JP7324820B2 - window opener - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window opening/closing device for opening and closing a window of a driver's cab or a conductor's cab of a railway vehicle.

Railroad vehicles such as trains have windows that can be opened and closed on both sides in order to let in light from the outside into the passenger compartment, change the air, or to check the start and stop of the vehicle from the driver's seat (conductor's compartment). ing. A so-called "drop window" that can be easily opened and closed vertically is known as the openable window. For opening and closing this "drop window", for example, a window opening and closing device as described in Patent Document 1 is used.

The window opening and closing device described in Patent Document 1 has a window that can be moved up and down within a frame, an arm is arranged under the window, the upper end of the arm supports the lower portion of the window, and the lower end of the arm is attached to the frame. It is rotatably connected to one side, a support member is fixed to the frame portion positioned below the arm, and a plurality of upper shaft holes are formed in the middle portion of the arm at appropriate intervals in the longitudinal direction of the arm. The supporting member is formed with an elongated upper hole having a horizontal corrugated surface on the lower side, and an urging means for urging the arm upward is provided between the arm and the supporting member at the upper front portion thereof. , and the lower end is engaged with the corrugated surface.

Japanese Patent Application Laid-Open No. 2004-211497

However, the above-described window opening/closing device has a problem that it is difficult to instantly raise and lower the window because the movement of the arm is restricted even if the window is to be raised and lowered instantaneously.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a window opening and closing device capable of instantaneously raising and lowering a window.

The above objects of the present invention are achieved by the following means. In addition, although the inside of parenthesis is attached with the reference code|symbol of embodiment mentioned later, this invention is not limited to this.

According to the invention of claim 1, the weight (14),
a window that can be raised and lowered (for example, a window glass W);
The window (e.g., window glass W) is supported at a predetermined position, and the window (e.g., window glass W) is provided on the upper peripheral frame (32) side of the window (e.g., window glass W). a key portion 31);
a guide frame (e.g., right vertical frame 21, left vertical frame 22) that guides the lifting of the window (e.g., window glass W);
an upper pulley (10) located on the upper side of the guide frame (for example, right vertical frame 21, left vertical frame 22);
a lower pulley (11) located on the lower side of the guide frame (for example, right vertical frame 21, left vertical frame 22);
a guide belt (for example, a timing belt 12) wound in a loop over the upper pulley (10) and the lower pulley (11);
A guide part (13) provided on the lower side of the window that can be raised and lowered,
The guide portion (13) is composed of an attachment piece (13a) and a guide piece (13b) attached to the attachment piece (13a),
The attachment piece (13a) is attached and fixed to the lower peripheral frame (6) of the window (for example, the window glass W),
The guide piece (13b) is supported while gripping one side (12a) of the looped guide belt (for example, the timing belt 12),
Grooves (21a1, 22a1) are formed in the left and right guide frames (eg, right guide rail 21a, left guide rail 22a) of the guide frame (eg, right vertical frame 21, left vertical frame 22),
The left and right peripheral frames (right peripheral frame 5a, left peripheral frame 5b) of the window (eg, window glass W) move up and down along the grooves (21a1, 22a1), so that the window (eg, window glass W) moves up and down. ) is guided up and down,
The weight (14) is
a weight body (14a);
a weight guide piece (for example, guide piece 14b) attached and fixed to the weight body (14a);
Left and right slide frames (for example, right slide frame 14d and left slide frame 14f) attached and fixed to the left and right side surfaces of the weight (14),
The weight guide piece (e.g., guide piece 14b) is supported while gripping the other side (12b) of the looped guide belt (e.g., timing belt 12),
The left and right slide frames (for example, right slide frame 14d and left slide frame 14f) are fitted in the left and right guide frames (for example, right guide rail 21a and left guide rail 22a),
When the support by the support portion (for example, the key portion 31) is manually released and the support portion (for example, the key portion 31) is gripped to lower the window (for example, the window glass W), the guide piece ( 13b) descends, and along with this, the guide belt (for example, timing belt 12) rotates, and the left and right peripheral frames (right peripheral frame 5a, left peripheral frame 5b) of the window (for example, window glass W) ) descends along the inside of the grooves (21a1, 22a1) , and the guide belt (eg, timing belt 12) rotates, so that the weight guide piece (eg, guide piece 14b) rises. At the same time, the left and right slide frames (for example, the right slide frame 14d and the left slide frame 14f) rise along the left and right guide frames (for example, the right guide rail 21a and the left guide rail 22a) so that the weight body (14a ) also rises, while
When the support portion (for example, key portion 31) is gripped manually and the window (for example, windowpane W) is lifted, the left and right peripheral frames (right peripheral frame 5a, left The peripheral frame 5b) rises along the grooves (21a1, 22a1), the guide piece (13b) rises, and the guide belt (for example, the timing belt 12) rotates accordingly. As a result, the weight guide piece (for example, guide piece 14b) descends, and the left and right slide frames (for example, right slide frame 14d and left slide frame 14f) move to the left and right guide frames (for example, right guide rail 21a and left guide rail 21a). By descending along the rail 22a), the weight body (14a) also descends,
The weight of the weight (14) is characterized in that it can be balanced with the window (for example, windowpane W).

Next, the effects of the present invention will be described with reference to the drawings. In addition, although the inside of parenthesis is attached with the reference code|symbol of embodiment mentioned later, this invention is not limited to this.

According to the first aspect of the invention, the support by the support portion (for example, the key portion 31) is manually released , and the support portion (for example, the key portion 31) is gripped to open the window (for example, the window glass W). When lowered, the guide piece (13b) descends, and along with this, the guide belt (for example, the timing belt 12) rotates, and the left and right peripheral frames (right peripheral frame 5a) of the window (for example, the window glass W) , left peripheral frame 5b) descends along the grooves (21a1, 22a1) , and the guide belt (eg, timing belt 12) rotates to move the weight guide piece (eg, guide piece 14b). rises, the left and right slide frames (for example, the right slide frame 14d and the left slide frame 14f) rise along the left and right guide frames (for example, the right guide rail 21a and the left guide rail 22a), thereby the weight body (14a) also rises. On the other hand, when the supporting portion (for example, the key portion 31) is gripped manually and the window (for example, the windowpane W) is lifted, the left and right peripheral frames (right peripheral frames 5a, The left peripheral frame 5b) rises along the grooves (21a1, 22a1), and the guide piece (13b) rises. As the weight guide piece (for example, guide piece 14b) descends, the left and right slide frames (for example, right slide frame 14d and left slide frame 14f) move along the left and right guide frames (for example, right guide rail 21a and left guide rail 22a). The weight body (14a) also descends by descending with the weight. As a result, according to the present invention, the window (for example, the window glass W) can be moved up and down without the use of an arm as in the conventional art. disappears. Furthermore, the weight of the weight (14) is balanced with the window (for example, the windowpane W), so that the window (for example, the windowpane W) can be stopped at an arbitrary position. Moreover, if such a weight (14) is provided, the weight of the window (for example, the window glass W) will be supported, so that the window (for example, the window glass W) can be lightly moved up and down. And according to the above structures, a window (for example, windowpane W) and weight (14) can be reliably moved to a perpendicular up-down direction.

Thus, according to the present invention , the window and weight can be reliably moved vertically, and the window can be lightly and instantaneously moved up and down.

1 is a front view of a state in which a window opening/closing device according to an embodiment of the present invention is incorporated inside a door of a driver's cab, viewed from the inside of the vehicle; 2 is a cross-sectional view taken along the line X1-X1 shown in FIG. 1; FIG. 2 is a cross-sectional view taken along the line X2-X2 shown in FIG. 1; FIG. It is a perspective view which shows the state which exposed the window opening/closing apparatus built into the inside of the door which concerns on the embodiment to the exterior. While showing the state where the window opening and closing device incorporated in the inside of the door concerning the same embodiment was made to expose outside, it is a front view showing the state where the window glass rose. While showing the state where the window opening and closing device incorporated in the inside of the door concerning the same embodiment was made to expose outside, it is a front view showing the state where the windowpane fell.

Hereinafter, one embodiment of a window opening/closing device according to the present invention will be specifically described with reference to the drawings. In the following description, when the directions of up, down, left, and right are indicated, they refer to up, down, left, and right when viewed from the front of the drawing.

<Overview of window opening/closing device>
As shown in FIG. 1, a window opening/closing device 1 is incorporated inside a door 2 that exemplifies a cab of a railway vehicle.

<Description of the door>
Specifically, as shown in FIG. 1, the door 2 is integrally connected to an upper lateral frame 20 formed in a straight line and the right end portion of the upper lateral frame 20, and is formed in a straight line extending vertically downward. The right vertical frame 21 connected to the upper horizontal frame 20, the left vertical frame 22 integrally connected to the left end of the upper horizontal frame 20 and formed in a vertically downward straight line, and the lower ends of the right vertical frame 21 and the left vertical frame 22 are connected. It is mainly composed of a lower horizontal frame 23 formed in a straight line. As shown in FIG. 2, the upper lateral frame 20 has a substantially rectangular hollow shape inside. An outer plate 20c having a substantially L-shaped cross section is fixed by welding or the like to hide the vehicle outer side plate 20b from the outside.

As shown in FIG. 2, the upper lateral frame 20 formed in this manner has a curtain fixture 24 protruding toward the vehicle interior from the lower side surface of the vehicle interior side plate 20a. Furthermore, as shown in FIG. 2, the upper window frame 3 is attached to the lower portion of the upper lateral frame 20 via the attachment portion 25 so as to be vertically movable in the direction of arrow Y1 shown in FIG. More specifically, the mounting portion 25 includes a support piece 25a having a stepped shape in cross section and a hook attached to the support piece 25a with a screw NA. and a key receiving portion 25b having a shape.

On the other hand, the upper window frame 3 includes a support piece 30 having an L-shaped cross section shown in FIG. and an upper peripheral frame 32 which is hollow and substantially rectangular in cross section. As shown in FIG. 2, a stepped groove portion 32a is provided in the lower portion of the upper peripheral frame 32, and the upper edge portion Wa of the window glass W is fitted in the groove portion 32a via a pressing rubber 33. is As shown in FIG. 2, a door stop rubber 4 is provided between the upper peripheral frame 32 of the upper window frame 3 and the support piece 25a. It is fixed by gluing or the like.

Thus, the key portion 31 of the upper window frame 3 configured as described above is hooked and locked by the key receiving portion 25b of the mounting portion 25, whereby the window glass W is positioned as shown in FIG. becomes. Then, when the conductor or the like rotates the key portion 31 of the upper window frame 3 and removes it from the key receiving portion 25b of the mounting portion 25, the upper window frame 3 and the window glass W are removed together with the upper window frame 3 as shown in the direction of the arrow Y1 shown in FIG. can go up and down.

By the way, as shown in FIG. 1, the above-described upper peripheral frame 32 is attached to the upper peripheral edge of the window glass W. A right peripheral frame 5a is attached to the right side of the outer peripheral edge of the window glass W and is integrally formed in a vertical downward straight line shape. Further, the left peripheral frame 5b formed in a vertically downward straight line integrally attached to the left end portion of the upper peripheral frame 32 is attached to the left side of the outer peripheral edge of the window glass W, and the lower end and left side of the right peripheral frame 5a are attached. A lower peripheral frame 6, which is integrally attached to the lower end of the peripheral frame 5b, is attached to the lower portion of the outer peripheral edge of the window glass W. As shown in FIG.

Thus, the upper peripheral frame 32, the right peripheral frame 5a, the left peripheral frame 5b, and the lower peripheral frame 6 attached to the outer peripheral edge of the window glass W in this manner are arranged upwardly as shown in the direction of the arrow Y1 shown in FIG. When the window glass W moves up and down together with the window frame 3, they move up and down together. At this time, as shown in FIGS. 1 and 4, a concave groove portion 21a1 is formed inside the right vertical frame 21 so as to extend along the longitudinal direction of the right vertical frame 21 from the middle portion toward the bottom. A guide rail 21a is provided so as to protrude inward. Then, as shown in FIGS. 1 and 4, a concave groove (not shown) is formed inside the left vertical frame 22 so as to extend along the longitudinal direction of the left vertical frame 22 from the middle portion toward the bottom. A left guide rail 22a is provided so as to protrude inward. Thus, when the window glass W moves up and down together with the upper window frame 3, the right peripheral frame 5a attached to the right outer peripheral edge of the window glass W fits into the groove 21a1 of the right guide rail 21a, and the arrow shown in FIG. It will move in the Y2 direction. Furthermore, when the window glass W moves up and down together with the upper window frame 3, the left peripheral frame 5b attached to the left part of the outer peripheral edge of the window glass W is fitted into the groove (not shown) of the left guide rail 22a. is moved in the direction of the arrow Y2 shown in . As a result, when the window glass W moves up and down together with the upper window frame 3, the window glass W can reliably move vertically upward and vertically downward along the right guide rail 21a and the left guide rail 22a.

By the way, as shown in FIG. 3, the lower peripheral frame 6 is provided with a stepped groove 6a which is hollow and has a substantially rectangular cross section. The lower edge Wb is fitted.

Thus, as shown in FIGS. 1 and 3, the window opening/closing device 1 is incorporated in the lower portion of the lower peripheral frame 6. As shown in FIG. As shown in FIGS. 1 and 3, a decorative portion 7 is provided so that the window opening/closing device 1 cannot be seen from the outside.

As shown in FIG. 3 , the decorative portion 7 includes a vehicle-interior decorative plate 7 a having an elongated rectangular shape in cross section and positioned on the vehicle inner side, and a vehicle-exterior decorative plate 7 b having an elongated rectangular shape in cross section and positioned on the vehicle outer side. The vehicle-interior decorative plate 7a and the vehicle-exterior decorative plate 7b are each made of, for example, stainless steel. As shown in FIG. 3, the vehicle-interior decorative plate 7a has a lower portion 7a1 attached and fixed to the vehicle-interior side surface 23a of the lower horizontal frame 23 with a screw N1. As shown in FIG. 3, the upper portion 7a2 of the vehicle interior decorative plate 7a is attached and fixed to the mounting frame 8 with screws N2. As shown in FIG. 3, the mounting frame 8 is positioned on the vehicle inner side of the lower peripheral frame 6. As shown in FIG. It is composed of an inverted L-shaped mounting piece 8b in cross section, which is mounted and fixed to the lower surface of 8a with a screw N3. However, as shown in FIG. 3, the upper portion 7a2 of the vehicle interior decorative panel 7a is attached and fixed to the attachment piece 8b by screws N2. As a result, as shown in FIG. 1, the window opening/closing device 1 cannot be seen from the outside due to the interior decorative plate 7a.

On the other hand, the vehicle-exterior decorative plate 7b has its lower portion attached and fixed to the vehicle-exterior side surface of the lower horizontal frame 23 (not shown) with screws. As shown in FIG. 3, the upper portion 7b1 of the vehicle-exterior decorative plate 7b covers the upper portion of the windbreak memocket 9a positioned on the vehicle-exterior side of the lower peripheral frame 6. As shown in FIG. As a result, the window opening/closing device 1 cannot be seen from the outside due to the vehicle-exterior decorative plate 7b. As shown in FIG. 3, a moquette holder 9b is attached and fixed to the windshield moquette 9a with a screw N4.

<Detailed description of the window opening and closing device>
Here, the window opening/closing device 1, which is a feature of this embodiment, will be described in detail. As shown in FIGS. 1 and 3, the window opening/closing device 1 is mainly composed of an upper pulley 10 and a lower pulley 11. As shown in FIG. The upper pulley 10 is attached and fixed to the attachment piece 8b by a pair of screws N6, as shown in FIG. there is

Thus, a timing belt 12 is wound around the upper pulley 10 and the lower pulley 11 as shown in FIGS. As shown in FIG. 4, the timing belt 12 has a guide portion 13 attached to one side portion 12a (left side in the drawing) and a weight 14 attached to the other end portion 12b (right side in the drawing). there is

As shown in FIG. 5, the guide portion 13 has an inverted L-shaped mounting piece 13a fixed to the lower left portion of the lower peripheral frame 6 when viewed from the front, and as shown in FIGS. and a guide piece 13b attached and fixed to the lower end portion 13a1. As shown in FIGS. 4 and 5, the guide piece 13b is supported while gripping one side portion 12a of the timing belt 12. As shown in FIGS. As a result, when a conductor or the like rotates the key portion 31 of the upper window frame 3 shown in FIG. 13 is attached, the one side portion 12a of the timing belt 12, which is gripped and supported by the guide piece 13b of the guide portion 13, rotates between the upper pulley 10 and the lower pulley 11. Become. As a result, the guide portion 13 is guided by the one side portion 12a of the timing belt 12 so as to descend in the direction of arrow Y3 (vertically downward direction) shown in FIG. The attached upper peripheral frame 32, right peripheral frame 5a, left peripheral frame 5b, and lower peripheral frame 6 descend in the arrow Y3 direction (vertically downward direction) shown in FIG. At this time, the right peripheral frame 5a descends along the groove 21a1 of the right guide rail 21a shown in FIG. descends along the groove (not shown) of the left guide rail 22a. As a result, the window glass W is lowered to the position shown in FIG. At this time, as shown in FIGS. 5 and 6, the lower part of the right guide rail 21a is provided outside the vehicle so that the window glass W stops at the position shown in FIG. A right stopper 21 a 2 is provided, and a left stopper 22 a 2 is provided on the outside of the vehicle under the left guide rail 22 a so as not to come into contact with the weight 14 . As a result, the right peripheral frame 5a descended along the groove 21a1 of the right guide rail 21a shown in FIG. The left peripheral frame 5b that descends along the inside comes into contact with the left stopper 22a2. As a result, the windowpane W cannot descend any further, and stops at the position shown in FIG.

On the other hand, in order to return the window glass W to the position shown in FIG. 1, a conductor or the like grasps the key portion 31 of the upper window frame 3 shown in FIG. 6 and pulls it up in the arrow Y4 direction (vertically upward direction) shown in FIG. Then, the one side portion 12a of the timing belt 12 which is held and supported by the guide piece 13b of the guide portion 13 rotates between the upper pulley 10 and the lower pulley 11. As shown in FIG. As a result, the guide portion 13 is guided by the one side portion 12a of the timing belt 12 so as to rise in the direction of arrow Y4 (vertically upward direction) shown in FIG. The attached upper peripheral frame 32, right peripheral frame 5a, left peripheral frame 5b, and lower peripheral frame 6 rise in the arrow Y4 direction (vertical upward direction) shown in FIG. At this time, the right peripheral frame 5a rises along the groove 21a1 of the right guide rail 21a shown in FIG. rises along the groove (not shown) of the left guide rail 22a. As a result, the window glass W is raised to the position shown in FIG. The window glass W is positioned as shown.

The weight 14 has an H-shaped weight body 14a in front view as shown in FIG. As shown in FIG. 4, a guide piece 14b is attached and fixed to the right end portion 14a1 of the weight body 14a. The guide piece 14b is supported while gripping the other side portion 12b of the timing belt 12, as shown in FIGS. As shown in FIGS. 4 and 5, a rectangular right weight portion 14c is attached and fixed to the right end portion 14a1 of the weight body 14a. A vertically long rectangular right slide frame 14d is attached and fixed. As shown in FIG. 4, the right slide frame 14d is fitted in the right guide rail 21a so that it can slide in the arrow Y2 direction shown in FIG. Needless to say, when the right peripheral frame 5a moves up and down along the groove 21a1 of the right guide rail 21a shown in FIG. 4, it is set so as not to hit the right slide frame 14d.

On the other hand, as shown in FIGS. 4 and 5, a rectangular left weight portion 14e is attached and fixed to the left end portion 14a2 of the weight body 14a. A vertically long rectangular left slide frame 14f is attached and fixed. As shown in FIG. 4, the left slide frame 14f is fitted in the left guide rail 22a so that it can slide in the arrow Y2 direction shown in FIG. Needless to say, when the left peripheral frame 5b moves up and down along the groove (not shown) of the left guide rail 22a shown in FIG. 4, it is set so as not to hit the left slide frame 14f.

Thus, the weight 14 constructed in this manner is positioned on the side of the lower pulley 11 as shown in FIG. 5 when the windowpane W is positioned as shown in FIG. Then, when the window glass W descends in the direction of arrow Y3 (vertical downward direction) shown in FIG. , the other side portion 12b also rotates between the upper pulley 10 and the lower pulley 11. As shown in FIG. At this time, the guide piece 14b is supported while gripping the other side portion 12b of the timing belt 12 as shown in FIG. It is guided upward in the direction of arrow Y4 (vertically upward direction). At this time, the right slide frame 14d shown in FIG. 4 rises along the right guide rail 21a so as to move in the arrow Y4 direction (vertically upward direction) shown in FIG. rises along the left guide rail 22a. As a result, the weight 14 rises to the position shown in FIG.

On the other hand, when the window glass W rises in the direction of the arrow Y4 shown in FIG. 6, the one side portion 12a of the timing belt 12 rotates between the upper pulley 10 and the lower pulley 11, and accordingly the other side portion 12b. also rotates between the upper pulley 10 and the lower pulley 11 . At this time, as shown in FIG. 6, the guide piece 14b is supported while gripping the other side portion 12b of the timing belt 12, so that the weight 14 is attached to the other side portion 12b of the timing belt 12 as shown in FIG. It is guided downward in the arrow Y3 direction (vertical downward direction). At this time, the right slide frame 14d shown in FIG. 4 descends along the right guide rail 21a so as to reliably move in the arrow Y3 direction (vertical downward direction) shown in FIG. descends along the left guide rail 22a. As a result, the weight 14 descends to the position shown in FIG. 5, that is, the original position.

By the way, the weight of such a weight 14 is balanced with the window glass W and the upper peripheral frame 32, the right peripheral frame 5a, the left peripheral frame 5b, and the lower peripheral frame 6 attached to the outer peripheral edge of the window glass W. It is as heavy as it can be. That is, the upper peripheral frame 32, the right peripheral frame 5a, the left peripheral frame 5b, and the lower peripheral frame 6 attached to the outer peripheral edge of the window glass W together with the window glass W move in the direction of the arrow Y3 shown in FIG. 5 (vertically downward direction). 5, the weight 14 rises in the arrow Y4 direction (vertically upward direction) shown in FIG. Then, the upper peripheral frame 32, the right peripheral frame 5a, the left peripheral frame 5b, and the lower peripheral frame 6 attached to the outer peripheral edge of the window glass W together with the window glass W move in the direction of the arrow Y4 shown in FIG. 6 (vertically upward direction). 6, the weight 14 descends in the arrow Y3 direction (vertically downward direction) shown in FIG. Therefore, the weight of the weight 14 can be balanced with the window glass W and the upper peripheral frame 32, the right peripheral frame 5a, the left peripheral frame 5b, and the lower peripheral frame 6 attached to the outer peripheral edge of the window glass W. If the upper peripheral frame 32, the right peripheral frame 5a, the left peripheral frame 5b, and the lower peripheral frame 6 attached to the outer peripheral portion of the window glass W together with the window glass W are stopped in the middle, the pulley principle can be applied. will stop at that position.

However, by providing such a weight 14, the position of the window glass W can be stopped at an arbitrary position. In addition, if such a weight 14 is provided, the window glass W and the upper peripheral frame 32, the right peripheral frame 5a, the left peripheral frame 5b, and the lower peripheral frame 6 attached to the outer peripheral edge of the window glass W can be Since the weight is supported, the window glass W can be lightly moved up and down.

Thus, according to the present embodiment described above, the guide portion 13 is provided on the lower peripheral frame 6 attached to the outer peripheral portion of the window glass W, and the guide portion 13 is moved vertically upward by the timing belt 12. , the upper peripheral frame 32, the right peripheral frame 5a, the left peripheral frame 5b, and the lower peripheral frame 6 attached to the outer peripheral edge of the window glass W together with the window glass W. also rises in the vertically upward direction and descends in the vertically downward direction. As a result, according to the present embodiment, the windowpane W can be moved up and down only by being guided by the timing belt 12 without the conventional arm. You will no longer be restricted in your movements.

Therefore, according to this embodiment, the window glass W can be raised and lowered instantly.

The window opening/closing device 1 shown in this embodiment is merely an example, and various modifications and changes are possible within the scope of the present invention described in the claims. For example, in the present embodiment, as an example in which the window opening/closing device 1 is used, the door 2 of the driver's cab of a railway vehicle is illustrated, but not limited to this, a so-called "drop window" such as a door of a conductor's compartment is used. It can be applied to any door that has

Moreover, in the present embodiment, the timing belt 12 is used as an example. However, there is a risk that something like a wire rope may get tangled or loosened, and the window glass W may not be able to go up and down. It is preferable to use a belt that does not cause

1 window opening and closing device 12 timing belt (guide belt)
12a one side
12b other side
13 guide part 14 weight 21a right guide rail (right guide frame)
22a left guide rail (left guide frame)
W window glass (window)

Claims (1)

weight and
a window that can be raised and lowered;
a support part that supports the window at a predetermined position, is provided on the upper peripheral frame side of the window, and can be gripped manually;
a guide frame that guides the lifting of the window;
an upper pulley located on the upper side of the guide frame;
a lower pulley positioned on the lower side of the guide frame;
a guide belt looped around the upper pulley and the lower pulley;
a guide part provided on the lower side of the window that can be raised and lowered,
The guide portion is composed of an attachment piece and a guide piece attached to the attachment piece,
The mounting piece is attached and fixed to the lower peripheral frame of the window,
The guide piece is supported while gripping one side of the guide belt wound in a loop shape,
Grooves are formed in the left and right guide frames of the guide frame,
The vertical movement of the window is guided by the vertical movement of the left and right peripheral frames of the window along the inside of the groove,
The weight is
a weight body;
a weight guide piece attached and fixed to the weight body;
Left and right slide frames attached and fixed to the left and right side surfaces of the weight,
The weight guide piece is supported while gripping the other side of the guide belt wound in a loop shape,
The left and right slide frames are fitted in the left and right guide frames,
When the support by the support portion is released manually and the window is lowered by gripping the support portion, the guide piece descends, and accordingly, the guide belt rotates and the window moves left and right. When the peripheral frame descends along the groove and the guide belt rotates, the weight guide piece rises and the left and right slide frames rise along the left and right guide frames. The weight body also rises by
When the window is lifted by manually grasping the support portion, the left and right peripheral frames of the window are lifted along the inside of the groove, the guide piece is lifted, and the guide belt is rotated accordingly. By moving, the weight guide piece descends, and the left and right slide frames descend along the left and right guide frames, whereby the weight body also descends,
A window opening and closing device, wherein the weight of the weight can be balanced with the window.

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