KR101921151B1 - Auto ventilating apparatus for sliding windows and doors - Google Patents

Abstract

The present invention can be quickly and easily installed and used without being influenced by the standard of the existing window frame or the situation of the window, and it is also possible to use a sliding-type Discloses an automatic ventilation device for windows.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic ventilation apparatus for a sliding window,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic ventilation apparatus for a sliding window, and more particularly, to an automatic ventilation apparatus for a sliding window which is provided with a fixed window and a moving window inside a window frame, A rectangular or rectangular case in which a space is formed therein and a predetermined opening is formed in a front surface thereof; A driving motor provided inside the case so that a rotating shaft thereof faces the ground, and a spiral worm is formed on an outer circumferential surface of the rotating shaft; A worm wheel provided within the case and rotated through a rotational force of the driving motor in engagement with the worm; The worm wheel is coupled to a driving shaft which is fitted in the center of the worm wheel, and an outer circumferential surface of the worm wheel is installed along the longitudinal direction of the bottom surface of the window frame to closely contact a rail for a fixed window, which guides the fixed window, A driving wheel for opening and closing the moving window while rotating along the traveling window; A plate-shaped body that is in close contact with an outer circumferential surface of the case and has a bent piece vertically formed at an upper end thereof, a close-fitting piece formed by bending vertically from one side edge and a lower edge of the body, And a fixing bracket formed of a " B " -like fixture bent from the end portion of the fastening piece and composed of a fitting piece that is fitted in a rail groove formed on the side and bottom of the moving window frame, Wherein when the case is fixed to the moving window frame through the bracket and then the driving motor is driven, the driving wheel is moved forward or backward according to the rotating direction of the driving motor to open and close the moving window to ventilate the room. Type automatic window ventilator.

Generally, a window (window) refers to various windows or doors installed in an opening (opening) such as a window or an entrance to block the inside of the building from the outside. In a building, a window separates the room from the outside It serves as a wall and serves as a supply passage for sunlight and fresh outside air, and is an essential component that allows people in the room to feel a sense of perspective and openness.

Recently, due to the improvement of the performance of building technology and building materials, the windows and doors have excellent airtightness, so the indoor air flow as well as the outdoor air inflow are tightly interrupted, so that the cooling and heating efficiency is excellent. However, It causes the breeding of the mold on the windowpane and threatens the hygienic environment. It causes respiratory diseases because various gas, dust, smoke, odor and bacteria are always present in the room.

In addition, there is a growing interest in fine dust generated by the frequent increase of dust and fine dust, cooking or cleaner, and the demand for automatic ventilation system that provides a more convenient and comfortable indoor environment is increasing rapidly.

In addition, in the case of newly constructed buildings, if they stay in an enclosed space with insufficient ventilation for a long time, they will be released in a state containing environmental pollutants harmful to human bodies such as formaldehyde, organic solvents, , Atopic dermatitis, and the like. However, in order to solve these problems, the windows (windows and doors) are opened periodically to remove and renew the indoor air.

However, the existing ventilation facilities are bulky, and the specifications of the windows are different for each building, so that the products are produced and supplied only by customized production in the production factory, so they are widely popularized, and the limit is very large. Foreign substances such as rain, sand, and soil easily flow into the room due to the weather changes such as typhoons, showers, and dusts, and the flow of air flowing through the windows is not natural, Not only the heat efficiency is rapidly lowered but also adversely affects the health of the elderly and infants who are weak in immunity and the patient's health.

Conventionally, in order to improve the lack of ventilation of the indoor space, a window has been directly opened, but recently, a mechanical device has been used to automatically open a window to allow ventilation.

As an example of such a mechanical device, in Korean Utility Model Registration No. 288384, a driving pulley driven by a motor is mounted on one side of a window frame, a driven pulley is mounted on the other side, and a belt And a window or a door of a window is fixed to the above-mentioned belt or timing belt.

That is, as the motor rotates in the forward and reverse directions, the belt or the timing belt moves in one direction to move the window or the door.

Such a conventional apparatus as described above requires a large number of parts such as bearings, bearing housings, brackets, covers for covering all the accessories, and the like for the mandrel mounting of the drive pulley and the driven pulley, There is a problem. Also, as it is made up of numerous accessories, construction and maintenance required professional technicians or skilled technicians. On the other hand, when one of the parts is damaged or broken, the maintenance is complicated and the entire window opening / closing device is frequently replaced and mounted, which causes a problem that a large expenditure is required.

Next, Korean Utility Model Registration No. 324668 discloses a structure in which a drive motor is mounted on one side of a window frame, a plurality of bevel gears and other gears are mounted, a pinion is formed on the window or door of a window, Bevel gears are used to open or close the windows or doors by being transferred to the windows or doors. However, in the above-described conventional example of the above-described conventional device, there is a case where the driving motor is overloaded due to a large power loss due to the power being transmitted by various bevel gears and other gears through various paths. Further, a window opening and closing apparatus including a driving motor, a plurality of bevel gears, and other gears is installed in a protruding form on one side of a window, which is not preferable.

In recent years, in order to reduce the energy consumption, the insulation performance of the residential building has been improved, but the natural ventilation has been made difficult and the indoor air quality has been deteriorated. Therefore, for the pleasant indoor air, Ventilation is considered to be very important. In order to improve the indoor air quality of residential buildings, natural ventilation of the residential buildings or the installation of the mechanical ventilation facilities is legally required, but this has a problem of increasing the energy consumption of the residential buildings relatively.

The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a sliding window system which can be installed and used quickly and easily without being influenced by the size of a window frame, And it is an object of the present invention to provide an automatic ventilation device of a sliding window which can be conveniently used without the help of other people.

In order to achieve the above-mentioned object, the present invention provides an automatic ventilation apparatus for a sliding window, which includes a fixed window and a moving window inside a window frame and opens and closes the moving window, A rectangular or rectangular case in which a predetermined opening is formed in a front surface thereof; A driving motor provided inside the case so that a rotating shaft thereof faces the ground, and a spiral worm is formed on an outer circumferential surface of the rotating shaft; A worm wheel provided within the case and rotated through a rotational force of the driving motor in engagement with the worm; The worm wheel is coupled to a driving shaft which is fitted in the center of the worm wheel, and an outer circumferential surface of the worm wheel is installed along the longitudinal direction of the bottom surface of the window frame to closely contact a rail for a fixed window, which guides the fixed window, A driving wheel for opening and closing the moving window while rotating along the traveling window; A plate-shaped body that is in close contact with an outer circumferential surface of the case and has a bent piece vertically formed at an upper end thereof, a close-fitting piece formed by bending vertically from one side edge and a lower edge of the body, And a fixing bracket formed of a " B " -like fixture bent from the end portion of the fastening piece and composed of a fitting piece that is fitted in a rail groove formed on the side and bottom of the moving window frame, The case is fixed to the moving window frame via the bracket and then the driving motor is driven so that the driving wheel is moved forward or backward according to the rotating direction of the driving motor to open and close the moving window to ventilate the room, Is fixed to one side of the rotating shaft of the driving motor, Performed securely fixed axis which is fixed with; An auxiliary wheel fitted to the fixed shaft and rotatably fitted to the fixed shaft via a bearing provided therein; A pulley which is fitted to the rotating shaft and the fixed shaft of the driving motor; And a chain connecting the pulley inserted into the rotary shaft of the driving motor and the pulley inserted into the fixed shaft. When the driving wheel rotates through the rotational force of the driving motor, the auxiliary wheel rotates together with the driving wheel, And a stopper for stopping the moving window by stopping the power of the driving motor when the moving window approaches the fixed window by detecting the moving distance of the moving window by a predetermined distance on the side of the case to prevent breakage, A fixing bolt which is inserted to penetrate through one side of the body and has an end which is in close contact with the inner circumferential surface of the moving window frame so as to firmly fix the fixing bracket and the moving window frame; Is tightly fitted to the upper end of the case so as to adjust the tension between the driving wheel and the rail for the fixed window The fixing bracket can be firmly brought into close contact with the moving window frame through the fixing bolt by fitting the body into the moving window frame via the fitting piece including the bolt, and tightening or loosening the tension adjusting bolt, So that the driving wheel can be firmly brought into close contact with the outer peripheral surface of the rail for the fixed window.

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Further, the present invention is characterized in that it comprises a belt which is coupled to enclose the driving wheel and the auxiliary wheel and increases the ground contact area with the rail for the fixed window so as to enable precise control when opening and closing the moving window.

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According to the present invention as described above, the case is fixed to the moving window frame via the fixing bracket, the fixing bracket and the moving window frame are fixed through the fixing bolt, the tension adjusting bolt and the elastic spring, The tension can be adjusted quickly and easily.

In addition, since the movable window can be opened and closed through the control of the driving motor, not only the general person but also the socially weak people whose behavior is inconvenient can be used conveniently without help of others. Therefore, even when the size of the moving window is large or heavy, it is possible to smoothly open and close the moving window, and it is possible to control more precisely when the moving window is opened and closed by increasing the ground contact area with the rail for the fixed window through the belt that surrounds the driving wheel and the auxiliary wheel There are advantages.

In addition, when the moving window approaches the fixed window through the stopper provided on the side of the case, the moving window is stopped by shutting down the power of the driving motor, thereby preventing damage to the product or the window .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a sliding window type automatic ventilation apparatus according to an embodiment of the present invention; FIG.
3 to 4 are views showing examples of an automatic ventilation apparatus of a sliding window according to another embodiment of the present invention.
5 is an exemplary view of an automatic ventilation device of a sliding window according to another embodiment of the present invention.
Fig. 6 is a schematic view showing the principle that the present invention is mounted on a moving window frame; Fig.
7 is a use state view of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an automatic ventilation apparatus for a sliding window according to the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, a sliding window is a window frame in which two or more windows (or doors) are arranged in a lateral direction within a window frame (or a fixed frame), and a window (Or door) is slid and opened. In order to facilitate a detailed description or understanding of the present invention, the window is described with reference to a window provided with one fixed window 2 and one movable window 5 inside the window frame 1, The present invention is not limited to the scope of the present invention.

The automatic ventilation device of the sliding window type window according to the present invention can help to pursue health and pleasant life by circulating and managing the indoor air quality through the ventilation of the automatic window, It is possible to install and use it quickly and easily without being affected by the situation. It is possible to safely protect the room from intrusion when the moving window is opened and to open and close the moving window through the power of the driving motor. The object of the present invention is to provide an automatic ventilation device of a sliding window which is characterized by that the social weak persons who are inconvenienced in the behavior are also usable without any help from others.

The worm wheel 300, the driving wheel 400, and the fixing bracket 500. The worm wheel 300 includes a case 100, a driving motor 200, a worm wheel 300, a driving wheel 400, and a fixing bracket 500.

1 and 2, the case 100 is fixed to the moving window frame 6 via the fixing bracket 500. A space is formed in the case 100 and a predetermined opening 110 is formed in the front surface. A rectangular or rectangular shape is formed.

The driving motor 200 has a spiral worm 210 formed on an outer circumferential surface of a rotating shaft. The driving motor 200 is provided inside the case 100 and has a rotating shaft facing the ground.

In the present invention, the driving motor 200 may use a geared motor (deceleration motor) to reduce the rotation speed and increase the force to smoothly open or close heavy or large windows. For example, when a user who has low ability of a user, such as a young child or an elderly person, opens and closes a moving window, it is preferable to reduce the rotational speed of the driving motor because the moving window may quickly clog when the hand or foot is caught on the window frame. Also, if the moving window is large and heavy, the power of the driving motor should be further increased, so it is better to use a geared motor.

In addition, the present invention can electrically connect the driving motor 200 to a window or a sensor (not shown) installed outside the window, thereby opening and closing the window according to the operation of the sensor. For example, an air pollution detection sensor (not shown) for detecting the degree of contamination of air in the air is installed and a controller (not shown) for transmitting and receiving the air pollution detection sensor is installed. Then, the controller and the drive motor are electrically connected The driving motor may be operated according to a predetermined value (air pollution degree) in the controller to ventilate the room through automatic opening and closing of the window.

Next, a worm wheel 300 is provided in the case 100 to be rotated by the rotational force of the driving motor in engagement with the worm. A drive shaft 310 having a predetermined length is inserted in the center of the worm wheel, (310) protrudes outward through the opening (110).

The drive wheel 400 is fitted to the drive shaft 310 and is mounted on the bottom surface of the window frame along the longitudinal direction to closely contact the rail 4 for the stationary window, 200 to open and close the moving window 5 while rotating along the rail 4 for the fixed window.

The driving wheel 400 may be made of any one of rubber, leather, artificial leather, soft PVC, or silicone to prevent an error in opening and closing of the moving window by skidding or sliding and improving frictional force with the moving window frame A friction pad (not shown) may be formed on the outer circumferential surface of the friction pad, and a plurality of friction protrusions may be formed on the outer circumferential surface of the friction pad to further improve frictional force.

The fixing bracket 500 includes a plate-shaped body 510 which is in close contact with an outer circumferential surface of one side of the case and has a bent piece 511 vertically formed at an upper end thereof, And a fitting piece 521 which is bent perpendicularly from the end portion of the tightening piece and is fitted in a rail groove 7 formed on the side and bottom of the moving window frame, Quot; C " fixture 520 composed of a " C "

The rail grooves 7 are generally formed by arranging a plurality of rail grooves having a predetermined width along the longitudinal direction at regular intervals so as to accommodate the rails formed on the window frame at four corners of the window. Is to show that the fixing brackets according to the present invention are inserted into the rail grooves formed on the side and bottom surfaces of the moving window frame to support the fixing brackets. The number of the rail grooves The form is not limited to the scope of the present invention.

The rear surface of the body 510 is in close contact with the inner circumferential surface of the moving window frame 6 and is supported by the moving window frame through the fitting piece and fixed to the moving window frame 6 through the fixing bolt So as to support the case closely adhered to the front surface.

The fitting piece 522 formed on the side surface of the body is inserted into the rail groove 7 formed at the side of the moving window frame to support the body, and the fitting piece 522 'formed from the bottom edge of the body The driving wheel 400 is mounted on the fixed window rail 4 and naturally supports the fixing bracket 500. Therefore, when the rail groove 7 'is formed on the bottom of the moving window frame, Can be prevented from being detached.

In the present invention, the width of the fitting piece 522 is such that the body 510 and the moving window frame 6 are spaced apart from each other by a predetermined distance when the fitting piece is inserted into the rail groove 7, It is possible to quickly and easily complete the operation of fitting the fixing bracket on the side surface and the bottom surface of the moving window frame, and then the case can be fixed to the moving window frame through the fixing bolt B1. The present invention including the fixing bracket 500 is advantageous in practicality and workability since the case can be fixed irrespective of the standard size (size) of the existing window.

Further, the present invention may further comprise a wireless controller (not shown) electrically connected to the driving motor so that the elderly, the patient or the child can easily open and close the window. Here, the wireless controller (not shown) may be a device that drives a driving motor in a place where a window is simply installed, such as a remote control in a narrow range, and may be a device that is based on Internet Of Things (For example, a smart phone or a notebook computer capable of wireless Internet) by controlling the driving motor from the outside to allow the moving window to be opened or closed.

3 to 4, a fixed shaft 610 having a predetermined length is provided on the inner wall of the case according to the present invention in parallel with the driving shaft on the side of the rotating shaft, An auxiliary wheel 600 formed into a diameter is inserted. The auxiliary wheel is provided with a bearing (not shown) to be inserted into the fixed shaft. A pulley 620 is fitted to the rotation shaft and the fixed shaft of the driving motor, and a pulley The pulley inserted into the fixed shaft is connected to the chain 630.

The reason why the auxiliary wheel 600 is further provided on the side surface of the driving wheel 400 is to increase the grounding area of the wheel that rotates along the rail 4 for the fixed window to prevent slipping of the wheel . For example, if a slip phenomenon occurs when only the driving wheel 400 is provided, the driving wheel 400 directly affects the opening and closing of the moving window. However, when the driving wheel 400 and the auxiliary wheel 600 rotate together, Even if one of the wheels slips, the other wheel can move along the rail for the fixed window to move the moving window. If the driving wheel and the auxiliary wheel are simultaneously rotated without being slid, the moving window can be moved more smoothly .

In addition, the present invention may further include a belt 640 coupled to wrap the driving wheel and the auxiliary wheel.

5, when the driving wheel 400 and the auxiliary wheel 600 are connected by the belt 640, the bottom surface of the belt 640 is always kept in contact with the rail 4 for the fixed window, The ground contact area with the rail can be sufficiently secured and the rail can be continuously rotated by the rotation force of the other wheel even if the slip of one wheel occurs. In addition, a plurality of fixed axles and auxiliary wheels may be provided in the case according to the size (length) or weight of the moving window, and when the fixed axle and the auxiliary wheels are provided in plural, .

The fixing bracket 500 and the moving window frame 6 are fixed to each other by a fixing bolt B1 and a fixing bolt B1 for fixing the tension between the driving wheel 400 and the rail 4 And a tension adjusting bolt B2.

The fixing bolt B1 is inserted through the one side of the body 510 and has an end portion of a predetermined length which comes in close contact with the inner circumferential surface of the moving window frame 6.

If the fixing bolt B1 is tightened, the distance between the fixing bracket and the moving window frame is gradually reduced, and when the fixing bolt B1 is loosened, the distance between the fixing bracket and the moving window frame is gradually widened.

The bolt hole may be formed in the body 510 so that the fixing bolt may be threaded through the inner circumferential surface of the body 510. The bolt B1 may be formed in a state in which the end portion is in close contact with the outer circumferential surface of the moving window frame 6 A protective cap (not shown) having an excellent frictional force can be provided at the end portion of the movable window frame because scratches may be generated or abraded on the outer circumferential surface of the movable window frame. In order to adjust the tension without using a tool such as a screwdriver, A bolt or a tongue bolt may be used.

The present invention is advantageous in that the case can be fixed to the moving window frame through the fixing bracket without being influenced by the size of the moving window frame 6 that has been conventionally installed through the fixing bolt B1, have.

The tension adjusting bolt B2 is vertically inserted through the bent piece 511 so as to penetrate the bent piece, and one end of the tension adjusting bolt B2 is in close contact with the upper end of the case 100. [ A nut (N) through which the tension adjusting bolt (B1) passes is provided at the upper end of the bending piece (511) to guide the tension adjusting bolt up and down.

When the tension adjusting bolt B2 is tightened, the case is lowered to the rail for the fixed window, so that the distance between the driving wheel 400 and the rail 4 for the fixed window is gradually narrowed. On the contrary, the tension adjusting bolt B2 is loosened The distance between the driving wheel 400 and the rail 4 for the fixed window is gradually widened because the main surface case 100 is raised toward the bending piece 511 side.

Since the tension adjusting bolt B2 is rotated in the forward or reverse direction with one end thereof being in close contact with the outer circumferential surface of the upper end of the case, scratches or wear may occur on the outer circumferential surface of the case. May be provided. Further, a knob may be formed on the other end of the tension adjusting bolt so that it can be tightened or loosened while being easily gripped by a finger.

Further, the present invention further includes an elastic spring (S) whose both ends are fixed to the bottom surface of the bending piece and the upper end of the case, respectively, and which provides an elastic force to pull the case toward the bending piece side.

When the case 100 is fixed to the moving window frame 6 through the fixing bracket 500 and then the tension adjusting bolt B2 is rotated to lower the driving wheel 400 to the fixed window rail 4, Since the elastic spring S pulls the case 100 toward the bending piece 511 side, the driving wheel 400 descends at a relatively slow speed. Therefore, there is an advantage that the height of the driving wheel can be finely adjusted when the tension is adjusted.

When the tension adjusting bolt B2 is rotated in the opposite direction to separate the driving wheel 400 from the rail for the fixed window, the driving wheel 400 is moved at a relatively high speed through the elastic force of the elastic spring S So that it is possible to perform the operation easily and promptly when the moving window is manually opened or closed or when the present invention is to be removed.

Next, in the present invention, a stopper 700 is provided on the side of the case so as to stop the moving window by blocking the power of the driving motor when the moving window approaches the fixed window by a preset distance, .

If the user does not check the position of the moving window 5 when the driving motor 200 is driven to open the moving window 5, the case 100 may be damaged by colliding with the fixed window frame 3 .

Of course, when the moving window 5 is completely closed, the possibility of collision may be low because the distance between the case 100 and the fixed window frame 3 is long. However, in a state where the moving window is opened by a predetermined distance, The position of the case must be confirmed. If the user pushes a button for opening the moving window by mistake when the controller is operated to close the moving window in a state where the moving window is opened by a predetermined interval, the case may be hit by the fixed window frame and may be damaged . Therefore, when the user opens the moving window, it is necessary to check the position of the case, so that it is troublesome and somewhat inconvenient.

According to the present invention, the stopper 700 for blocking the power of the drive motor 200 is mounted on the side of the case by detecting the position and movement of the surrounding objects, thereby enabling the user to open and close the moving window And it is possible to prevent the case from bumping against the fixed window frame when the moving window is opened, thereby significantly extending the service life of the product.

According to the present invention as described above, it is possible to quickly and easily install and use the fixing bracket, the fixing bolt, and the tension adjusting bolt without being influenced by the size and the situation of the window frame, It can be used conveniently without the help of other people. It is constructed so that the auxiliary wheel is rotated together with the driving wheel so that the size of the moving window is large or heavy It is possible to smoothly open and close, and there is a significant advantage that breakage can be prevented through a stopper provided on a side surface of the case.

1: window frame
2: Fixed window 3: Fixed window frame
4: Rail for stationary windows
5: Moving window 6: Moving window frame
7,7 ': Rail groove 8: Rail for moving window
100: Case 110: Open
200: drive motor 210: worm
300: Worm wheel 310: Drive shaft
400: drive wheel
500: fixing bracket 510: body
511: bending piece 520: fastener
521: close contact piece 522, 522 ': fitting piece
600: auxiliary wheel 610: fixed shaft
620: pulley 630: chain
640: Belt
700: Stopper
B1: Fixing bolt B2: Tension adjusting bolt
N: Nut
S: Elastic spring

Claims (5)

1. An automatic ventilation system of a sliding window which is provided with a fixed window and a moving window inside a window frame to open and close the moving window to ventilate the room,
A case 100 having a rectangular or rectangular shape in which a space is formed therein and a predetermined opening is formed on the front surface; A drive motor 200 having a rotating shaft disposed on the inside of the case and having a spiral worm 210 formed on an outer circumferential surface of the rotating shaft; A worm wheel 300 provided in the case and rotated through a rotational force of the driving motor in engagement with the worm; The worm wheel is coupled to a driving shaft which is fitted in the center of the worm wheel, and an outer circumferential surface of the worm wheel is installed along the longitudinal direction of the bottom surface of the window frame to closely contact a rail for a fixed window, which guides the fixed window, A driving wheel 400 for opening and closing the moving window while rotating along the traveling window 400; Shaped body 510 which is in close contact with the outer circumferential surface of one side of the case and is formed with a bent piece 511 perpendicularly to the upper side of the case and the side and rear sides of the moving window frame formed by bending vertically from one side edge and the bottom edge of the body, Shaped member 521 consisting of a close contact piece 521 which is in close contact with the bottom surface and a catch piece 522 which is bent perpendicularly from the end of the close contact piece and which is fitted in a rail groove formed on the side and bottom surface of the moving window frame And a fixing bracket 500 made of a fixing member 520. When the case is fixed to the moving window frame via the fixing bracket and then the driving motor is driven, the driving wheel moves forward or backward While opening and closing the moving window so as to ventilate the room,
A fixed shaft (610) having one end fixed to the inner wall of the case and fixed to the side of the rotating shaft of the driving motor in parallel with the driving shaft; An auxiliary wheel 600 fitted to the fixed shaft and rotatably fitted through a bearing provided therein; A pulley (620) fitted to the rotating shaft and the fixed shaft of the driving motor; And a chain (630) connecting a pulley fitted to a rotating shaft of the driving motor and a pulley fitted to a fixed shaft. When the driving wheel rotates through the rotational force of the driving motor, the auxiliary wheel (600) 400 to open and close the moving window,
A stopper 700 is provided on the side surface of the case for detecting movement of the movable window by a predetermined distance by a preset distance and stopping the power of the drive motor to stop the movable window to prevent breakage,
A fixing bolt (B1) inserted through the one side of the body and having an end fixed to the outer circumferential surface of the moving window frame so as to firmly fix the fixing bracket and the moving window frame; And a tension adjusting bolt (B2) for adjusting the tension between the driving wheel and the rail for the fixed window so that an end portion thereof is in close contact with the upper end of the case, so that the body is fitted to the moving window frame The fixing bracket can be firmly brought into close contact with the moving window frame through the fixing bolt and the driving wheel can be firmly brought into close contact with the outer circumferential surface of the rail for fixing windows by tightening or loosening the tension adjusting bolt to move the case up and down. The automatic ventilation device of the sliding-type window.
delete The motorcycle according to claim 1, further comprising a belt (640) coupled to wrap around the driving wheel and the auxiliary wheel and configured to increase a ground contact area with the rail for the fixed window to enable precise control during opening and closing of the moving window Automatic ventilation of sliding window.
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