is supported, and the latch mechanism is provided on the plate. It is preferably provided on the end side. The drive mechanism includes a rotatable drive shaft, a drive lever extending in a radial direction from the drive shaft, a groove cam attached to the plate to operatively engage with a tip of the drive lever, and the cable. And a pulley connected to a drive shaft for reciprocating winding operation, in which case a play area can be provided at one end of the groove cam in which the tip of the drive lever is allowed to move with the plate closed. .

The drive shaft is usually provided so that the drive shaft rotates about an axis parallel to the center of rotation of the plate. In the above device, it is preferable that the tip end side of the drive lever is configured to be capable of being center-folded around an axis perpendicular to the center of rotation of the drive shaft so that the tip end side of the drive lever comes off the groove cam. The restraint member of the latch mechanism is (a) engageable with the plate, and rotates between a restraining position and a releasing position according to opening and closing of the plate,
And a lock arm that is always biased to the open position, and (b) that is engageable with the lock arm and allows the lock arm to rotate to the restraining position, and once it reaches the restraining position, moves to that position. The releasing member can be composed of an intermediate member for locking, and the releasing member is (c) a pulley that rotates in response to the operation of the cable, and (d) an engaging member with which the intermediate member is provided. And the one-way engaging member for releasing the lock of the intermediate member with respect to the lock arm. In this case, it is preferable to connect a manual operation knob for disengaging the lock arm to the intermediate member.

[0008]

When the window or the like is opened, even if the drive member of the drive mechanism moves, the plate does not open while in the play area, and only the cable is operated. Therefore, during that time, the release member of the latch mechanism can be operated via the cable to release the restraint of the window plate by the latch mechanism. Then, when the drive member moves beyond the play area, the plate is operated in the opening direction and moves to the fully open position as it is. When closing the window or the like, the plate is closed by the driving member. At this time, since the restraint member does not prevent the plate from closing, it can be closed as it is. Then, the drive mechanism is constrained in the closed state by the latch mechanism and returns to the original state after passing through the play area. When the window or the like is closed, the plate of the window or the like cannot be opened from the outside by the action of the restraint member of the latch mechanism.

In the apparatus according to the second aspect, the opening and closing of the plate is performed by the rotational movement around the rotation center. The latch mechanism restrains the plate at the free end side farthest from the center of rotation.

In the device of claim 3, when the drive shaft rotates, the tip of the drive lever moves within the play area of the groove cam. In the meantime, the constraint by the latch mechanism is released via the pulley and the cable. When the drive shaft further rotates, the plate rotates to open the window or the like. When closing, the drive lever rotates in the opposite direction and the groove cam engaged with the tip of the drive lever is pulled to rotate the plate in the closing direction. When it is finally closed, the tip of the drive lever engages the edge of the play area to pull the plate. When the plate closes, the latching mechanism does not interfere and becomes restrained after closing. In the device according to the fourth aspect, since the drive shaft and the rotation center of the plate are parallel to each other, the movement of the drive member or the drive lever is simple.

According to the fifth aspect of the present invention, when the drive lever is bent, the tip of the drive lever is disengaged from the groove cam. Therefore, in an emergency, the plate can be manually opened while manually operating the latch mechanism to release the constraint. In the device of claim 6, when the cable is pulled, the pulley rotates, the intermediate member is operated via the one-way engaging member, the engagement with the lock arm is released, and the lock arm is rotated to the non-restraint position. Let When the one-way engagement member passes the engagement position with the intermediate member, the intermediate member returns to the engagement position. In an emergency, regardless of the drive mechanism,
It is also possible to open the plate while directly manipulating the intermediate member. In the device of claim 7, since the manual operation member is connected to the intermediate member, the manual operation in an emergency is easy.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the opening / closing device for windows and the like of the present invention will be described below with reference to the drawings. 1 is a perspective view showing an embodiment of the opening / closing device of the present invention, FIG. 2 is a plan view showing the inside of a drive mechanism in the device of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 2, and FIG. 5 is an enlarged perspective view of the drive mechanism in FIG.
4A, 4B, and 4C are partial cross-sectional plan views, partial cross-sectional side views, and transverse cross-sectional views showing the center bending structure of the drive lever of the drive mechanism of FIG. 4, respectively, and FIG. 6 is the operation of the drive mechanism of FIGS. FIGS. 7 and 8 are plan views and elevation views of the latch mechanism in the apparatus of FIG. 1, and FIGS. 9 to 12 are explanatory views showing the action of the latch mechanism of FIGS.
13 is a side view showing another embodiment of the device of the present invention, FIG.
4 is a schematic plan view showing another embodiment of the latch mechanism according to the present invention, and FIG. 15 is a schematic plan view showing another embodiment of the device of the present invention.

FIG. 1 shows an embodiment in which the device of the present invention is applied to a window opening / closing device A. In FIG. 1, 1 is a window frame (frame), and 2 is a window frame 1 which can be opened and closed by a hinge 3. It is a window plate for push-opening attached to. A drive mechanism 4 is attached to the lower portion 1a of the window frame 1, and a latch mechanism 5 is attached to the right side portion 1b. The drive mechanism 4 and the latch mechanism 5 are connected by a pull control cable 6. Hereinafter, each element will be described in detail.

The window frame 1, the window plate 2, and the hinge 3 are conventionally known and are composed of aluminum sashes 7, 8 and a glass plate 9. A seal packing made of rubber or synthetic resin interposed between the window frame 1 and the window plate 2 for improving airtightness and watertightness is omitted from FIG. Figure 1
In the above, the left side portion 10 of the window plate 2 is connected to the window frame 1 by the hinge 3, but a pair of pins may be provided on the upper side portion 11 and the lower side portion 12 of the window plate 2 or the lengths are different and parallel to each other. A link mechanism may be provided so that the rotation and the sliding movement are performed simultaneously. As will be described later, the upper part 11 of the window plate 2
Alternatively, the lower portion 12 may be fixed to the window frame 1 by a hinge.

The drive mechanism 4 has a housing 13 and a cover 14 attached to the window frame 1 as shown in FIGS. 2 and 3, and further, as shown in FIG. 4, the bottom surface of the housing 13 and the inner surface of the cover 14. And a worm wheel 17 which is rotatably supported by bosses 15 and 16 which respectively project. The worm wheel 17
As shown in FIG. 2, bosses 18 and intermediate ribs 19 projecting from the inner wall of the housing 13 mesh with worms 20, both ends of which are rotatably supported. Warm 2
Zero is coupled to the motor M and is driven to rotate by it. As shown in FIG. 3, a drive shaft 21 having a prismatic shape is axially fitted in the center of the worm wheel 17. The first pulley 22 is inserted in the upper part of the drive shaft 21, and the base end of the drive lever 23 is inserted in the shaft end. As a result, the worm wheel 17, the first pulley 22 and the drive lever 23 rotate integrally. The first
An inner cable 24 of the control cable 6 is wound around the pulley 22 and its tip is locked.

A roller 26 forming a cam follower is rotatably attached to the tip of the drive lever 23. The roller 26 is, as shown in FIG. 4, a lower part 1 of the window plate 2.
It engages with the grooved cam 28 of the cam plate 27 attached to the No. 2. The grooved cam 28 is composed of a play area 28a having an arc shape around the center of rotation of the drive lever 23 when the window plate 2 is closed, and subsequently an operation area 28b extending parallel to the surface of the window plate 2. Has been done. 5a
As shown in FIG. 5, the drive lever 23 is divided into a distal end side 23b and a proximal end side 23a at an intermediate portion in the length direction, and a pin 29 extending in the width direction of the drive lever 23 bends the drive lever 23 in the middle as shown in FIG. It is freely configured. The middle portion which can be bent in the middle is normally held by a sleeve 30 formed of spring steel or the like having a C-shaped cross section as shown in FIG.

In the drive mechanism 4 constructed as described above, when the motor M rotates, the worm 20 rotates, and the rotation is decelerated and transmitted to the worm wheel 17.
Then, the pulley 22 and the drive lever 23 integrally rotate in the direction of arrow B in FIG. At this time, as shown in FIG. 6, since the roller 26 of the drive lever 23 moves within the play area 28a of the groove cam 28 at the initial stage of rotation, the cam plate 2
7, and eventually the window plate 2 does not move. And further motor M
And the drive lever 23 moves in the direction of arrow B, the roller 26 enters the operating region 28b of the grooved cam 28, and the cam plate 27 and the window plate 2 rotate in the direction of arrow B.

On the other hand, the pulley 22 keeps the inner cable 2 from the initial stage of rotation.
4 is wound up and the latch mechanism 5 (5 in FIG. 1) is operated. When the window plate 2 is open, it is preferable that the groove cam 28 and the drive lever 23 have a slight obtuse angle which is not a right angle. In that case, the window plate 2 can be firmly supported even if it is exposed to wind.

When the window plate 2 is closed, the motor M rotates in the reverse direction, and the drive lever 23 is rotated in the arrow C direction via the worm 20 and the worm wheel 17. Groove cam 28
Normally, the window plate 2 is almost closed before the roller 26 returns to the end of the operation area 28b and enters the play area 28a, though it depends on the amount of play of the roller 26. Further, the window plate 2 is completely closed when the roller 26 returns to the original position while moving in the play area 28a or after engaging with the end portion 28c of the play area 28a. When the window plate 2 is closed, the above-mentioned packing is performed by the drive mechanism 4 and the latch mechanism 5.
It also acts to absorb the backlash.

Next, the structure of the latch mechanism 5 will be described with reference to FIGS. Reference numeral 31 in FIGS. 7 to 8 is a base plate, and a lock arm 34 is supported by a first support shaft 33 on a rib 32 provided on the base plate 31 so as to be rotatable about a vertical axis. A groove 36 for receiving the lock pin 35 (see FIG. 7) is formed on the tip end side of the lock arm 34. The locking step 3 is provided on the rear end side.
7 are formed. The lock arm 34 has the lock pin 3
5 is rotated between a restrained position (solid line R) for preventing slipping out and a non-restrained position (imaginary line Im) rotated to an angle at which the lock pin 35 of the window plate can be sent and further received. Further, the lock arm 34 is constantly urged by the spring 38 toward the non-restraint position.

An intermediate plate 39 is rotatably supported on a rear side of the lock arm 34 by a horizontal second support shaft 40, and a tip end side of the intermediate plate 39 is a locking step of the lock arm 34 in a restrained position. The portion 37 is engageable with the side surface of the lock arm 34 in the non-restraint position. Further, when the intermediate plate 39 is rotated in the direction of arrow D in FIG. 8, it does not interfere with the lock arm 34. The intermediate plate 39 is constantly urged by the spring 41 toward the first position where it is engaged with the locking step portion 37, and is in contact with the rib 32 at that position. A lever or knob 42 for manual operation is connected to the rear end side of the intermediate plate 39.

A second pulley 44 is rotatably supported behind the intermediate plate 39 by a horizontal third support shaft 43. The intermediate plate 3 is attached to the second pulley 44.
Finger 4 as one-way engaging means for operating 9
5 is rotatably attached by a pin 46. The fingers 45 do not rotate in the direction of arrow E so that the intermediate plate 39 can be operated to the second position side where the engagement is released by the stopper 47, and only in the direction of arrow F so that the intermediate plate 39 is not disturbed when returning. Rotate. Further, the finger 45 is constantly urged in the direction of arrow E by the spring 48.

The inner cable 24 of the control cable 6 is wound around the outer periphery of the second pulley 44, and its end is locked. In the winding direction, the inner cable 24 is the first drive mechanism.
When pulled by the pulley (22 in FIG. 2) in the arrow G direction, the finger 45 rotates in the arrow F direction so as to operate the intermediate plate 39 toward the second position. Further, the second pulley 44 is biased by the torsion coil spring 49 in the direction opposite to the arrow F.

Next, the operation of the latch mechanism constructed as described above will be described with reference to FIGS. (I) Closed state: When the window plate is closed, the lock arm 34 is in the restrained position as shown in FIGS. 7 to 8, and the intermediate plate 39 is engaged with the locking step portion 37 at that position. Therefore, the lock arm 34 is stopped at the restrained position against the biasing force of the spring 38, and holds the lock pin 35 in the groove 36 at the tip thereof. Therefore, the window plate is in contact with the window frame.

(II) Latch release: When the motor M of the drive mechanism 4 described above (FIGS. 2 to 3) is rotated to rotate the drive shaft 21 and the first pulley 22 in the direction of arrow K, the inner cable 24 is moved to the direction of arrow G. Pull in the direction. This causes the second pulley 44 to rotate in the direction of arrow H as shown in FIG. At this time, since the stopper 47 is present, the finger 45 does not escape backward (direction of arrow E),
As shown in FIG. 9B, the intermediate plate 39 is rotated in the direction of arrow D against the biasing force of the spring 41. When the tip of the intermediate plate 39 is disengaged from the locking step portion 37 of the lock arm 34, the lock arm 34 becomes rotatable. However, since there is the lock pin 35, it does not rotate immediately as shown in FIG. 9a. The operation during this period is performed by the roller 26 as shown in FIG.
While in the play area 28a, the window pane 2 does not move.

(III) Window plate opening operation: When the drive lever 23 of the drive mechanism 4 shown in FIGS. 2 to 3 further rotates to open the window plate, the lock pin 35 causes the lock arm 34 to move to the arrow I as shown in FIG. 9a. Groove 36 of the lock arm 34 while rotating in the direction
Get out of. And the window board is opened as it is. The lock arm 34 is stopped at the unrestrained position by the urging force of the spring 38 (FIG. 9a). Then, the second pulley 44 further rotates in the direction of the arrow H, and the fingers 45 move the intermediate plate 39.
After getting over the rear end, the intermediate plate 39 tries to return in the arrow J direction by the urging force of the spring 41, as shown in FIG. However, since the lock arm 34 is in the unrestrained position,
The tip of the intermediate plate 39 contacts the side surface of the lock arm 34 and is stopped. In this way, the lock arm 34
Is waiting in case the window plate 2 is closed next.

(IV) Window plate closing operation: When the window plate is closed, the motor of the drive mechanism rotates in the reverse direction as described above, and the drive lever 23 and the first pulley 22 rotate in the return direction.
As a result, the pulling force of the inner cable 24 is weakened, and as shown in FIG. 11, the second pulley 44 tries to return in the arrow L direction by the urging force of the torsion coil spring 49 (49 in FIG. 7). At this time, the finger 45 comes into contact with the rear end of the intermediate plate 39, but it rotates in the direction of the arrow F and escapes.
Can return to its original position.

(V) Locking operation: When the window plate is further closed by the action of the drive mechanism, the lock pin 35 engages with the lock arm 34 as shown in FIG. Rotate 34 to the restrained position. This returns to the state of FIGS.

(VI) Emergency release: In an emergency, as shown in FIG. 5B, the drive lever 23 is folded in the middle so that the roller 26 is released from the groove cam 28. As a result, the connection between the drive mechanism 4 and the window plate 2 is released. In this state, the knob 42 of the latch mechanism 5 shown in FIG. 8 is pulled to rotate the intermediate plate 39 in the direction of arrow D to allow the lock arm 34 to freely rotate and push the window plate 2 open. Knob 42 after opening once
When is released, the standby state shown in FIGS. 9a and 10 is obtained. Therefore, when the window plate is closed manually, the operation of the latch is unnecessary.

Although the apparatus of the present invention has been described based on the preferred embodiments, the present invention is not limited to the above embodiments, and various changes and modifications can be made. For example, a push-pull control cable can be used instead of the pull control cable, and a control cable that guides the inner cable with a conduit can be used, or a wire (only the inner cable) can be wound around.

Further, as shown in FIG. 13a, the upper frame 11 of the window plate 2 may be connected to the window frame 1 by the hinge 3.
The lower frame 12 may be connected to the window frame 1 by the hinge 3 as shown in b. Further, the device of the present invention can be applied not only to windows but also to doors and the like. Further, in addition to using a rotary lock arm in the latch mechanism, a slide type latch 52 having a tapered surface 51 used for a door or the like as shown in FIG. 14 can also be used. In this case, when the operation of pulling the latch 52 rearward via the fingers 45 is applied by the inner cable 24 and the second pulley 44, the window plate 2 is released from the restrained state. Further, the device of the present invention can be applied to the sliding window 55 as shown in FIG. In addition to motor driven windows and doors, it can also be applied to windows that are manually operated remotely using a control cable or the like.

[0032]

Since the device of the present invention is provided with the locking mechanism that works in conjunction with the opening / closing mechanism, it is safe from intrusion from the outside. Further, it is convenient that the same drive source can continuously perform the unlocking operation and the opening operation of the window and the like. In particular, when the motor is driven, it is sufficient to provide the motor only at one place, and the electric control becomes simple. Further, by adopting a structure for releasing the engagement relationship between the drive mechanism and the plate and a structure for manually operating the latch mechanism, the window or the like can be easily opened manually in an emergency.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the device of the present invention.

2 is a plan view showing the inside of a drive mechanism in the apparatus of FIG. 1. FIG.

3 is a sectional view taken along line III-III in FIG.

4 is an enlarged perspective view of a drive mechanism in the apparatus of FIG.

5a is a partially cutaway plan view of a drive lever in the mechanism of FIG. 4, FIG. 5b is a partially cutaway side view showing the drive lever in a partially bent state, and FIG. 5c is a sectional view taken along line VV of FIG. 5a. It is a figure.

FIG. 6 is a plan view showing the operation of the drive mechanism shown in FIGS.

7 is a plan view of a latch mechanism in the device of FIG.

FIG. 8 is an elevational view of a latch mechanism in the device of FIG.

FIG. 9 is an elevational view showing an operating state of the latch mechanism of FIGS.

FIG. 10 is an elevational view showing an operating state of the latch mechanism of FIGS.

FIG. 11 is an elevational view showing an operating state of the latch mechanism of FIGS.

FIG. 12 is a plan view showing an operating state of the latch mechanism of FIGS.

13A and 13B are side views showing another embodiment of the opened / closed state of the window plate according to the present invention.

FIG. 14 is a schematic plan view showing another embodiment of the latch mechanism according to the present invention.

FIG. 15 is a schematic front view showing another embodiment of the device of the present invention.

[Explanation of symbols]

 A window opening / closing device 1 window frame 2 window plate 4 drive mechanism 5 latch mechanism 6 control cable M motor 21 drive shaft 22 first pulley 23 drive lever 24 inner cable 28 groove cam 28a play area 28b operation area 34 lock arm 37 locking step Part 39 Intermediate plate 42 Knob 44 Second pulley 45 Finger

Claims (7)

[Claims] 1. From (a) a frame such as a window, (b) a plate that moves between a position where the opening of the frame is closed and a position where the frame is opened, and (c) a play area that does not affect the movement of the plate. A drive mechanism having a drive member that moves over an operation area for opening and closing the plate that is continuous with the play area, and (d) does not prevent the plate from closing and does not open the plate once closed. A latching mechanism having a restraining member for restraining the restraint and a releasing member for releasing the restraint; and (e) a cable for transmitting the movement of the drive member in the play area to the releasing member of the latch mechanism. Opening and closing device for windows etc. provided. 2. The plate is rotatably supported by a frame, the drive mechanism is provided near a position where the plate is supported, and the latch mechanism is provided on a free end side of the plate. The apparatus according to item 1. 3. A drive shaft, wherein the drive mechanism is rotatable, a drive lever extending in a radial direction from the drive shaft, and a groove cam attached to the plate to operatively engage with a tip of the drive lever. And a pulley coupled to a drive shaft for reciprocating the cable, and at one end of the groove cam, a play area is provided in which the tip of the drive lever floats when the plate is closed. The device according to claim 1, wherein 4. The device according to claim 2, wherein the drive shaft rotates about an axis parallel to the center of rotation of the plate. 5. The apparatus according to claim 3, wherein the tip end side of the drive lever is configured to be capable of being center-folded around an axis perpendicular to the rotation center of the drive shaft so as to be disengaged from the groove cam. 6. The restraint member of the latch mechanism is (a) engageable with a plate, and is rotated between a restraining position and a releasing position according to opening and closing of the plate, and is in a position where it is always opened. An urging lock arm, and (b) an intermediate portion that can be engaged with the lock arm and that allows the lock arm to rotate to a restraining position, and that once the lock arm comes to the restraining position, locks in that position. A release member, the release member being (c) a pulley that rotates in response to an operation of the cable; and (d) a lock arm of the intermediate member that engages with the intermediate member and is provided on the pulley. The device according to claim 1, which comprises a one-way engagement member for releasing. 7. The manual operation knob for disengaging from the lock arm is connected to the intermediate member.
The described device.