JPH08326394A - Pivoted window - Google Patents

Abstract

PURPOSE: To identify the load direction of operation to pivot a pivoted frame body with the load direction of operation to rotate an operating handle so that the opening operation and remote control operation by the rotary frame body can be facilitated and further the closed lock condition, opened condition and ventilating condition can be easily changed over therebetween. CONSTITUTION: An opening 12 of a fixed frame body 13 fixed to a wall surface is closed with a rotary frame body 15. Lock pins 24 are displaced from one end 17f to the other end 17b of an engaging groove 17a against the urge of a lock spring by rotating an operating handle 23 with a load in the opening rotary direction of the rotary frame body 15. When the rotary frame body is rotated further by the operating handle 23 from this condition in the opening direction, the lock pins 24 pass by a guide groove 17c to open the opening 12. When a second engaging groove 17d provided on the half way part of the guide groove 17c is engaged with the lock pins 24, the opening 12 can be set to a somewhat opened ventilating condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary window for holding an operating handle and performing an opening operation.

[0002]

2. Description of the Related Art Conventionally, it is known that a rotary window is installed as a relatively small ventilation window on a wall of a general house or a wall surface such as a ceiling.

As such a rotary window, as shown in FIG. 8, a fixed frame body 3 is fixed to a wall surface 1 such as a wall or a ceiling to form an opening 2 having a predetermined shape, and is supported by the fixed frame body 3. A rotary frame body 5 rotatably mounted via a shaft 4 to open and close the opening 2, a glass panel 6 mounted to the rotary frame body 5, and a rotary frame body 5 for rotating the rotary frame body 5 to open and close the opening 2 It is known to have an operation handle 7 for operation.

As shown in FIG. 7, the opening wall surface 3a of the fixed frame 3 is provided with a lock member 8 having engaging grooves 8a and 8b which open to the opening wall surface 3a. The engagement groove 8a is used when locking the closed state of the rotary frame 5, and the engagement groove 8b is used.
Is a ventilation state in which the opening 2 is slightly opened by the rotating frame body 5 (the opening itself of the opening 2 is ventilation, but in this case, this slight opening is called a ventilation state, and a larger opening than this is called an open state). Used when doing.

The operating handle 7 is mounted on the rotary frame 5 via the support shaft 9 so as to be rotatable in a plane parallel to the glass panel 6, and the handle portion 7a and the engaging grooves 8a, 8b are provided.
Locking tongue 7b that engages with any of the above.

In such a construction, when the rotary frame 5 is rotated and opened from the state where the opening 2 is closed, the handle portion 7a is grasped and the operation handle 7 is supported with the support shaft 9 as a fulcrum. Is rotated (in the direction of arrow a in FIG. 8), this engagement releases the engagement between the engagement groove 8a and the lock tongue 7b, and the closed lock state is released.

Then, from this state, the grip portion 7a is held in the open rotation direction, for example, the operation handle 7a.
The opening 2 can be opened by rotating the rotary frame body 5 on the side so as to be pulled out to the indoor side (direction of arrow B in FIG. 7).

On the other hand, when the closed lock state is restored from the open state, the closed lock state may be obtained by performing the procedure in the reverse order of the opening operation described above.

On the other hand, when the opening 2 is slightly opened for ventilation, the handle portion 7a is gripped from the above-described closed lock state or open state to rotate the rotary frame body 5, and the second
The ventilation state is maintained by engaging the engagement groove 8b and the lock tongue piece 7b.

[0010]

In the rotary window constructed as described above, when the closed lock state is changed to the open state as described above, the lock tongue piece 7b is temporarily provided. After releasing the engagement between the engaging groove 8a and the engaging groove 8a, the rotary frame 7 is rotated. Therefore, the rotation direction of the operation handle 7 for releasing the engagement between the lock tongue piece 7b and the engagement groove 8a is different from the opening rotation direction of the rotary frame body 5, so that the operation is troublesome.

When such a rotary window is adopted as a skylight, the operation handle 7 is located away from the overhead so that a stepladder or the like must be used. It is troublesome to carry a stepladder and climb up and down.

Therefore, for example, it is conceivable to perform a remote operation using a string or a rod, but such a remote operation is particularly for releasing the engagement between the locking tongue piece 7b and the engagement groove 8a. It is difficult to rotate the operating handle 7, and it is not suitable to use such operating handle 7 for the skylight.

Further, when the second engaging groove 8b and the locking tongue piece 7b are engaged with each other in order to bring the opening 2 into the ventilation state, the engaging groove 8a and the second engaging groove 8b are provided close to each other. Therefore, it is difficult to engage the lock tongue piece 7b with the second engagement groove 8b, and when it is used as a skylight, the line of sight is far and angularly difficult to see (for example, see the arrow IP in FIG. 6). Together with this, it was more difficult to confirm the engagement.

The present invention has been made in view of the above circumstances, and the load direction of the operation of rotating the rotary frame can be made the same as the load direction of the operation of rotating the operation handle, and therefore the rotation can be performed. An object of the present invention is to provide a rotary window capable of facilitating opening operation and remote operation by a frame body and also facilitating switching between a closed lock state, an open state, and a ventilation state. And

[0015]

In order to achieve the object, the invention described in claim 1 is a fixed frame body fixed to a wall surface to form an opening of a predetermined shape, and rotatably mounted on the fixed frame body. A rotary frame body that is mounted to open and close the opening, an engagement groove that is provided on the wall surface of the opening of the fixed frame body and extends along the rotation axis direction of the rotary frame body, and the rotation frame from one end of the engagement groove. A guide groove extending in the opening rotation direction of the frame body and opening in the opening rotation direction of the fixed frame body; a second engagement groove extending in the same direction as the engagement groove and in parallel from the middle portion of the guide groove; A lock pin provided on the rotary frame so as to be engaged with each engagement groove and displaceable along the rotation axis direction of the rotary frame, and the lock pin in the other end direction of the engagement groove. It is rotated by the biasing lock spring and the load in the opening rotation direction of the rotating frame. It is summarized as that a said lock spring the rotary frame body rotatably provided with the operating handle to displace the said locking pin against the bias from the other end to one end of the by.

The invention according to claim 2 is the second invention.
The gist is that the engagement groove is located closer to the guide groove than the engagement groove.

Further, the invention according to claim 3 is summarized in that a projection projecting toward the guide groove is formed on a wall surface of the guide groove facing the second engaging groove.

[0018]

In the above-mentioned structure according to claim 1,
The opening of the fixed frame fixed to the wall is closed on the rotating frame, and the lock pin is engaged against the bias of the lock spring by rotating the operating handle by the load in the opening direction of the rotating frame. Displace from the other end of the groove to one end, and further rotate the rotating frame in the opening direction with the operation handle from this state, the lock pin passes through the guide groove and the opening is opened, and the lock pin is provided in the middle of the guide groove. By engaging the lock pin with the second engaging groove, the rotary frame is fixed with the opening slightly opened.

According to the second aspect of the invention,
Since the second engaging groove is located closer to the guide groove than the engaging groove, the second time when the lock pin engages with the engaging groove
Since the position of the operation handle is different when the engagement handle is engaged with the engagement groove, the engagement position can be confirmed at the position of the operation handle.

Further, according to the third aspect of the present invention, since the projection that protrudes toward the guide groove is formed on the wall surface of the guide groove that faces the second engagement groove, the second engagement from the engagement groove is formed. The engagement with the second engagement groove can be easily performed at the time of switching the engagement with the mating groove.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the rotary window of the present invention is applied to a skylight, and an embodiment thereof will be described with reference to FIGS.

(First Embodiment) FIGS. 1 to 4 show a first embodiment of the present invention. In FIG. 4, the skylight 10 is fixed to a wall surface 11 such as a wall or a ceiling to form an opening 12 having a predetermined shape, and a fixed frame body 13 rotatably mounted via a support shaft 14. Rotating frame body 15 for opening and closing the opening 12
And a glass panel 16 mounted on the rotating frame body 15.

The opening wall surface 13a of the fixed frame 13 is shown in FIG.
As shown in, a lock member 17 made of a metal plate is fixed via screws 18 and 18.

The lock member 17 has a structure shown in FIG.
As shown in (B), an engagement groove 17a extending along the rotation axis direction of the rotary frame body 15 (axial direction of the support shaft 14),
A guide groove 17c extending from one end 17b of the engagement groove 17a in the opening rotation direction of the rotary frame body 15 (in this case, the arrow C direction toward the indoor side) and opening in the opening rotation direction of the rotary frame body 15,
A second engaging groove 17d extending in the same direction as and parallel to the engaging groove 17a is formed from a midway portion of the guide groove 17c. The open end of the guide groove 17c is expanded in the open rotation direction by the tapered surface 17e. Furthermore, each groove 17a, 17
A concave portion 13b is formed in the opening wall surface 13a of the fixed frame body 13 where c and 17d are located.

The tapered surface 17e is for allowing the rotary frame body 13 to be closed without operating the operation handle 23 when the rotary frame body 13 is changed from the open state to the closed lock state. Therefore, the open end of the tapered surface 17e is set such that the offset direction and distance with respect to the guide groove 17c are the same as the offset direction and distance with respect to the guide groove 17c of the engagement groove 17a. FIG.
In (B), reference numeral 17f is the other end of the engaging groove 17a, 1
7g is a hole into which the screw 18 is inserted.

On the other hand, a concave portion 15b is formed on a wall surface 15a of the rotary frame body 15 which faces the lock member 17 when the rotary frame body 15 is closed. Further, a through hole 15d communicating with the recess 15b is formed in the wall surface 15c on the indoor side of the rotary frame body 15. Further, the wall surface 15a is provided with a second recessed portion 15e which is shallower and wider than the recessed portion 15b. A lock operating portion 19 is provided in the recess 15b.

As shown in FIGS. 2 and 3, the lock operating portion 19 includes a fixed plate 20 fixed to the rotary frame 15.
A slide plate 21 slidably held by the fixed plate 20, an operation handle 23 rotatably held by the fixed plate 20 via a shaft 22, a lock pin 24 fixed to the slide plate 21, and a lock. A lock spring 25 for constantly positioning the pin 24 at the other end 17f (= lock position), a contact spring 26 for contacting the operation handle 23 with the lock pin 24, and a recess 15b.
And a cover 27 for closing.

The fixing plate 20 has a substantially T-shape and is fixed via screws 28, 28 ... Further, the tongue piece 20a of the fixed plate 20 is formed with a raised portion 20b protruding toward the open side of the recess 15b,
The shaft 22 is provided on this raised portion 20b.

The slide plate 21 has elongated holes 21a, 21a ... Formed at three positions thereof.
a, 21a ... Fixing means 29, 29 such as screws inserted in
Are held slidably in the fixed plate 20 within the range of the long holes 21a, 21a.

The operation handle 23 has a rotary plate 30 having ribs 30a, 30a extending in the longitudinal direction thereof, and a handle portion 32 fixed to the indoor end of the rotary plate 30 with screws 31, 31. I have it. Further, the shaft 22 is positioned substantially in the center of the rotary plate 30, and the lock pin 24 is one rib 3 at the outdoor end of the rotary plate 30.
It is located at 0a.

The projecting height of the lock pin 24 is set so that a part thereof penetrates the elongated hole 27a formed in the cover 27 and further faces the recess 13b through the respective grooves 17a and 17c of the lock member 17. There is.

The lock spring 25 has one end 25a.
Is engaged with an engaging portion 20c formed on the fixed plate 20, and the other end 25b is engaged with an engaging portion 21b formed on the slide plate 21, thereby rotating the slide plate 21 integrally with the lock pin 24. The lock pin 24 is always positioned at the lock position of the engagement groove 17a by being biased to the plate 30 side.

One end 26a of the contact spring 26 is engaged with the engaging portion 20d formed on the slide plate 21, and the other end 26b is engaged with the engaging portion 30b formed on the rotating plate 30, Thereby, the contact state between the lock pin 24 and the rotating plate 30 is secured. still,
The urging force of the contact spring 26 is set to be smaller than the urging force of the lock spring 25.

The cover 27 is formed of a thin metal plate, and is fixed to the rotary frame body 15 with screws 33 so as to be flush with the wall surface 15a or lower than the wall surface 15a. Therefore, the depth of the second concave portion 15e in which the cover 27 is located is formed to be equal to or thicker than the wall thickness of the cover 27.

In the above-mentioned structure, the handle portion 23 of the operation handle 23 is gripped (or a stick or the like) from the state in which the opening 12 shown in FIG. 4 (the state of the solid line in FIG. 2 and the state of FIG. 3 are the same) is closed and locked. 1)
When it is pulled toward the front as shown by the chain line in (A), the load causes the entire operation handle 23 to rotate about the shaft 22 as the center of rotation, and resists the bias of the lock spring 25 to cause the lock pin 2 to rotate.
4 is guided through the engaging groove 17a and is in the lock position (FIG. 1 (B)).
From position P1) to one end 17b (position P2 in FIG. 1B)
It is displaced to and the locked state is released.

Then, when it is further pulled toward this side, the rotating frame body 15 rotates around the support shaft 14 as a fulcrum to open the opening 12
The lock pin 24 is returned to the initial position by the urging force of the lock spring 25 when the hand is released from the operation handle 23 at an arbitrary open position.

The rotation frame 15 is opened when the fixed frame 13 is opened.
It is maintained at an arbitrary open position by the pressure contact force (friction force) of the contact portion between the rotary frame body 15 and the rotary frame body 15 or the pressure contact force of the support shaft 14 extending between the fixed frame body 13 and the rotary frame body 15. A gear may be provided so as to surround 14 and a pin or the like that meshes with the tooth portion of the gear may be provided on the rotary frame to secure the holding force at the open position.

On the other hand, when changing from the open state to the ventilation state,
First, by pushing back the pulled-out portion of the rotary frame body 15, the lock pin 24 positioned at the lock position by the urging force of the lock spring 25 moves to the guide groove 17c in the same direction and distance as the engaging groove 17a. It abuts the open end of the offset tapered surface 17e (position P in FIG. 1B).
3) Then, by further pushing back the rotary frame body 15 as it is, the lock pin 24 is guided in the guide groove 17c against the bias of the lock spring 25, and the second engagement is performed by the bias of the lock spring 25 at a predetermined position. The lock pin 24 is engaged with the groove 17d (position P4 in FIG. 1 (A)) to establish a ventilation state.

When the ventilation state is changed to the closed lock state, the operation handle 23 is operated to release the engagement between the second engagement groove 17d and the lock pin 24, and the rotary frame is closed as it is. The opening 12 is closed by the rotating frame body 15 by rotating in the normal rotation direction to engage the lock pin 24 with the engagement groove 17a.

As described above, in the rotary window 10 of the present invention, when the operation handle 23 is held and opened, the operation handle 2 is moved in the opening rotation direction, for example, the pull-out direction.
The closed lock state is released by rotating 3
Since it can be opened as it is, it is easy to operate,
Moreover, remote control is possible.

Further, when the open state is changed to the ventilation state, it is sufficient to simply push back the operation handle 23 without performing the operation of gripping the operation handle 23.

In the above embodiment, the support shaft 14 is installed so as to be located at the center in the height direction of FIG. 4 and to have an axis line extending in the left-right direction. Although the body 15 is disclosed, the support shaft 14 may be installed so as to be positioned above or below in FIG. 4 so as to have an axis line that extends in the left-right direction, or may extend vertically in any position in the width direction of FIG. You may make it install so that it may have an axis line, and, by this, the right and left in the figure may jump out indoors (when a support shaft exists in an edge part, it may not necessarily jump out completely).

The shape of each frame 13, 15 is a perfect circle,
The shape is not particularly limited, such as an ellipse and a rhombus. further,
In the above-mentioned embodiment, the operation handle 23 is rotated so as to be pulled toward the inside of the room, but it may be rotated so as to be pushed out of the room, and its position is also the rotation of the rotary frame body 15 with the support shaft 14 as the axis. The position is not particularly limited as long as the position allows the operation.

By the way, the engaging groove 17 shown in FIG.
The partition wall portion 17h, which is the boundary between the a and the second engagement groove 17d, is
Although the protrusion amounts are substantially the same as the depths of the engagement grooves 17a and 17d, as shown in FIG.
The amount of protrusion of the lock pin 24 may be shortened so that the lock pin 24 is displaced between the engagement groove 17a and the second engagement groove 17j without the displacement operation of the operation handle 23. still,
In FIG. 1C, the same components as those in FIG. 1B are designated by the same reference numerals and the description thereof will be omitted.

(Second Embodiment) FIGS. 5A and 5B show a second embodiment of the present invention, which is shown in FIG.
It is a figure corresponded to (B). The apparent configuration in the drawings disclosed in FIGS. 2 to 4 of the first embodiment is the same in this second embodiment as well, so its illustration is omitted. Further, in FIGS. 5A and 5B, the same components as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

The lock member 37 of the second embodiment has an engagement groove 37a extending along the direction of the rotation axis of the rotary frame 15.
A guide groove 37c extending from the one end 37b of the engaging groove 37a in the opening rotation direction of the rotary frame body 15 and opening in the opening rotation direction of the rotary frame body 15, and the engaging groove 37 from the middle portion of the guide groove 37c.
a second engaging groove 37d extending in the same direction as and in parallel with a, a taper surface 37e for expanding the open end of the guide groove 37c in the opening rotation direction, and a guide groove 37c facing the second engaging groove 37d.
37h projecting from the wall surface of the wall toward the guide groove 37c
It has and. In FIG. 5B, reference numeral 37
f is the other end of the engaging groove 37a, and 37g is a hole into which the screw 18 is inserted.

The second engagement groove 37d is located closer to the guide groove 37c than the engagement groove 37a. Further, the protrusion amount of the partition wall portion 37i, which is the boundary between the engagement groove 37a and the second engagement groove 37d, is set to be short as in FIG. 1C.

Therefore, from the engagement groove 37a to the second engagement groove 37.
Displacement of the lock pin 24 to d becomes difficult without operation of the operation handle 23 due to the difference in depth from the guide groove 17c, as in the structure shown in FIG. 1 (B).
There is no possibility that the rotating frame 15 is opened by accidentally riding on the partition 37i due to wind pressure from the outside.

On the other hand, the protrusion amount of the partition wall portion 37i is as shown in FIG.
Since it is set short like the structure shown in (C),
Lock pin 24 from the second engagement groove 37d to the engagement groove 37a
Can be displaced without operating the operating handle 23,
Improvement of operability when changing from the open state to the closed lock state is ensured.

Since the second engagement groove 37d is located closer to the guide groove 37c than the engagement groove 37a, when the lock pin 24 is engaged with the second engagement groove 37d in the ventilation state, Coupled with the fact that the contact state between the lock pin 24 and the rotating plate 30 is maintained by the biasing force of the contact spring 26, the lock pin 24 is engaged with the engagement groove 37a more than when the lock pin 24 is engaged. The free end of the handle 32 is the glass panel 16
Even when installed in a distant position such as a skylight, it is possible to discriminate between the closed lock state and the ventilated state depending on the position of the handle portion 32. It will be possible.

In the above structure, when the handle portion 23 of the operation handle 23 is pulled forward from the closed lock state, the load causes the entire operation handle 23 to rotate around the shaft 22 as a center of rotation, and the lock spring 25 is biased. The lock pin 24 is guided in the engagement groove 37a against the lock position (see FIG. 5).
The lock state is released by displacing from the position P1 of (B) to the one end 37b (position P2 of FIG. 5B).

When the operation handle 17 is further pulled toward this side from this state, the rotary frame 15 rotates around the support shaft 14 as a fulcrum, and the lock pin 24 guides the guide groove 37c and abuts on the projection 37h (see FIG. Position P3) in B).

At this time, when it is desired to open the opening 12 a little, the operating handle 17 is placed at this abutting position.
When released, the lock pin 24 is engaged with the second engagement groove 37d by the urging force of the lock spring 25 (position P in FIG. 5B).
4) Then, it can be opened slightly.

Further, when it is desired to open the opening 12 largely, the lock frame 24 can ride over the projection 37h and further open the opening 12 by further pulling out the rotary frame 15 from the contact position.

On the other hand, when changing from the open state to the ventilation state,
By pushing the pulled-out portion of the rotary frame body 15, the lock pin 24 positioned at the lock position by the bias of the lock spring 25 comes into contact with the open end of the tapered surface 37e (position P5 in FIG. 5B). ), And by further pushing the rotary frame 15, the lock pin 24 is guided in the guide groove 37c while being displaced against the bias of the lock spring 25,
The lock pin 24 is engaged with the second engagement groove 37d by the bias of the lock spring 25 at a predetermined position (position P in FIG. 5B).
6) Then, the ventilation can be established.

On the other hand, when the ventilation state is changed to the closed lock state, by pushing the pulled-out portion of the rotary frame body 15, the lock pin 24 overcomes the urging force of the lock spring 25 and overcomes the partition wall portion 37i. The engagement can be returned to the engagement groove 17a and the closed lock state can be obtained.

As described above, in the rotary window 10 of the present invention, by rotating the operation handle 23 in the opening rotation direction, for example, the pull-out direction, when the operation handle 23 is held and opened. Since the closed lock state is released and can be opened as it is, the operation is easy and the remote operation is possible.

Further, when the open state is changed to the ventilated state, it is sufficient to simply push back the operation handle 23 without performing the operation by grasping it.

Moreover, like the partition walls 17i and 37i,
By reducing the protrusion amount, even when the ventilation state is changed to the closed lock state, it is sufficient to simply push back without performing the operation of gripping the operation handle 23.

[0060]

As described above, in the rotary window of the present invention, the fixed frame body fixed to the wall surface to form the opening of the predetermined shape, and rotatably attached to the fixed frame body. A rotary frame body that opens and closes the opening, an engagement groove that is provided on the wall surface of the opening of the fixed frame body and extends along the rotation axis direction of the rotary frame body, and one end of the engagement groove of the rotary frame body. A guide groove extending in the opening rotation direction and opening in the opening rotation direction of the fixed frame body, a second engagement groove extending in the same direction as the engagement groove and in parallel from the middle portion of the guide groove, and each of the engagements. A lock pin provided on the rotary frame so as to be engaged with the groove and displaceable along the rotation axis of the rotary frame, and the lock pin is biased toward the other end of the engagement groove. The lock spring is rotated by the load in the opening rotation direction of the rotary frame body to rotate the roll frame. The rotating frame is rotated by providing an operation handle rotatably provided on the rotating frame so as to displace the lock pin from one end to the other end against the bias of the spring. Since the load direction of the operation and the load direction of the operation of rotating the operation handle can be made the same, it is possible to realize the opening operation by the rotating frame and the remote operation, and the closed lock state and the open state. It is also possible to realize easy switching between the state and the ventilation state.

[Brief description of drawings]

1A and 1B show an embodiment of a rotary window of the present invention, FIG. 1A is a perspective view showing an appearance of a rotary window in an open state, and FIG. 1B is an explanatory view showing a relationship between a lock member and a lock pin; (C) is an explanatory view showing a relationship between a lock member and a lock pin of a modified example of the first embodiment.

FIG. 2 is a plan view of the lock operation part with the cover removed.

FIG. 3 is likewise a sectional view of an essential part.

FIG. 4 is likewise a front view of a rotary window.

FIG. 5 shows a second embodiment of the rotary window of the present invention,
(A) is a perspective view showing the external appearance of the rotary window opened,
(B) is an explanatory view showing the relationship between the lock member and the lock pin.

FIG. 6 is a sectional view of a main part showing a conventional rotary window.

FIG. 7 is likewise a front view of a rotary window.

[Explanation of symbols]

 10 ... Rotating window 12 ... Opening 13 ... Fixed frame body 13a ... Opening wall surface 15 ... Rotating frame body 17 ... Lock member 17a ... Engaging groove 17b ... One end 17c ... Guide groove 17d ... Second engaging groove 17f ... Other end 19 … Operation handle 24… Lock pin 25… Lock spring

Claims (3)

[Claims] 1. A fixed frame body fixed to a wall surface to form an opening having a predetermined shape, a rotary frame body rotatably mounted on the fixed frame body to open and close the opening, and an opening wall surface of the fixed frame body. And a guide extending in the opening rotation direction of the rotary frame body and opening in the opening rotation direction of the fixed frame body from one end of the engagement groove, which is provided in the rotation frame body and extends along the rotation axis direction of the rotation frame body. A groove, a second engaging groove extending in the same direction as and parallel to the engaging groove from a midway portion of the guide groove, and engaging with each engaging groove and along the rotation axis direction of the rotary frame body. A lock pin provided on the rotary frame so as to be displaceable, a lock spring for biasing the lock pin toward the other end of the engaging groove, and a load in the opening rotation direction of the rotary frame to rotate the load. This prevents the lock pin from being pressed at the other end against the bias of the lock spring. Rotating window, characterized in that it comprises a rotatably provided with the operating handle to said rotary frame so as to displace to the end. 2. The rotary window according to claim 1, wherein the second engagement groove is located closer to the guide groove than the engagement groove. 3. The rotation according to claim 1, wherein a protrusion projecting toward the guide groove is formed on a wall surface of the guide groove facing the second engaging groove. Ceremony window.