JP4930342B2 - Window opening and closing device - Google Patents

Description

  The present invention relates to a window opening and closing device capable of opening a shoji attached to a window frame to the outdoor side.

  As a window opening and closing device used for windows that can open the shoji built in the window frame to the outside, such as protruding windows, side windows, side sliding windows, or vertical sliding windows, etc. One end of the rod is pivotally attached to the lower end of the inner surface of the window plate, and the locking pin provided on the lower edge of the window frame is engaged with the locking hole formed in the opening / closing rod to maintain the open state of the window plate, When the window plate is closed, the opening / closing rod is rotated and held by the locking tool in a state of being attached to the window frame (see, for example, Patent Document 1). The shoji can be opened by pressing the connected flexible operation stick in the outdoor direction, and the shoji can be closed by pulling the operation stick in the indoor direction. That is suspended so that it follows the window frame (for example, patent literature) ), Slide the arm with one end pivotably attached to the lower arm of the shoji around the vertical axis, and slide the stop bracket or slide case attached to the frame side around the vertical axis. Are opened and closed, and the open state of the shoji can be maintained by fitting the concavity and convexity or tightening the screws (for example, see Patent Document 3).

Japanese Utility Model Publication No. 50-37330 (Fig. 1-4) Japanese Utility Model Publication No. 60-115372 (FIGS. 1-2 and 4-5) Japanese Utility Model Publication No. 6-85882 (FIG. 1-7)

In the conventional window opening and closing device as described above, the configuration of Patent Document 1 is such that the engagement between the locking pin of the window frame and the locking hole of the opening and closing rod is released due to wind pressure, and the window plate closes or flutters unexpectedly. Therefore, it is particularly difficult to apply to large windows.
In addition, when the window plate is half-opened, the open / close rod protrudes toward the indoor side, which may impair the aesthetic appearance and may interfere.

In addition, since the configuration of Patent Document 2 needs to give flexibility to the operation rod, it may fluctuate due to wind pressure, and when applied to a large window, the necessary opening / closing stroke, strength, and rigidity are ensured. Is difficult. In particular, for large protruding windows and side sliding windows, the large gravity of the large shoji acts on the operating rod, making it even more difficult to apply.
In addition, when the shoji is closed, the entire operation rod hangs along the window frame while maintaining its length.

  Furthermore, in the configuration of Patent Document 3, when the shoji is opened and closed, the stop fitting or the slide case is rotated, and the arm slides in these. Therefore, when the shoji is applied to a large window, the shoji is opened and closed. It may not be performed smoothly. In particular, it is more difficult to apply to large protruding windows and side sliding windows because the gravity of the large shoji acts on the arm and the like.

  Therefore, in view of the above situation, the present invention intends to solve the problem that the necessary opening / closing stroke, strength and rigidity can be secured and applied to a large window, and the opening / closing operation of the shoji can be smoothly performed. In addition, the present invention is to provide a window opening and closing device that does not interfere with the operation rod even when the shoji is in a half-open state and a closed state, and does not obstruct the aesthetic appearance.

  The window opening and closing apparatus according to the present invention is a window that can open a shoji attached to a window frame to the outside of the room, and is positioned on the indoor side of the window frame, and a vertical shaft or a receiving member attached to the window frame. A base body rotatably supported around a horizontal axis, and a longitudinal base that is slidably supported with respect to the base body and extends and contracts so that the other operation rod can be slid relative to one operation rod. An operation member provided with an operation knob at the end, a connecting member attached to the pivot of the longitudinal end of the operation member and connected to a metal fitting attached to the shoji, and pushing out the operation member in the outdoor direction In the state where the shoji is opened and in the state where the operating member is pulled back in the indoor direction and the shoji is closed, the operating member and the base are engaged, and the sliding movement of the operating member relative to the base is regulated. Slide regulating means for releasing, slide regulation releasing means for releasing the regulation, expansion / contraction regulating means for regulating the expansion / contraction operation while maintaining the state in which the operation member is extended and contracted, and expansion / contraction regulation for releasing the regulation And release means.

  Here, the engagement convex portion protruding elastically supported by the base so that the slide restricting means faces the engagement hole or the engagement concave portion formed in the operation member is the engagement hole or the engagement concave portion. It is preferable that the slide regulation release means is a push piece that moves the engagement convex portion against an elastic biasing force so as to release the engagement.

  Further, the operation member is obtained by fitting the other operation rod to the one operation rod, and the expansion / contraction restriction means faces openings formed at a plurality of positions in the longitudinal direction of the outer operation rod. As described above, the engagement piece that is elastically supported by the inner operation rod and protrudes outward is engaged with the opening, and the expansion / contraction restriction releasing means applies an elastic biasing force so as to release the engagement. It is preferable that the engaging piece is pushed and moved against.

  Further, the base is supported by a receiving member attached to a lower frame so as to be rotatable about a vertical axis, and the operating member is externally fitted to the one operating rod. Preferably, an opening is provided on the lower surface of the outer operation rod, the lower portion of the inner operation rod is protruded into the opening, and the lower surface of the outer operation rod is flush with the lower surface of the inner operation rod. .

According to the window opening and closing apparatus according to the present invention, in the window that can open the shoji attached to the window frame to the outside of the room, the window is positioned on the indoor side of the window frame and is perpendicular to the receiving member attached to the window frame. A base that is pivotally supported around an axis or a horizontal axis, and is supported so as to be slidable with respect to the base, and its length is extended and contracted so that the other operation stick can be slid relative to one operation stick. An operation member provided with an operation knob at a direction base end portion, a connecting member attached to a pivot of a longitudinal tip portion of the operation member and connected to a metal fitting attached to the shoji, and the operation member in an outdoor direction In a state where the shoji is pushed out and the shoji is opened, and in a state where the operating member is pulled back in the indoor direction and the shoji is closed, the operating member and the base are engaged, and the sliding motion of the operating member with respect to the base is performed. The slide restriction means for restricting the movement, the slide restriction release means for releasing the restriction, the expansion / contraction restriction means for restricting the expansion / contraction operation while maintaining the state in which the operation member is extended and contracted, and the restriction is released. Expansion / contraction restriction release means, so that the base and the operation member are rotated from the state in which the base member and the operation member are attached to the window frame, and the slide direction of the operation member is set to the indoor / outdoor direction. Release the restriction of the sliding motion, push the operating member in the outdoor direction to open the shoji, the sliding restricting means restricts the sliding motion of the operating member with respect to the base and opens the shoji, the base and the operating member These are rotated from the state of being attached to the window frame, the sliding direction of the operation member is set to the indoor / outdoor direction, and the expansion / contraction of the operation member is extended by the expansion / contraction restriction release means The operation member is released by releasing the restriction of the operation, the state where the operation member is extended by the expansion / contraction restriction means is held, the restriction of the sliding movement of the operation member is released by the slide restriction release means, and the operation member is pushed outward. Open the shoji, restrict the sliding movement of the operating member with respect to the base by the slide restricting means, and fully open the shoji to the open state. The sliding member can be pulled back to the indoor side and the sliding movement of the operating member relative to the base can be restricted by the slide restricting means so that the closed state is maintained. In this closed state, the base and the operating member are rotated. Can be attached to the window frame.
Therefore, the shoji is opened and closed by the direct movement of the operating member that expands and contracts so that the other operating rod can be slid relative to one operating rod, ensuring the necessary opening / closing stroke, strength, and rigidity. Thus, the present invention can be applied to a large window, and the opening / closing operation of the shoji can be performed smoothly.
In addition, even in the half-open state and the closed state of the shoji, the operation member does not protrude in the indoor direction, the operation member does not get in the way and the aesthetic appearance is not impaired.

  In addition, an engagement convex portion that is elastically supported by the base and protrudes so as to face the engagement hole or the engagement concave portion formed in the operation member so that the slide regulating means faces the engagement hole or the engagement concave portion. In addition to the above effects, the slide restriction releasing means is a push piece that moves the engaging convex portion against an elastic biasing force so as to release the engagement. Since the operation member and the base body can be engaged with each other and the sliding movement of the operation member with respect to the base body can be stably and reliably regulated, the shoji does not close or flutter unexpectedly due to wind pressure, and the pushing piece By pressing the button, the restriction on the sliding movement of the operation member relative to the base can be easily released, and the shoji can be easily opened and closed by the operation member.

Further, the operation member is obtained by externally fitting the other operation rod to the one operation rod, and the expansion / contraction restriction means faces openings formed at a plurality of positions in the longitudinal direction of the outer operation rod. As described above, the engagement piece that is elastically supported by the inner operation rod and protrudes outward is engaged with the opening, and the expansion / contraction restriction releasing means applies an elastic biasing force so as to release the engagement. In addition to the above-described effect, the engaging piece that is pushed and moved against the above-described effect has a strength and a simple structure in which the other operating rod is externally fitted to one operating rod. Since it is easy to increase the rigidity, it can be applied to a larger window and the cost can be reduced.
In addition, by engaging the engagement piece that is elastically supported by the inner operation rod and protrudes outward with the opening of the outer operation rod, the operation member can be held in the extended state and the contracted state easily and reliably. The operation member can be extended and retracted by sliding the other operation rod relative to one operation rod while pushing the engagement piece, thereby releasing the restriction on the expansion and contraction operation of the operation member. Can be easily performed.

Furthermore, the base is supported by a receiving member attached to a lower frame so as to be rotatable around a vertical axis, and the operating member is fitted around the one operating rod with the other operating rod. When an opening is provided on the lower surface of the outer operation rod, the lower portion of the inner operation rod is protruded into the opening, and the lower surface of the outer operation rod and the lower surface of the inner operation rod are flush with each other. In addition to the above effects, the operation member supported slidably with respect to the base supported by the receiving member attached to the lower frame has a simple configuration in which the other operation rod is externally fitted to one operation rod. Therefore, it is easy to increase the strength and rigidity, and even if the large gravity of the large shoji acts on the operation member particularly in a large protruding window or side sliding window, the gravity Is the length of the operation member For acting in the direction (stretching direction), it can be used in particular as a window opening and closing apparatus, such as a large projecting windows and lateral Suberidashi windows.
In addition, since the lower surface of the outer operation rod and the lower surface of the inner operation rod are flush with each other, the height of the lower surface of the operation member does not vary between the extended state and the contracted state. The operation of sliding the operation member in the extended or contracted state relative to the base and moving the operation member in the indoor / outdoor direction can be performed smoothly.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and includes all the embodiments that satisfy the requirements described in the claims. It is a waste. In this specification, the front side in the direction from the indoor side to the outdoor side is the front, the rear side is the rear, and the left and right are the front.

1 to 4 are schematic explanatory views of an opening / closing window according to an embodiment of the present invention. FIG. 1 is a longitudinal side view showing a state in which the shoji is closed, and FIG. 2 is a case in which the shoji is half-opened by the window opening / closing device. FIG. 3 is a longitudinal side view showing a state in which the shoji is fully opened by the window opening / closing device, and FIG. 4 is a transverse plan view. In addition, the shoji is omitted in FIG.
5 to 8 are schematic explanatory views showing the configuration of the window opening and closing device according to the embodiment of the present invention. FIG. 5A is a longitudinal side view showing a half-open state, and FIG. FIG. 6A is a perspective view of the operating member, and FIG. 6B is a cross-sectional view taken along the line XX in FIG. 6A. 7A is a plan view showing a state in which the operating member is contracted, FIG. 7B is a plan view showing a state in which the operating member is extended, and FIG. 8 is a side view of the same.

  As shown in FIGS. 1 to 4, the window frame 3 includes an upper frame 3U and a lower frame 3L, and left and right vertical frames 3S and 3S, and the shoji 4 includes left and right vertical frames 3S and 3S and left and right of the shoji 4. The open / close window 1 which is supported by the window frame 3 via the left and right stays 5 and 5 attached between the vertical frame and the horizontal sliding window is incorporated into the window frame 3 by the window open / close device 2. The shoji 4 can be opened to the outdoor side (see FIGS. 2 and 3).

  As shown in FIGS. 1 to 5, the window opening / closing device 2 is located on the indoor side of the window frame 3, and as shown in FIGS. 5 and 7, the window opening / closing device 2 is pivoted by a receiving member 7 attached to the window frame 3. The second operating rod 12 is slidably supported with respect to the base body 8 supported so as to be rotatable about the vertical axis A, and the second operating rod 12 is extended and retracted relative to the first operating rod 11. An operation member 10 provided with an operation knob 10A at its longitudinal base end, a connecting member 14 attached to the pivot 15 at the distal end in the longitudinal direction of the operation member 10 and connected to the shoji side metal fitting 6 attached to the shoji 4; The operation member 10 shown in FIG. 5A is pushed out in the outdoor direction to open the shoji 4 and the operation member 10 shown in FIG. 5B is pulled back in the indoor direction to close the shoji 4. And an operating member for the base 8 by engaging the base 8 with the base 8 As shown in FIGS. 6 to 8, the slide restricting means 21 for restricting the zero-sliding operation and the slide restriction releasing means 22 for releasing the restriction hold the state of the operation member 10 in the extended state and the contracted state. The expansion / contraction restriction means 23 for restricting the expansion / contraction operation of the operation member 10 and the expansion / contraction restriction release means 24 for releasing the restriction are provided.

As shown in FIGS. 1 to 3, since the operation pin 16 erected at the distal end portion of the connecting member 14 engages with the shoji side metal fitting 6 attached to the lower arm of the shoji 4, the longitudinal direction of the operation member 10 The sliding door 4 can be opened and closed by operating the operation knob 10A and moving the operation member 10 in the front-rear direction in a state where is in the front-rear direction (indoor / outdoor direction).
Further, as shown in FIG. 6, the operating member 10 that expands and contracts is obtained by externally fitting the second operating rod 12 to the first operating rod 11, and this configuration increases the strength and rigidity of the operating member 10. Therefore, the present invention can be applied to a larger window, and the cost can be reduced because of a simple configuration.

As shown in FIGS. 5 and 7, the pin 17 is erected on the receiving member 7 fixed to the lower frame 3 </ b> L by the mounting screws 27, 27, and the pin 17 and the through hole 8 </ b> B of the base body 8 are fitted. The base 8 is supported so as to be rotatable around the vertical axis A.
Further, as shown in FIG. 5, the operation member 10 is inserted into the guide hole 8 </ b> A of the base 8, and the operation member is slidably supported with respect to the base 8 when the longitudinal direction of the operation member 10 is the front-rear direction. 10 can be slid in the front-rear direction through the opening 3 </ b> A of the lower frame 3 </ b> L, and a support plate 13 is attached to the distal end portion of the second operating rod 12 of the operation member 10. Since the connecting member 14 is attached, the operation member 10 and the connecting member 14 are relatively rotatable around a vertical axis B that is a rotation center axis.

In the state where the operation member 10 shown in the solid line in FIG. 4 and FIG. 5B is pulled back to the indoor side and the shoji 4 is closed, the vertical axes A and B are concentric so as to overlap on a straight line in the vertical direction. Therefore, the base body 8 and the operation member 10 can be rotated around the concentric vertical axes A and B.
Therefore, as shown in FIG. 4, when the shoji 4 is closed, the base 8 and the operation member 10 can be rotated to follow the window frame 3 (lower frame 3L), and the cushioning material 29 is provided. The operation member 10 can be held by the operation member holding guide 28.
In this state where the shoji 4 is closed, the base 8 and the operation member 10 are attached to the window frame 3, and the upper and left sides of the receiving member 7 and the base 8 are covered with the cover 9, so that the viewer can be refreshed. The operation member 10 does not get in the way.

  Conversely, as shown by the arrow C in FIG. 4, the base member 8 and the operation member 10 can be rotated to bring the operation member 10 into the front-rear direction. In this state, the receiving member 7 is provided as shown in FIG. Since the left side surface of the base body 8 abuts against the rotation stopper 7A, the base body 8 can be positioned with the operation member 10 in the front-rear direction.

Next, the slide restriction means 21 and the slide restriction release means 22 will be described.
As shown in FIG. 5, the slide restricting means 21 faces the engaging recess 11 </ b> A formed on the lower surface of the first operating rod 11 of the operating member 10 and the engaging hole 13 </ b> A formed on the support plate 13 of the operating member 10. Further, the engaging convex portion 18 that is elastically supported by the base body 8 via the compression coil spring 19 and protrudes upward is engaged with the engaging concave portion 11A or the engaging hole 13A. In a state where the engaging recess 11A or the engaging hole 13A is engaged, the sliding operation of the operation member 10 with respect to the base body 8 is restricted.
The slide restriction release means 22 is a pushing piece 20 that protrudes upward from the base body 8. When the pushing piece 20 is pushed down, the engaging projection 18 descends against the elastic biasing force of the compression coil spring 19. Then, the engagement between the engagement convex portion 18 and the engagement concave portion 11A or the engagement hole 13A is released.

The slide restricting means 21 having such a simple configuration allows the operation member 10 and the base 8 to be engaged with each other, and the sliding movement of the operation member 10 with respect to the base 8 can be stably and reliably restricted. Does not close or flutter unexpectedly.
Further, the restriction of the sliding movement of the operation member 10 with respect to the base body 8 can be easily released by the slide restriction releasing means 22 having a simple configuration including the pushing piece 20.

Next, the expansion / contraction restriction means 23 and the expansion / contraction restriction release means 24 will be described.
In the state where the longitudinal direction of the operation member 10 shown in FIGS. 7 and 8 is the front-rear direction, the expansion / contraction restriction means 23 is arranged on the left and right side surfaces of the second operation rod 12 on the rear and front sides in the longitudinal direction as shown in FIG. The engaging piece 25 that is elastically supported by the first operating rod 11 via the compression coil spring 26 and protrudes to the left and right is engaged with the openings 12A and 12B so as to face the openings 12A and 12B formed in the portion. It is something to be made.
In such a state that the left and right engaging pieces 25, 25 and the left and right openings 12A, 12A or 12B, 12B are engaged by the expansion / contraction restriction means 23, the first operating rod 11 and the second operating rod 12 are relatively The movement of the operation member 10 by sliding the operation member 10 is restricted.

The expansion / contraction restriction releasing means 24 is the left and right engaging pieces 25, 25. Since the inclined surfaces 25A, 25A are formed on the front and rear sides of the engaging piece 25, for example, as shown in FIG. When the member 10 is contracted (the left and right engagement pieces 25, 25 are engaged with the front openings 12B, 12B of the second operation member 12), the left and right engagement pieces 25, When the operation knob 10A is pulled rearward while pressing 25, the operation member 10 can be extended, and the operation member 10 is extended as shown in FIG. 7B (the opening 12A on the rear side of the second operation member 12). , 12A and the right and left engagement pieces 25, 25 are engaged), the expansion / contraction restriction means 23 restricts the operation of the operation member 10 to expand and contract.
Similarly, when the operation member 10 is extended as shown in FIG. 7B and the operation knob 10A is pushed forward while pressing the left and right engagement pieces 25, 25, the operation member 10 can be contracted. In the state where the operation member 10 is contracted as shown in FIG. 7A, the expansion / contraction restriction means 23 restricts the operation of the operation member 10 to expand and contract.

By means of the expansion and contraction restricting means 23 having such a simple configuration, the engagement pieces 25 and 25 that are elastically supported by the first operating rod 11 and protrude outward in the left and right directions are provided on the left and right openings 12A and 12A of the second operating rod 12 or By engaging with 12B, 12B, the operation member 10 can be easily and reliably held in the extended state and the contracted state.
In addition, the first operation rod 11 is slid relative to the second operation rod 12 while pushing the engagement pieces 25, 25 by the expansion / contraction restriction releasing means 24 having a simple configuration including the engagement pieces 25, 25. Thus, the restriction of the expansion / contraction operation of the operation member 10 can be released, and the expansion / contraction operation of the operation member 10 can be easily performed.

  According to the configuration of the window opening and closing device 2 as described above, the base 8 and the operating member 10 are attached to the window frame 3 (lower frame 3L) as shown in FIG. The base 8 and the operation member 10 are rotated around the vertical axes A and B, the sliding direction of the operation member 10 is set to the indoor / outdoor direction, and the restriction of the sliding operation of the operation member 10 is released by the slide restriction release means 22. As shown by the arrow D in FIG. 4, the operating member 10 is pushed outward to open the shoji 4, and the slide restricting means 21 restricts the sliding movement of the operating member 10 relative to the base body 8 into a half-open state (see FIG. 2). Can be easily.

  Further, from the state in which the base 8 and the operation member 10 are attached to the window frame 3 (lower frame 3L), the base 8 and the operation member 10 are rotated around the vertical axes A and B as indicated by an arrow C in FIG. The expansion / contraction restriction release means 24 releases the restriction of the expansion / contraction operation of the operation member 10 so that the sliding direction of the operation member 10 is the indoor / outdoor direction and the state of FIG. 7 (a) is changed to the state of FIG. 7 (b). The operation member 10 is extended, the state in which the operation member 10 is extended by the expansion / contraction restriction means 23 is held, the restriction of the sliding movement of the operation member 10 is released by the slide restriction release means 22, and the operation is performed as indicated by an arrow E in FIG. It is possible to facilitate the fully open state (see FIG. 3) in which the member 10 is pushed out in the outdoor direction to open the shoji 4 and the slide restricting means 21 restricts the sliding motion of the operation member 10 with respect to the base body 8.

  Further, the operation member 10 is pulled back to the indoor side by the reverse operation to the above, and the sliding operation of the operation member 10 with respect to the base body 8 is regulated by the slide regulating means 21 so that the closed state where the shoji 4 is closed is maintained. In this closed state, the base body 8 and the operation member 10 can be rotated around the concentric vertical axes A and B to follow the window frame 3 (lower frame 3L).

Accordingly, since the shoji 4 is opened and closed by the linear movement of the operating member 10 that expands and contracts so that the other operating rod can be slid relative to one operating rod, the necessary opening / closing stroke, strength and rigidity are required. Can be applied to large windows, and the shoji 4 can be opened and closed smoothly.
In addition, even when the shoji 4 is in the half-open state and the closed state, the operation member 10 does not protrude in the indoor direction, and the operation member 10 does not get in the way and the aesthetic appearance is not impaired.

  Further, as shown in FIG. 6B, an opening is provided in the lower surface of the second operating rod 12 that is fitted around the first operating rod 11, and the lower portion of the first operating rod 11 protrudes into the opening. Since the lower surface 12C of the second operating rod 12 and the lower surface 11B of the first operating rod 11 are flush with each other, the height of the lower surface of the operating member 10 is extended between the extended state and the contracted state. Therefore, the operation member 10 can be smoothly slid with respect to the base 8 and moved in the indoor / outdoor direction as the operating member 10 is extended or contracted.

  In the above description, the case where the opening / closing window 1 capable of opening the shoji 4 attached to the window frame 3 to the outdoor side is a side sliding window, the opening / closing window 1 is a vertical sliding window, a protruding window, or A single window or the like may be used. Moreover, although the case where the base body 8 of the window opening / closing device 2 is rotatably supported around the vertical axis A by the receiving member 7 attached to the lower frame 3L has been described, depending on the configuration of the opening / closing window 1, the base body 8 may be The receiving member 7 attached to the upper frame 3U or the vertical frame 3S may be rotatably supported. In the configuration in which the receiving member 7 is attached to the vertical frame 3S, the base member 8 is moved around the horizontal axis by the receiving member 7. What is necessary is just to support so that rotation is possible.

It is a vertical side view of the opening-and-closing window which concerns on embodiment of this invention, and has shown the state which closed the shoji. Similarly, it is a longitudinal side view, and shows a state in which the shoji is half-opened by the window opening and closing device. Similarly, it is a vertical side view, showing a state in which the shoji is fully opened by the window opening and closing device. It is a cross-sectional view similarly. It is a vertical side view which shows the structure of the window opening / closing apparatus which concerns on embodiment of this invention, (a) has shown the half-open state, (b) has shown the state which pulled the operation member from the half-open state and closed the shoji. . (A) is a perspective view of an operation member, (b) is an XX sectional view of (a). (A) is a top view which shows the state which shortened the operation member, (b) is a top view which shows the state which extended the operation member. It is a side view which shows the state which extended the operation member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening / closing window 2 Window opening / closing device 3 Window frame 3A Opening 3U Upper frame 3L Lower frame 3S Vertical frame 4 Shoji 5 Stay 6 Shoji side metal fitting 7 Receiving member 7A Rotation stop 8 Base (guide member)
8A Guide hole 8B Through hole 9 Case 10 Operation member 10A Operation knob 11 First operation rod 11A Engaging recess 11B Lower surface 12 Second operation rod 12A, 12B Opening 12C Lower surface 13 Support plate 13A Engagement hole 14 Connecting member 15 Pivot 16 Operation Pin 17 Pin (Rotating spindle)
18 Engaging convex part 19 Compression coil spring 20 Pushing piece 21 Slide restricting means 22 Slide restriction releasing means 23 Expansion / contraction restricting means 24 Expansion / contraction restriction releasing means 25 Engaging piece 25A Inclined surface 26 Compression coil spring 27 Mounting screw 28 Operating member holding guide 29 Buffer material A, B Vertical axis (rotation center axis)

Claims (4)

In the window that can open the shoji attached to the window frame to the outdoor side,
A base body located on the indoor side of the window frame, and supported by a receiving member attached to the window frame so as to be rotatable about a vertical axis or a horizontal axis;
An operation member that is supported so as to be slidable with respect to the base body, and that expands and contracts so that the other operation rod is slidable relative to one operation rod;
A connecting member attached to the pivot of the longitudinal end of the operating member and connected to a metal fitting attached to the shoji,
In a state where the operation member is pushed out in the outdoor direction to open the shoji, and in a state in which the operation member is pulled back in the indoor direction and the shoji is closed, the operation member and the base are engaged with each other. A slide restricting means for restricting the sliding movement of the operation member, and a slide restriction releasing means for releasing the restriction;
An expansion / contraction restriction means for restricting the expansion / contraction operation and an expansion / contraction restriction releasing means for releasing the restriction, while maintaining the state of the operation member in the extended state and the contracted state,
A window opening and closing device comprising:   Engaging the engagement protrusion or the engagement recess with the engagement protrusion protruding elastically supported by the base so that the slide regulating means faces the engagement hole or engagement recess formed in the operation member. The window opening and closing device according to claim 1, wherein the slide restriction release means is a push piece that moves the engagement convex portion against an elastic biasing force so as to release the engagement.   The operating member is configured such that the other operating rod is externally fitted to the one operating rod, and the expansion / contraction restricting means is opposed to openings formed at a plurality of positions in the longitudinal direction of the outer operating rod. An engagement piece which is elastically supported by an inner operation rod and protrudes outward is engaged with the opening, and the expansion / contraction restriction release means resists an elastic biasing force so as to release the engagement. The window opening and closing device according to claim 1, wherein the engagement piece is pushed and moved. The base is supported by a receiving member attached to a lower frame so as to be rotatable about a vertical axis, and the operation member is obtained by externally fitting the other operation rod to the one operation rod. 2. An opening is provided on the lower surface of the outer operating rod, the lower portion of the inner operating rod is protruded into the opening, and the lower surface of the outer operating rod and the lower surface of the inner operating rod are flush with each other. The window opening and closing apparatus described.

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