KR101299324B1

KR101299324B1 - Window open and close device able to operate automatic and manual

Info

Publication number: KR101299324B1
Application number: KR1020120061122A
Authority: KR
Inventors: 서광민
Original assignee: 서광민
Priority date: 2012-06-07
Filing date: 2012-06-07
Publication date: 2013-08-26

Abstract

The present invention relates to a window opening and closing device capable of automatic and manual operation, comprising: a driving unit supported by a housing coupled to a window to provide forward and reverse rotational power; A chain operation part provided to allow the chain to enter and exit the housing; It is possible to move between the power transmission position where the power of the drive unit is transmitted to the chain operation unit and the power release position where the power of the drive unit is released to the chain operation unit, and interlocked to convert the rotational movement of the drive unit to linear movement. A power control unit having a cam member; And an elastic member elastically pressurizing the cam member to the power release position or the power release position.
Thus, according to the present invention, it is possible to provide a window opening and closing device that is simple and simple in structure, can reduce the number of parts and can prevent the occurrence of failure in advance. In addition, it is easy to manufacture, assemble, etc., and can improve economics, and it does not use a lot of electrical parts, thus preventing the occurrence of failure factors.

Description

Window Open and Close Device able to operate Automatic and Manual}

The present invention relates to a window opening and closing device capable of automatic and manual operation. More particularly, the present invention relates to a window opening and closing device capable of automatic and manual operation having an improved structure to be manually operated while being automatically opened and closed by a motor.

The windows used in apartments, large buildings, public buildings, etc. are provided with a drive unit including a motor in an emergency such as a fire, and have a window opening and closing device that can be automatically opened and closed centrally or individually.

The window opening and closing device needs to be opened and closed manually as well as in case of emergency.

Therefore, it is preferable that a window opening and closing device for automatically opening and closing the window in an emergency such as a fire and manually opening and closing the window according to the needs of the user is provided in an apartment or the like.

For this reason, Patent Registration No. 10-1125848 was developed. Such a prior art can use the solenoid valve to transfer power and release power.

However, in both automatic and manual window opening and closing devices, it is desirable to reduce the number of parts by reducing electronic parts such as solenoid valves, making it simple and convenient to manufacture and assemble, as well as reducing the possibility of failure. In addition, it is preferable that the window opening and closing device is not operated by a fine external force even when the external force is operated while the window is open.

It is an object of the present invention to provide a window opening and closing device capable of automatic and manual combined use, which is capable of automatic driving but also simple and convenient manual driving.

In addition, another object of the present invention is to provide a window opening and closing device that is simple in structure, easy to use, can reduce the number of parts, and can prevent a factor of failure in advance.

In addition, another object of the present invention is to provide a window opening and closing device that can be easily manufactured, assembled, and the like and can improve economic efficiency.

In addition, another object of the present invention is to provide a window opening and closing device that can prevent the occurrence of failure in advance by not using a lot of electrical components.

Further, another object of the present invention is to provide a window opening and closing device that can be assembled by simply packaging or modularizing the assembly parts.

It is also an object of the present invention to provide a window opening and closing device that can stably maintain an open state even in a minute external force in an open state, and can prevent a safety accident or the like.

It is also an object of the present invention to provide a window opening and closing device that can stably maintain a position in an open or closed position of a window.

It is an object of the present invention to provide a drive that is supported in a housing coupled close to the window to provide a forward and reverse rotational power; A chain operation part provided to allow the chain to enter and exit the housing; It is possible to move between the power transmission position where the power of the drive unit is transmitted to the chain operation unit and the power release position where the power of the drive unit is released to the chain operation unit, and interlocked to convert the rotational movement of the drive unit to linear movement. A power control unit having a cam member; It is achieved by the window opening and closing device comprising a; elastic member for elastically pressing the cam member to the power release position or the power transmission position.

The cam member may include a driving cam member coupled to the driving unit and an intermittent cam member engaged with the driving cam member, and the power intermittent portion is coupled to the housing to support the intermittent cam member in a slidable manner. It is preferable to further include an interruption shaft.

In addition, one of the intermittent shaft and the intermittent cam member may further include a sliding slot for slidably guiding the intermittent cam member with respect to the intermittent shaft.

In addition, in the power transmission position, one side is coupled with the intermittent cam member and the other side is coupled with the chain operation portion, and in the power release position, one side is coupled with the intermittent cam member and the other side is decoupled with the chain operation portion. It is preferable to further include an intermittent gear that is supported by the intermittent shaft.

In addition, the chain operation part, a chain gear shaft rotatably coupled to the housing, a chain gear coupled to one side of the chain gear shaft and engaged with the intermittent gear, and supported on the other side of the chain gear shaft to open and close a window. It is preferable that a chain sprocket for driving the chain by coupling the chain is included.

In addition, the chain operating portion, it is preferable to include a chain movement limiting portion provided to the chain operating portion and the housing in the process of moving the chain to provide a force that resists the rotational force of the chain operating portion.

In addition, the chain operation portion is provided in the chain and the housing in the open position in which the end of the chain is moved from the housing and the window is opened and the end of the chain is close to the housing and the window is closed to engage with each other. It is desirable to include a chain position fixer provided to provide a force that resists chain movement.

In addition, it is preferable to further include a control unit for controlling the cam member to move to the power release position by detecting the state of reaching the target position that the window is opened or closed, by operating the drive unit.

According to the present invention, it is possible to perform automatic and manual operation, the structure is simple and convenient to use, the number of parts can be reduced, the occurrence of failure factors can be prevented in advance, and the production, assembly, etc. are easy to improve the economics. You can.

In addition, failure to use a lot of electrical components can be prevented in advance, failure elements, and can be assembled by simply assembling or modularizing the assembly parts. And, in the open state can be maintained in a stable state even in the fine external force, and can prevent a safety accident, and can maintain a stable position in the open position or closed position of the window.

1 is a perspective view of a window opening and closing device installed on a window according to an embodiment of the present invention,
2 is a cross-sectional view showing the main portion of FIG.
3 is an exploded perspective view of the main part of FIG. 2;
4 is a cross-sectional view illustrating a power transmission position and a power release position;
5 is a schematic diagram for explaining a chain movement restriction unit;
6 is a schematic diagram for explaining the chain position fixing part.

The window opening and closing apparatus 100 according to the present invention will be described in detail with reference to FIGS. 1 to 6.

1 is a perspective view of a window opening and closing device installed on a window according to an embodiment of the present invention, Figure 2 is a cross-sectional view showing the main portion of Figure 1, Figure 3 is an exploded perspective view of the main portion of Figure 2, Figure 4 is a power transmission Fig. 5 is a schematic view for explaining the position and power disengaging position, Fig. 5 is a schematic view for explaining the chain movement limiting portion, and Fig. 6 is a schematic view for explaining the chain position fixing portion.

Window opening and closing device 100 according to the present invention and the drive unit 120 for providing power to the chain 317 accommodated inside the housing 110 to open and close the window 10 attached to the window frame 20 and , And is provided between the chain operating part 300 for operating the chain 317 and the driving part 120 and the chain operating part 300 to move between the power transmission position (see FIG. 2) and the power release position (see FIG. 4). It characterized in that it comprises a power control unit 200 and an elastic member 255 for elastically pressing the power control unit 200.

The housing 110 is usually coupled to the window frame 20 is preferably an extrudate having a structure that can accommodate and support each part of the window opening and closing device 100. The housing 110 may have the lower housing 110b and the upper housing 110a coupled to each other, and the surfaces of the housing 110 may be coupled to each other by the rotation axis of the driving unit 120 and the rotation axis of the control shaft 241 or the power control unit 200. It is preferable to include. Accordingly, the power control unit 200 may be coupled to the lower housing 110b in a packaged to modular state assembled as described below.

The driving unit 120 may further include a speed reducer configured to include a motor that is operated by an emergency power source applied or stored therein to provide power and to reduce rotation of the motor. The drive unit 120 is provided with a drive shaft 123 to transmit the rotational force to the power control unit 200.

Power control unit 200 is a power transmission position (see Fig. 4) is the power of the drive unit 120 is transmitted to the chain operation unit 300, and the power of the drive unit 120 is released to the chain operation unit 300 Cam member 210 and the one side is coupled with the cam member 210 and the other side is intermittent gear 253 is coupled to the intermittent shaft 241 is rotated in accordance with the rotation of the cam member 210, the cam member 210 or the intermittent shaft 241 is rotated to mesh with the chain gear 310 to drive the power of the drive unit 120 And an elastic member 255 for elastically pressing the cam member 210 to a power release position in the linear motion region.

The cam member 210 includes a driving cam member 211 coupled to the drive shaft 123 of the driving unit 120, and an intermittent cam member 231 engaged with the driving cam member 211 to rotate and coupled with the intermittent gear 253. ).

Any one of the driving cam member 211 and the intermittent cam member 231 may be provided with a locking portion 213 of a protruding shape and a locking portion 233 engaged with the locking portion 213 on the other. For convenience of explanation, the locking portion 213 is formed on the driving cam member 211, and the biting portion 233 is formed on the intermittent cam member 231.

The driving cam member 211 is provided with a plurality of locking portions 213 protruding from the cylindrical shape. Correspondingly, the intermittent cam member 231 has a bite portion 233 recessed at an end thereof.

In addition, the stitching portion 233 has a recessed top dead center 233b, a bottom dead center 233a having the most recessed degree, and an inclined portion 233c between the top dead center 233b and the bottom dead center 233a. ). Here, since the driving unit 120 performs the forward and reverse rotation, the top dead center 233b and the inclined portion 233c are respectively formed in the forward rotation reverse rotation direction from the bottom dead center 233a.

Accordingly, the locking portion 213 of the driving cam member 211 is along the inclined portion 233c at the bottom dead center 233a of the intermittent cam member 231 according to the forward or reverse rotation of the driving cam member 211. It may move to the top dead center 233b. That is, the engaging portion 213 may not rotate any more in contact with one side wall (not shown) of the top dead center 233b and may rotate together with the intermittent cam member 231.

The rotational force between the engagement portion 233 and the engaging portion 213 is a sliding force provided in the driving unit 120 in a direction in which the cam member 210 or the interruption gear 253 linearly slides with respect to the intermittent shaft 241. This can overcome the force and the pressing force of the elastic member 255 can be made smoothly.

Thus, the rotational force according to the forward or reverse rotation of the drive shaft 123 is transmitted to the drive cam member 211 so that the engaging portion 233 of the intermittent cam member 231 to which the locking portion 213 of the drive cam member 211 is engaged. The intermittent cam member 231 and the intermittent gear 253 are guided by linear motion with respect to the intermittent shaft 241 between the bottom dead center 233a and the top dead center 233b by the rotary motion. The power release position and the power transmission position can be moved.

That is, the rotational motion of the driving cam member 211 and the intermittent cam member 231 may be converted into a linear motion through the sliding movement of the locking portion 213 and the engagement portion 233. By switching the motion, the intermittent gear 253 coupled with the intermittent cam member 231 may slide to move and disengage and engage the chain gear 310.

The intermittent shaft 241 is preferably supported by the housing 110 on the same rotation axis as the drive shaft 123. The intermittent shaft 241 has a pin hole 245 to which the slot pin 257 can be coupled, and a ring groove 243 to which the snap ring 251 supported by the elastic member 255 can be coupled. desirable. The intermittent shaft 241 is supported by the bearing 261 at the right end, and a bearing support (not shown) that supports the upper side of the chain gear shaft 313, which is the rotation shaft of the chain gear 310, in the central region in addition to the right end. As a result, vibration and shaking of the intermittent shaft 241 can be prevented.

The intermittent shaft 241 has a long rod shape, and the intermittent cam member 231 and the intermittent gear 253 are sequentially coupled to the left end. The intermittent cam member 231 and the intermittent gear 253 are coupled to the intermittent shaft 241 to be slidably moved in the longitudinal direction of the intermittent shaft 241. As one example, as illustrated in FIGS. 2 to 4, a pinhole 245 is formed in the intermittent shaft 241, and a sliding slot is formed in the center portion of the intermittent cam member 231 and the intermittent gear 253. 259) is formed. Of course, the pinhole 245 and the sliding slot 259 may be formed in reverse.

Accordingly, the intermittent cam member 231 and the intermittent gear 253 with respect to the intermittent shaft 241 along the sliding slot 259 coupled to the pinhole 245 in the axial direction of the intermittent shaft 241. ) According to the guide of the slot pin 257 and the sliding slot 259 can be moved.

Here, the sliding slot 259 is shown to be provided in parallel in the longitudinal direction of the intermittent shaft 241, but may be formed inclined rather than parallel.

Accordingly, the sliding movement of the intermittent cam member 231 and the intermittent gear 253 with respect to the intermittent shaft 241 may be performed by the pressure and the elastic restoring force of the elastic member 255.

Although the slot pin 257 has been described as one, the plurality of slot pins 257 may be formed at a spaced apart position to guide the cam member 210 or the intermittent gear 253 to be slidably slid with respect to the intermittent shaft 241.

The intermittent gear 253 is engaged with the intermittent cam member 231 to engage the chain gear 310 to transmit the rotational force of the driving unit 120 to the chain gear 310. The intermittent gear 253 may slide between the chain gear 310 and the bite position and the bite release position with respect to the intermittent shaft 241 by the elastic member 255.

In this embodiment, the intermittent cam member 231 and the intermittent gear 253 have been described as being integrally formed, but are manufactured to each other within a range that does not impair the function of the present invention. It can be changed so that the sliding movement while rotating about the axis 241 at the same time.

The elastic member 255 is supported by the snap ring 251 of the intermittent shaft 241 to provide an elastic force for pressing the intermittent cam member 231 and the intermittent gear 253.

That is, in the aforementioned power control unit 200, the rotational motion of the driving unit 120 is converted into a linear motion in the cam member 210, and the linear motion is guided by the sliding slot 259 and the slot pin 257. It may be made in the axial direction of the intermittent shaft 241, the restoration or release to each position according to the linear motion may be made by the elastic member 255.

The chain operation part 300 includes a chain gear 310 that meshes with the intermittent gear 253 to transmit power, a chain gear shaft 313 which is a rotation center of the chain gear 310, and a chain gear shaft 313. Is coupled to the chain having a chain sprocket 315 for transmitting a rotational force to the chain 317 by the rotation of the chain gear (310).

Here, it may further include a support bracket 261b, as shown in Figures 2 and 4 coupled to the housing 110 in the front and rear direction of the figure to support the chain operating portion 300 from above.

As a result, the rotation of the chain sprocket 315 may open or close the window 10 coupled to the outer end of the chain 317 by coming out of the housing 110 or entering the housing 110.

As shown in FIGS. 2 and 5, the chain movement limiting unit 320 provides a force that resists the moving or rotating operation of the chain operation unit 300 while the chain 317 moves. The chain movement limiting unit 320 may be provided at various positions, but as an example, the locking groove 321 formed in the chain gear shaft 313 and the housing 110 are coupled to the locking groove 321 to be engaged with the chain operation unit ( It is provided with an elastic protrusion 323 to provide a resistance to the 300.

As an example of the elastic protrusion 323 is a cylindrical case 323a coupled to the housing 110 as shown in the partial enlarged view of FIG. 5, and a ball 323b coupled to one side of the inner side and engaged with the locking groove 321. A ball spring 323c for elastically pressing the ball 323b and a fixing nut 323d for adjusting the elastic force of the ball spring 323c and supporting the ball spring 323c to the case 323a may be provided. have.

The operation of the chain movement restriction unit 320 having such a configuration will be described with reference to FIG. 5 as follows.

For example, the window opening and closing apparatus 100 according to the present invention opens or closes the window 10 at a driving range by moving the window 10 in a predetermined range (moving by “STROKE” between the “Y1” position and the “Y0” position in FIG. 5). When stopped in the process of opening and closing, when the external force (see "F1" in Figure 5) is acting, the chain sprocket 315 coupled to the chain 317 by the force transmitted to the chain 317 coupled to the window 10 If this rotation is to be attempted, the chain gear must overcome the resistance force (see “F2” in FIG. 5) due to the engagement of the engaging groove 321 and the elastic protrusion 323 acting in the axial direction of the chain gear shaft 313. The force to rotate the shaft 313 (see “Fr” in FIG. 5) is generated. Therefore, unlike the prior art, the resistance force F2 may be further generated to maintain the open / close state of the window 10 more stably.

That is, in the prior art, there is a fear that the window 10 is opened or closed even by a very small force, for example, a small force acting on the window 10.

On the contrary, according to the present invention, when wind is applied to the window 10 by wind pressure or a person who is somewhat lacking in discrimination, such as a child, inadvertently contacts the chain 317 of the window 10 in the de-energized position or the power transmission position. Since the window 10 can be closed by a very small external force, a safety accident that can occur even by a very small force, and the opening and closing of an undesired window can be prevented with the chain movement limiting unit 320.

As shown in FIG. 6, the chain position fixing unit 330 may include a chain 317 in a chain casing not shown in the housing 110 in which a chain sprocket 315 for powering the chain 317 is accommodated in the housing 110. In the process of movement, the window 10 coupled to the chain 317 remains in the open open position (see position "A1" in FIG. 6) and the closed position in the window 10 (see position "A0" in FIG. 6). The chain attachment 319 and a chain casing (not shown) are provided.

That is, as shown in Figure 6, the chain position fixing portion 330 is the open position in which the outer end of the chain 317 is moved from the housing 110 to open the window 10 (see "A1" in Figure 6) And the chain that is the inner end of the chain 317 in the closed position (see “A0” in FIG. 6) where the end of the chain 317 is close to the housing 110 and the window 10 is coupled to the window frame 20 and closed. A locking groove 331 is provided to engage a ball (not shown) of the elastic protrusion with a guide provided to guide the chain and the elastic protrusion (not shown) coupled to the attachment 319. Here, the configuration of the locking groove 331 and the elastic protrusion 333 is the same as the configuration of the chain movement limiting unit 320 shown in Figure 5, so the reference numerals are different, but the description is omitted. On the contrary, the chain attachment 319 may be provided with the locking groove as necessary or in accordance with the structure.

Thus, when the window 10 is in the open position and the closed position, when the external force acts below the resistance set in the chain position fixing portion 330 by the chain position fixing portion 330 according to the present invention, the window 10 is It can maintain an open state or a closed state to maintain a more stable state. That is, for example, when a predetermined pressure is applied to the inside of the window 10 for dehumidification, even when the air pressure provided inside the window 10 is not opened can maintain the dehumidification state, even in the open state below a certain external force The window 10 is not closed by the force of, for example, it is possible to stably perform the exhaust gas inside the window 10.

The controller (not shown) controls the operation of the driving unit 120 based on information of various rotation speed sensors, a position sensor of the window 10, a chain position sensor, and the like, which are not shown.

In addition, the control unit detects a state in which the window 10 reaches a target position where the window is opened or closed, and operates the driving unit 120 to control the cam member 210 to move to the power release position. Thus, in a state in which the window opening and closing device 100 is open or closed, the user may manually open and close the window 10.

That is, according to the present invention, it is possible to provide a window opening and closing device 100 capable of automatically opening and closing the window 10 easily or manually.

Reference numeral 127 denotes a plate-shaped driving bracket provided to support the driving unit 120 and to be coupled to the housing 110.

The operation of the window opening and closing apparatus 100 according to the present invention having such a configuration will be described with reference to FIGS. 1 to 4 as follows.

First, assume that the window 10 coupled to the window frame 20 as shown in Figure 1 operates the window opening and closing device 100 from the closed position to the open position.

First, when external or internal emergency power is applied, the power control unit 200 moves from the power release position as shown in FIG. 2 to the power transmission position as shown in FIG. 4 as shown in FIG. do. Referring to the process of the power control unit 200 moves from the power release position to the power transmission position in more detail as follows.

First, assuming that the drive shaft 123 rotates in the counterclockwise direction in which the axis of rotation of the drive shaft 123 is vertically viewed from the right side in the state as shown in FIG. 2, the drive shaft 123 is connected to the drive shaft 123. When the combined driving cam member 211 rotates and the engaging portion 213 coupled to the bottom dead center 233a rotates and moves to the top dead center 233b via the inclined portion 233c, the intermittent cam member 231 is rotated. It is guided by the sliding slot 259 and the slot pin 257 to the right, which is a position away from the drive cam member 211, and slides along the axial direction of the intermittent shaft 241. In this process, the driving cam member 211 performs a sliding movement while partially rotating together with the intermittent shaft 241. In this process, the elastic member 255 is contracted toward the snap ring 251 along the longitudinal direction of the intermittent shaft 241.

Accordingly, the intermittent gear 253 coupled with the intermittent cam member 231 moves to the right while rotating, meshes with the chain gear 310, and the power of the driving unit 120 is transmitted to the chain gear 310.

The chain gear shaft 313 rotates by the rotation of the chain gear 310, and the chain 317 protrudes from the housing 110 by the rotation of the chain gear shaft 313 to push the window 10 while pushing the window 10. ) Can be opened.

That is, the distance between the top dead center 233b and the bottom dead center 233a which are the distances moved by the cam action between the cam members 210 (see “X1” in FIG. 4) and the slots along the sliding slots 259. The distance the pin 257 has moved (see “X2” in FIG. 4) and the distance between the intermittent gear 253 and the disengaged position from the engagement position with the chain gear 310 (see “X3” in FIG. 4). ) And the distance that the elastic member 255 is contracted (see "X4" in FIG. 4) are preferably the same.

When it is detected that the window 10 is opened to a desired position, the controller stops the counterclockwise rotation of the driving unit 120 and rotates the cam member 210 in the clockwise direction which is reverse rotation.

When the locking portion 213 of the driving cam member 211 rotates from the bottom dead center 233a to the top dead center 233b via the inclined portion 233c, the intermittent cam member 231 is simultaneously shown in FIG. It moves to the left along the rotation axis direction of the intermittent shaft 241 to a position. The force to which the intermittent cam member 231 is moved to the left side is provided by the elastic force of the elastic member 255.

The degree or range of rotating the driving unit 120 in the counterclockwise direction may be controlled by the controller based on a sensor (not shown) in which the driving unit 120 is rotated.

While repeating this process, the power control unit 200 is a power transmission position and a power release position for transmitting and releasing power between the drive unit 120 and the chain drive unit 120 or the control gear 253 and the chain gear 310 of You can move between the engagement position and the disengagement position.

In addition, in the assembling process, the upper and lower housings 110 and the lower housing 110 are coupled to each other based on a surface perpendicular to the horizontal plane of the rotation axis of the driving shaft 123 or the intermittent shaft 241 of FIG. 2. The process of assembling the device 100 will be described schematically.

First, the lower housing 110 is positioned to support the chain 317 at the lower end, and couple the chain case (not shown) to which the chain sprocket 315 coupled to the chain 317 is coupled. Next, the chain gear 310 is coupled to the chain gear shaft 313 or the chain gear 310 and the chain gear shaft 313 which are integral with each other are coupled to the chain sprocket 315.

The bearing support member 261b supporting the upper side of the chain gear shaft 313 and supporting the intermittent shaft 241 is preferably coupled to the lower housing 110b.

Next, the snap ring 251 and the elastic member 255 are coupled to the intermittent shaft 241, the intermittent cam member 231 and the intermittent gear 253 are sequentially coupled to each other, and the slot pin 257 of the intermittent shaft 241 is coupled with the snap ring 251. Coupling to the pinhole 245 and coupling the bearing 261 to the end makes one packaged to modular power interruption 200.

One such packaged to modular power interrupter 200 may be simply assembled by being located in a bearing support groove (not shown) and bearing support member 261b of the lower housing 110b supporting the bearing 261.

Then, the driving unit 120 is coupled to the driving unit bracket 217 and the driving cam member 211 is fixed to the driving shaft 123 using the fixing member 125.

The driving unit 120 side is fixed to the groove (not shown) of the lower housing 110b to which the driving unit bracket 217 may be fixed.

In this state, the controller may be fixed to the lower housing 110b and the upper housing 110a may be coupled to the lower housing 110b. That is, the bearing 261 supporting the intermittent shaft 241 and the bracket 217 of the driving unit 120 may be supported in the lower housing 110b and the upper housing 110a by half.

In addition to the above-described embodiment, the intermittent gear 253 may be disposed on the right side of the chain gear 310 without being present on the left side of the chain gear 310 of FIGS. 2 and 4. In this case, the power control unit 200 is provided in a long form, the operation of the elastic member 255 and the power control unit 200 described above is easy from the above-described embodiment by those skilled in the art. Since it can be understood, it will not be described in detail below.

In this case, however, the shape of the cam member 210 may be protruded corresponding to the top dead center of FIGS. 2 and 4 from the recessed cam member. It is preferable that the locking portion can be located at the bottom dead center on both wall sides of the region which is rotated and recessed in the power transmission position. In this case, the control unit may control the rotation of the driving unit to engage the top dead center with the locking unit to position the power interruption unit to the power release position.

Therefore, the package 110 may be coupled to the housing 110 in one packaged or modularized unit, thereby simplifying and assembling work and improving economic efficiency.

The present invention having such a configuration can provide a window opening and closing device that is simple and simple in structure, can reduce the number of parts, and can prevent a factor of failure in advance. In addition, it is easy to manufacture, assemble, etc., and can improve economics, and it does not use a lot of electrical parts, thus preventing the occurrence of failure factors.

In addition, the assembly parts may be easily packaged or modularized to be easily assembled, and may be stably maintained even in a minute external force in the open state, and safety accidents may be prevented. It is also possible to maintain a stable position in the open or closed position of the window.

The above-described embodiment is one embodiment and the present invention can of course be made in various embodiments.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the invention. will be. The scope of the invention will be determined by the appended claims and their equivalents.

100: window opener 10: window
20: window frame 110: housing
120: drive unit 123: drive shaft
125: fixing member 127: drive bracket
200: power control unit 210: cam member
211: drive cam member 213: locking portion
231: intermittent cam member 233: bite portion
233a: Bottom dead center 233b: Top dead center
233c: slope
241: intermittent shaft 243: ring groove
245: pinhole 251: snap ring
253: intermittent gear 255: elastic member
257: slot pin 259: sliding slot
261: Bearing
300: chain operation part 310: chain gear
313: Chain gear shaft 315: Chain sprocket
317: Chain 319: Chain Attachment
320: chain movement restriction unit 330: chain position fixing

Claims

A drive unit supported by a housing coupled to the window to provide forward and reverse rotational power;
A chain operation part provided to allow the chain to enter and exit the housing;
It is possible to move between the power transmission position where the power of the drive unit is transmitted to the chain operation unit and the power release position where the power of the drive unit is released to the chain operation unit, and interlocked to convert the rotational movement of the drive unit to linear movement. A power control unit having a cam member;
And an elastic member for elastically pressing the cam member to the power release position or the power transmission position.

The method of claim 1,
The cam member includes a driving cam member coupled to the driving unit, and an intermittent cam member engaged with the driving cam member.
The power control unit is coupled to the housing window opening and closing device further comprises an intermittent shaft for supporting the intermittent cam member so as to slide.

The method of claim 2,
One of the intermittent shaft and the intermittent cam member further includes a sliding slot for guiding the intermittent cam member to be slidable with respect to the intermittent shaft.

The method of claim 2,
In the power transmission position, one side is coupled with the intermittent cam member and the other side is coupled with the chain operation unit, and in the power release position, one side is coupled with the intermittent cam member and the other side is decoupled with the chain operation unit. The window opening and closing device further comprising an intermittent gear supported on the intermittent shaft.

5. The method of claim 4,
The chain operation part includes a chain gear shaft rotatably coupled to the housing, a chain gear coupled to one side of the chain gear shaft and engaged with the intermittent gear, and a chain supported on the other side of the chain gear shaft to open and close a window. Window opening and closing device comprising a chain sprocket for driving the chain by combining.

The method of claim 1,
The chain operation unit includes a window opening and closing device provided in the chain operation unit and the housing in the process of moving the chain movement limiting portion provided to provide a force to resist the rotational force of the chain operation unit. .

The method of claim 1,
In the chain operation portion, the end of the chain is moved from the housing so that the window is opened and the end of the chain is close to the housing so that the window is closed in the closed position where the window is closed and interlocked with the chain. A window opening and closing device comprising a chain position fixer arranged to provide a force to withstand.

The method of claim 1,
By detecting the state of the chain or the drive unit that the window is opened or closed,
And a control unit which operates the driving unit to control the cam member to move to the power release position.