JP4848306B2 - Opening restriction stopper device in casement window - Google Patents

Description

  The present invention relates to an opening limiting stopper device in an opening window that can selectively open and close the shoji selectively while partially opening it so that the shoji can be securely fixed to the position when the shoji is rotated to a certain angle.

  Patent Document 1 is provided with an operating tool 8 for moving the check arm 6 in the longitudinal direction so that the pivoting position can be changed with respect to the support shaft 5 provided in the opening frame 1 at the position where the window 2 is closed. A connecting groove 17 is provided in the longitudinal direction on the distal end side of the check arm 6. A pin 7 fixed to the window 2 is movably fitted in the connecting groove 17. One end of the connecting groove 17 is a dead end, and when the window 2 is partially opened, the pin 7 comes into contact with the one end to keep the window 2 partially open. The other end of the connecting groove 17 is open. When the window 2 is closed, the pin 7 comes near the other end of the connecting groove 17. Here, when the operating tool 8 is operated to move the check arm 6 in the longitudinal direction, the pin 7 is detached from the connecting groove 17. Here, the window 2 can be fully opened.

  Patent Document 2 discloses a casement window provided with a shoji 20 so as to protrude into the window frame 10. The opening window connects the lower rod 22 and the lower frame 12 with an arm member 30. In the arm member 30, a long hole 31 facing the root side with the distal end closed is opened at a portion 31 a near one end of the arm member 30. The pin 41 slidably fitted in the long hole 31 stops at the distal end side of the long hole 31 when the shoji 20 is partially opened. When the shoji 20 is closed, it is near one end portion 31 a in the long hole 31. It is in. A switching member 40 that allows the pin 41 to move along the longitudinal direction of the lower rod 22 is provided on the lower rod 22. When the pin 41 is moved using the switching member 40 and is moved out of the long hole 31, the shoji 20 can be fully opened.

  In Patent Document 1, a check arm 6 and a pin 7 having a connecting groove 17 are formed, and in Patent Document 2, an arm member 31 having a long hole 31 and a pin 41 form a sliding pair, and the check arm 6 is pivotally attached to an opening frame. The arm member 31 is pivotally attached to the lower frame 12. Therefore, together with the shoji and the opening frame, a slider rotation chain is formed.

  Comparing Patent Document 1 and Patent Document 2, in Patent Document 1, the check arm 6 is moved in the longitudinal direction to remove the pin 7 from the connecting groove 17. In Patent Document 2, the pin 41 is moved in the longitudinal direction of the arm member 30 to remove the pin 41 from the elongated hole 31.

In view of this configuration, Patent Document 2 is obtained by replacing the mechanism of Patent Document 1.
JP 2000-38866 A JP 2005-76334 A

  According to the invention described in Patent Document 1, since the check arm 6 needs to remove the pin 7 from the connecting groove 17, the recess 15 must be provided in the middle of the check arm 6. For this reason, it is a restriction that the check arm 6 must be stored in a narrow space between the window 2 and the frame material of the opening frame. Similarly, in Patent Document 2, it is necessary to remove the pin 41 from the long hole 31, and the recessed portion 37 must be provided in the middle of the arm member 30. For this reason, it is a restriction that the arm member 30 must be placed between the saddle 20 and the frame material of the window frame 10. Further, in the above, when the shoji is opened halfway, the force to open the shoji is applied as a tensile force to the restraining arm 6 and the arm member 30, so that bending strength is applied around the concave portion 15 and the concave portion 37, so that strength and rigidity are increased. The wall thickness will increase to maintain. In manufacturing, the check arm 6 and the arm member 30 are also costly because they are not bent in press working.

  In Patent Document 1, a lock body 35 is provided so that the window 2 is not closed by wind when the window is half open. The lock body 35 is a plastic molded product and elastically deforms the engaging claw 37 to hold the pin 7 (see paragraph [0029]).

  However, Patent Document 1 confesses that such a holding of the window 2 can only withstand a degree of wind suitable for ventilation (see paragraph [0028] lines 7 to 10). Further, Patent Document 2 does not disclose the retention of shojis against wind.

  As described above, the window configuration described in Patent Document 1 is closed with at least wind power suitable for ventilation.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an opening limiting stopper device for an open window capable of half-opening and fully opening a shoji that can be stored in a narrow space between the opening frame and the shoji.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an opening limiting stopper device for an open window capable of half-opening and fully opening a shoji that can maintain a half-open state regardless of wind power in the half-open state of the shoji. Note that half-opening does not strictly indicate only half of the full-open dimension, but also includes partial openings that are limited in advance.

A first arm invention which is pivotally connected to one of the frame member of the window opening of the present invention, in the longitudinal direction of the pin axis fitted match that arms provided stile shoji along the frame member an arm for supporting the half-open shoji and a locking portion which pin shaft may enter intersecting the guide slot and along intends elongated guide hole at the tip end of the guide slot, the unlocking device for moving the locking portion from the pin axis And an opening limiting stopper device comprising a half-open full-open switching operation device that engages and disengages the pin shaft with the guide elongated hole ,
The lock release device is a pedestal fixed to the heel and a lock that pivots on the pedestal and operates on the tip of the arm while rotating by the operation of the unlocking operation member provided on the pedestal to remove the arm lock from the pin shaft. It is an opening restriction stopper device in a casement window characterized by having a lock release device provided with a release member .

According to a second aspect of the present invention, an intermediate portion is pivotally attached to a pedestal, and a cam lever portion rotated by a lock release operation member at one end with respect to the pivot attachment position is applied to the arm at the other end so that a lock portion of the arm is provided. The opening restricting stopper device for an opening window according to the first aspect of the present invention, further comprising a lock releasing member having a releasing action lever portion that takes a position to be removed from the pin shaft and a position to be stored away from the arm.

A third invention is the first or opening limit stop in the opening window according to any one of the second invention is characterized in that a lock release device and half-open fully open switch operating device integrated pedestal of the present invention Device.

According to the first aspect of the present invention, the unlocking member acts on the tip of the arm to rotate the arm in the unlocking direction.
According to the embodiment of the present invention , since the plate-like arm is used, it can be easily accommodated in the narrow space between the frame material of the opening frame and the gap of the shoji when the shoji is closed. Further, when the shoji is opened, an impact force based on the inertia of the shoji is applied to the arm when it collides with the end of the pin shaft and the guide slot. However, since each portion of the arm receives only a tensile force, the arm can be made small.

  Since the operation device takes the position where it engages with the guide slot of the arm from the direction intersecting the plate surface of the arm and the position where it escapes, the stroke of the pin shaft can be shortened just by exceeding the plate thickness of the arm. Is good. Furthermore, since the operation of moving the pin shaft is performed in the direction crossing the longitudinal direction of the rod provided with the operation device, the operation is easy.

According to the embodiment of the present invention, the shoji is automatically locked only by partially opening the shoji.
The shoji is prevented from closing by shock due to a gust of wind or the like.

According to the embodiment of the present invention , the process of the pin shaft is merely the addition of the thickness of the arm to the thickness of the collar, so the stroke of the pin shaft is small and the support portion of the pin shaft is also shortened in the axial direction. Since the pin shaft is short and the stroke is also short, it is possible to adjust the operating device provided with a pin shaft that reciprocates across the rod to the width of the rod.
According to the embodiment of the present invention , at the beginning of opening of the shoji at the time of the half-opening operation of the shoji, the resistance for rotating the arm is not added, and the resistance of the shoji is not released.

  Further, the arm does not interfere with the vertical hook and can be easily stored in a narrow space within the expected size of the vertical hook.

According to the embodiment of the present invention, the unlocking device only rotates the arm to the position where the pin lock part is removed from the pin shaft, and the arm is rotated in the opposite direction to the locked operation. Certain and smooth.

According to the second aspect of the present invention, the arm can be unlocked by acting on the arm tip only by operating the unlocking operation member.

According to the embodiment of the present invention, the switching knob has the same stroke as the stroke of the pin shaft. Therefore, when selecting half-open or full-open, the switching knob has a short stroke and only moves in a direction across the ridge. There is good operability.

According to the third aspect of the present invention, since the device for selecting the half-opening and full-opening of the shoji and the unlocking at the time of half-opening are integrated, it is easy to attach to and remove from the shoji.

Embodiments of the present invention will be described below with reference to the drawings.
Example 1
(overall structure)
FIG. 1 is a front view of a window viewed from the indoor side.

  As shown in FIG. 1, a shoji 2 is provided in the opening frame 1. This is a laterally-opening window (single-opening) in which the shoji 2 is attached with a hinge with the vertical frame 1a1 on the right side of FIG. In addition, even in a window that is attached between each of the vertical frames 1a and 1a1 of the opening frame 1 and the vertical frames 2a and 2a1 of the shoji 2 so as to rotate or swing out on a horizontal axis, and opens outward. The present invention applies. In other words, the shoji 2 is a window that opens outward with respect to the opening frame 1. In this example, we will discuss the casement window.

  An opening restriction stopper device (hereinafter referred to as an opening restriction stopper device) 3 for the opening window is disposed between the vertical frame 1a and the vertical rod 2a. The opening restriction stopper device 3 is a device that controls half-opening and full-opening of the shoji 2.

FIG. 2 schematically shows a state in which the shoji 2 is opened from FIG. 1, and is a plan view with respect to FIG. The opening limiting stopper device 3 has an arm device 4 whose one end is pivotally attached on the side of the vertical frame 1a, and a slider (described later) that can be engaged with and disengaged from the arm device 4 and controls the slider. 5 (hereinafter referred to as an operating device). The arm device 4 is attached to the vertical frame 1a. The slider and the operation device 5 are attached to the vertical rod 2a. When the shoji 2 is fully opened, the fully open position is determined by the tilt stoppers 31 provided on the lower frame 1a2 and the lower collar 2a2.
(Cross section of opening frame and shoji)
FIG. 3 is a horizontal cross-sectional view of the vertical frame 1a and the vertical frame 2a in a state in which the shoji 2 is closed, and FIG. 4 is in a half-opened state.

  As shown in FIG. 3, the vertical frame 1a is provided with vertical ridges 1c and 1d projecting toward the side of the flange 2a on the inner peripheral material 1b facing the outer periphery of the shoji. The inner peripheral material 1b has an expected direction on the plate surface. The ridge 1d has a vertical groove 1e that is open on the indoor side and faces the outside.

  A packing 6 in contact with the inner member 2b facing the indoor side of the vertical flange 2a is fitted into the groove 1e.

  The vertical collar 2a is provided with an outer peripheral material 2c parallel to the inner peripheral material 1b of the vertical frame. The outer peripheral material 2c is provided with ridges 2d to 2h in the vertical direction toward the inner peripheral material 1b of the vertical frame. The protrusions 2d to 2h are arranged in parallel from the indoor side toward the outdoor side. The protrusion 2d forms the same plane as the inner member 2b. The protrusion 2h forms the same plane as the outer member 2i of the vertical collar 2a.

  The ridges 2g and 2h are key-shaped with the tips facing each other, and a groove 2j is formed between the ridges 2g and 2h. The packing 7 fitted and held in the groove 2j comes into pressure contact with the protrusion 1c of the vertical frame when the shoji 2 is closed.

  The packing 7 includes an attachment portion 7a that fits into the groove 2j, a plate-like portion 7b that extends outside the groove 2j and extends toward the indoor side, and a sealing portion 7c that contacts the frame side at the tip of the plate-like portion 7b. And have. The plate-like portion 7b has a large expected width and can be greatly bent toward the inner peripheral member 1b. The sealing part 7c has a hollow cylindrical shape. At a position where there is no arm 11 (described later), the sealing portion 7c is pressed against the vertical projection 1c and the vertical projection 2g with the shoji 2 closed.

  In the vertical flange 2a, the intermediate member 2k provided in parallel with the outer peripheral member 2c forms a hollow portion 2m together with the outer peripheral member 2c, the inner member 2b, and the outer member 2i. The inner peripheral side of the intermediate material 2k is a glass groove 2n.

The glass groove 2n is between the protrusion 2o protruding from the inner member 2b toward the outdoor side and the protrusion 2p, 2q protruding from the outer member 2i toward the indoor side. The ridges 2o and 2p are inner peripheral members of the vertical flange 2a. The protrusion 2o has an L-shaped cross section, and a space 2r communicating with the glass groove 2n is formed inside the L-shape.
(Arm device)
FIG. 3 is a plan view of the armpit when the shoji is closed and FIG. 4 is a half-opening of the shoji. FIG. 5 is a diagram of the arm device 4 as viewed from the direction of arrow A in FIG. FIG. 6 is a view of the opening limiting stopper device for the opening window as viewed from the front of FIG. 3 (viewed from below). The arm device 4 will be described with reference to FIGS.

  The arm device 4 includes an arm mounting base (hereinafter referred to as a base) 8, a support shaft 9 fixed to the base 8, a base 9 that can rotate at the root, and a tilt that is tiltable with respect to the axial direction of the support shaft 9. The arm 11 is fitted, and a conical torsion coil spring (hereinafter referred to as a spring) 12 that biases the arm 11 toward the indoor side.

  The base 8 has flanges 8c above and below the substrate 8a. A stopper 8d is provided on the lower flange 8c. The stopper 8d is provided with a stepped portion on the lower flange 8c where the dog surface 11b, which is an edge close to the base side of the arm 11, hits (see FIG. 5). In a state where the base 8 is mounted in contact with the inner peripheral member 1b of the frame 1a, the base 8 is bent in the same direction as the flange 8c (a direction away from the inner peripheral member 1b) on the inner side of the substrate 8a. The spring hook 8e rises (see FIG. 5).

  As shown in FIG. 6, the support shaft 9 has a small diameter shaft portion 9a, a large diameter shaft portion 9b expanded from the small diameter shaft portion 9a, and a collar 9c having a diameter larger than that of the large diameter shaft portion 9b in this order in the axial direction.

  A base small diameter shaft portion 9a of the support shaft 9 is fitted and caulked in the hole 8a1 of the base plate 8a.

  A base hole 11c of the arm 11 is loosely fitted to the large diameter shaft portion 9b of the support shaft 9 on the flange 9c side. A spring 12 is inserted into the support shaft 9 between the substrate 8 a and the arm 11. As shown in FIG. 5, one end 12a of the spring 12 is locked to the spring hook 8e of the base 8, and the other end 12b is locked to the spring hook 11a of the arm 11, and the arm 11 is centered on the support shaft 9 in FIG. When the arm 11 is biased clockwise and no external force is applied to the arm 11, the dog surface 11b of the arm 11 comes into contact with the stopper 8d of the base 8, and the arm 11 is moved from the support shaft 9 as shown by the solid line in FIG. It is drooping.

  The base 8 is brought into contact with the inner peripheral member 1b of the vertical frame, and the board 8a is inserted into the hole 8b provided in the substrate 8a, and a small screw (not shown) is screwed into a back plate (not shown) provided in the inner peripheral member 1b. It is fixed.

  In the arm 11, the above-mentioned spring hook 11a, the dog surface 11b, the hole 11c loosely fitted to the support shaft 9, and the pin of the operation device to be described later are engaged and disengaged, and the pin can be moved while the pin is engaged. And a single guide slot 11d. The guide slot 11d has a pin engaging / disengaging part 11e, a pin moving part 11f, a pin guide part 11g, and a pin lock part 11h in this order.

  The arm 11 has a flat plate shape, and is reinforced and stiffened by slightly bending the edge on one side in the longitudinal direction so that a folding line 11i appears in the longitudinal direction. Further, the folding line 11i faces the vertical direction with the arm 11 hanging down. As shown in FIG. 3, in the state in which the shoji 2 is closed, the edge 11p of the arm bent by the folding line 11i approaches the inner peripheral member 1b of the vertical frame 1a. And it extends beyond the ridge 1c of the vertical frame to the outdoor side. However, the plate-like portion 7b of the packing 7 is designed to be sealed beyond the arm edge 11p. At this time, the sealing portion 7c is in pressure contact with the edge 11p of the arm 11 and the projection 1c of the vertical frame.

The pin engaging / disengaging part 11e is provided in the middle of the arm 11 in the longitudinal direction. The pin moving portion 11f is provided so as to become narrower as it goes from the pin engaging / disengaging portion 11e to the upper end of the pin guide portion 11g in a direction substantially perpendicular to the longitudinal direction of the arm 11. The pin guide portion 11g has a convex curve portion that is loosely inclined obliquely downward to the outdoor side following the straight portion and the straight portion following the pin moving portion 11f, and reaches the vicinity of the tip of the arm 11. The pin lock portion 11h is provided short from the lower end of the pin guide portion 11g toward the outside. The pin lock portion 11h is an arc centered on the support shaft 9 or a linear shape close to the arc.
(Pin device)
As shown in FIGS. 3 and 4, the pin device 13 is provided on the vertical hook 2a. 3 shows a state in which the shoji 2 is closed, and FIG. 4 shows a state in which the shoji 2 is half-opened. The pin device 13 has a cylindrical portion 14a having a cylindrical outer periphery that is press-fitted into the circular hole 2c1 of the outer peripheral member 2c of the vertical rod and the circular hole 2k1 of the intermediate member 2k, and a collar 14b having an enlarged diameter on one side in the axial direction. And a pin shaft 15 slidably fitted in the central hole 14c of the bush 14.

  The pin shaft 15 protrudes on both sides of the bush 14 and has a flange 15b on the front end side of the shaft portion 15a in which the middle portion slides with the central hole 14c of the bush. It has a shifter engaging portion 15c as a groove. The collar 15b has such a size that the pin engaging / disengaging part 11e of the arm 11 shown in FIG. Since the arm 11 tilts the plate surface with respect to a plane perpendicular to the expected direction during the operation described later, the width of the pin guide portion 11g and the pin lock portion 11h is slightly larger than the diameter of the shaft portion 15a. The pin shaft collar 15b has a diameter larger than the width of the pin guide portion 11g and the pin lock portion 11h of the arm. In FIG. 5 (see FIG. 11), the collar 15b passes through the pin moving part 11f of the arm when moving from the pin engaging / disengaging part 11e to the pin guiding part 11g. When the pin shaft 15 is moved in the crossing direction to the plate surface of the arm 11 near the pin guide portion 11g of the arm pin moving portion 11f, the collar 15b overlaps the edge of the pin moving portion 11f, and the pin shaft 15 cannot be retracted.

  The shaft portion 15a of the pin shaft is just sized to fit into the pin guide portion 11g and the pin lock portion 11h. The arm 11 tilts the plate surface with respect to a plane perpendicular to the wall surface and perpendicular to the wall surface during the operation described later, so that the width of the pin guide portion 11g and the pin lock portion 11h is slightly larger than the diameter of the shaft portion 15a. The pin shaft 15 serves as a slider having a roller action with respect to the pin guide portion 11g.

  The pin shaft protruding rightward in FIG. 3 from the bush 14 enters the space 2r.

  The shifter engaging portion 15c of the pin shaft is engaged with a shifter of the operation device 5 described later. The pin shaft 15 is at the left end in FIG. In FIG. 3, when the pin shaft 15 is guided to the right by the bush 14, the collar 15b passes through the pin engaging / disengaging part 11e of the arm, and the collar 15b contacts the collar 14b of the bush. As a result, the pin shaft 15 is in a position where it does not interfere with the arm 11. When the pin shaft 15 is moved to the left from the right end, the collar 15b passes through the pin engaging / disengaging portion 11e of the arm.

Since the plate thickness of the arm 11 and the thickness of the collar 15b can be reduced, the stroke of the pin shaft 15 is small, and when the pin shaft 15 is retracted, it is provided on the protrusion 2o and the outer peripheral member 2c which are the inner peripheral members of the vertical rod. The pin apparatus 13 can be accommodated in the tip of the protrusions 2d and 2e.
(Paper shoji half open full open switching operation device)
The operating device 5 includes a shifter device 16 that engages and disengages the pin shaft 15 with the arm 11. In this example, the unlocking device 17 for releasing the lock of the shoji 2 locked in the half-open state of the shoji is attached to the operating device 5, and both are attached to the shoji 2. In this example, the shifter device 16 and the lock release device 17 are mounted on an integrated pedestal, and the pedestal is attached to the shoji 2.

  As shown in FIG. 1, the operating device 5 is disposed on the inner material 2 b of the vertical arm 2 a of the shoji 2.

  The operation device 5 will be described in detail below.

FIG. 6 shows a front view of the operating device 5 as viewed from the room side. 7 is a side view of FIG. 6, FIG. 8 is a plan view of FIG. 6, FIG. 9 is a rear view of FIG. 6, and FIG.
(Shifter device)
The shifter device 16 is provided on the base 18. The seat 18 shown in FIGS. 9 and 10 has a seating surface 18a that surrounds the edge of the seat 18 abutting against the inner member 2b of the vertical flange 2a, and a small screw (not shown) is inserted through the small screw hole 18b of the base 18. It is fixed by being screwed into the inner member 2b. The seat surface side of the machine screw provided with the machine screw hole 18b is a rectangular recess 18r when viewed from the front. A cap 21 that is just fitted into the recess 18r is fitted so that the small screw cannot be seen.

  When the pedestal 18 is attached to the vertical rod 2a, a guide groove 18c is provided in the left-right direction on the front side of the pedestal 18 as viewed from the indoor side. As shown in FIG. 17, a stopper 18c1 is provided at the outer peripheral end of the vertical flange 2a of the guide groove 18c. The bottom member 18d of the guide groove 18c is provided with a hole 18e penetrating in the front-rear direction (viewing direction). On the seat surface 18a side, a wide guide groove 18f is provided in the left-right direction (direction parallel to the wall surface) parallel to the guide groove 18c. Concave grooves 18f1 and 18f2 (see FIG. 9) are provided on the opposing surfaces that are parallel to the guide groove 18f.

  As shown in FIG. 17, the shifter 19 is inserted into the base 18 through the hole 18e. The shifter 19 is provided with a knob 19a that is guided by being just fitted into the guide groove 18c of the base. As shown in FIG. 10, the end of the shifter 19 opposite to the half-open / full-open switching knob (hereinafter referred to as switching knob) 19a is a forked yoke 19b.

  As shown in FIGS. 3 and 4, the forked yoke 19 b is always fitted in the shifter engaging portion 15 c of the pin shaft 15. Therefore, the pin shaft 15 which is a round shaft is supported by the bush 14 and can be rotated and moved in the axial direction. Note that the yoke need not be bifurcated as long as it is fitted to the shifter engaging portion 15c. A guide plate 22 in contact with the bottom member 18d is fitted in an intermediate portion 19c between the forked yoke 19b and the knob 19a of the shifter 19.

  As shown in FIG. 9, the guide plate 22 has a base portion 22c that is movably fitted in the guide groove 18f, and the tip convex portion 22b can be elastically fitted in the concave grooves 18f1 and 18f2, and can be snapped in the same plane as the base portion 22c. It is an integrated body mainly including an arm 22a, a hole 22d that fits into the shifter bifurcated yoke 19b and penetrates in the front-rear direction, and a stand part 22e that protrudes from the base part 22c to the back part. The tip convex portion 22b has a shape close to a semicircle.

  The tip of the assembly screw 30 penetrating the stand portion 22e of the guide plate 22 is screwed into the shifter 19 so that the guide plate 22 does not come out of the shifter 19.

  As shown in FIG. 17, both ends of the switching knob 19a coincide with both edges of the pedestal 18 in the width direction when the switching knob 19a is in contact with the stopper 18c1. At this time, the pin shaft 15 is at the left end and is engaged with the arm 11. The hole 18e is open to allow the right line in FIG. The guide groove 18f is provided so as to allow the right row in FIG. The height of the stopper 18c1 is smaller than the depth d of the guide groove 18c, and the lip 19a1 provided on the switching knob 19a as viewed from the front covers the stopper 18c1.

  The switching knob 19a is provided with a concave portion 19d, and a plurality of vertical projections 19e are provided on the bottom of the concave portion 19d. Therefore, the left and right movement of the shifter 19 is facilitated by applying force with the fingertip to the bottom of the concave portion 19d of the knob 19a. .

  With this configuration, the operating device 5 can be accommodated within the horizontal width of the vertical rod 2a and can be brought close to the vertical frame 1a. That is, it fits well. Due to the relationship between the arm 11 and the pin shaft 15, the stroke of the knob 19a in switching between half open and full open is small and the operability is good.

An unlocking device 17 is provided below the shifter device 16.
(Unlock device)
As shown in FIG. 6, as a whole, a guide groove 18g that is long in the vertical direction is provided on the front side of the rectangular pedestal 18 that is long in the vertical direction and viewed from the indoor front side. As shown in FIG. 10, a long hole 18i extending in the vertical direction through the bottom member 18h of the guide groove 18g is provided in parallel with the guide groove 18g. As shown in FIG. 9, a guide portion 18 j is provided on the back surface of the pedestal 18. The guide portion 18j whose bottom is the bottom member 18h is wide and parallel to the guide groove 18g. Concave grooves 18j1 and 18j2 are provided on the opposing wall which is a parallel plane of the guide portion 18j.

  An unlocking knob 23 is fitted in the guide groove 18g on the front side so as to be movable up and down as an unlocking operation member. A protrusion 23 a provided on the back surface of the unlocking knob 23 is inserted through the long hole 18 i and protrudes toward the back of the pedestal 18. A back plate 24 is fitted to the guide portion 18j so as to be movable in the vertical direction. The protrusion 23 a fits into the hole 24 i of the back plate 24, and the tip protrudes from the back plate 24 through the hole 24 i. The protrusion 23a protruding from the back plate 24 is provided with a circumferential groove close to the plate surface of the back plate 24. A shaft retaining ring 25 is fitted in the groove. As a result, the unlocking knob 23 and the back plate 24 are connected, and when the unlocking knob 23 moves up and down along the guide groove 18g, the back plate 24 moves up and down along the guide portion 18j.

  As shown in FIG. 9, the back plate 24 is provided with a snap arm 24a. The snap arm 24a can be fitted into either one of the concave grooves 18j1 and 18j2 with its convex end 24b elastically. The tip convex part 24b has a shape close to a semicircle. At the lower limit position of the back plate 24, the tip convex portion 24b is just fitted into the concave groove 18j2. The groove 18j1 starting from above the groove 18j2 is long in the vertical direction. The snap arm 24a does not press the concave groove 18j1 in a state where the leading end convex portion 24b enters the concave groove 18j1. Or press with light force. Therefore, when the tip convex portion 24b moves up and down in the concave groove 18j1, there is almost no frictional resistance. At the upper end of the back plate 24, there is a cylindrical projection 24c integrally facing the outside. The protrusion 24c is for driving a bell crank-shaped member to be described next and is a cam follower.

  As shown in FIG. 10, a bell crank-shaped release member 26 is rotatably fitted in a cylindrical dowel 18 k erected integrally with the back surface of the pedestal 18. The small member 28 screwed into the tip of the dowel 18k through the washer 27 prevents the release member 26 from moving in the axial direction of the dowel 18k, and is limited to movement in a plane parallel to the shoji plane.

  In the release member 26, a projection 24c of the back plate acts on one cam lever portion 26a. The other release action lever part 26b has an action described later in which the release action part 26b1 acts on the lower edge of the tip of the arm 11 to lift the arm 11.

  The cam lever portion 26a is integrally provided with a balance weight 26c. The balance weight 26c is located on the opposite side of the release action part 26b1 with the dowel 18k interposed between the release action lever part 26b and the side when the tip of the arm 11 is lifted to assist the unlocking action (described later) of the arm 11. To do. The balance weight 26c reinforces the cam lever portion 26a.

  A compression coil spring (hereinafter referred to as a spring) 29 is housed in a spring mounting portion 18m which is a vertical groove provided in the bottom member 18h of the guide portion 18j. In the spring 29, the lower end (circumferential end of the groove) 18n of the spring mounting part 18m is a spring seat on one lower end side, and the lower surface of the protrusion provided on the back plate 24 is the other upper spring seat 24h (see FIG. 10). .

  The back plate 24 is always urged upward by a spring 29 as shown in FIGS. The upper limit 24e of the back plate 24 is abutted against a stopper portion 18p provided at the upper end of the guide portion 18j on the back side of the pedestal 18, so that the upper limit is determined.

In the above, the base 18, the shifter 19, and the release knob 23 are, for example, AES (acrylonitrile-ethylene-propylene-styrene copolymer), guide plate 22, back plate 24, release member 26, and synthetic resin such as POM (polyacetal). It is a molded product. Each member of the arm device 4 is made of an iron-based metal.
(Function)
In a state in which the shoji 2 is closed, the fastening handle 32 allows the shoji 2 to be released from being fixed to the opening frame 1 and released.

  When opening is possible, selection is made as to whether the shoji 2 can be fully opened or stopped halfway.

  The switching knob 19a for switching between full open and half open is operated in FIGS. When the shoji 2 is closed, the arm 11 is in a position indicated by a solid line in FIG. 5 and is urged clockwise about the support shaft 9 by the spring force of the spring 12. The dog surface 11b of the arm 11 hits the stopper 8d of the arm mounting base 8, and the arm 11 is stopped from rotating in a state where the contact surface 11j of the tip does not hit the protrusion 1d of the vertical frame 1a.

  In FIG. 3, the pin shaft 15 is in the left limit position, and the flange 15 b at the tip extends to the left of the pin engaging / disengaging portion 11 e of the arm 11.

  The shifter 19 is at the left limit position in FIG. 3, and the switching knob 19a is housed in the pedestal 18 as shown by the solid lines in FIGS.

  As shown in FIG. 9, the back plate 24 of the unlocking device 17 is lifted by the spring force of the spring 29, and is at a fixed position at the rising limit by the stopper portion 18 p at the end of the guide portion 18 j of the base. Accordingly, the protrusion 24c is at the uppermost position. At this time, the release member 26 is oriented vertically by the gravity of the release action lever portion 26b with the dowel 18k as the center. When the release member 26 is oriented vertically as a whole, the release member 26 is within the projection of the pedestal 18. The cam lever portion 26a is in contact with or close to the protrusion 24c.

  The above is a state in which the selection of half-opening the shoji 2 with the shoji 2 closed is performed.

  FIG. 11 shows the relative positions of the arm 11 and the pin shaft 15 when the shoji 2 is half-opened.

  When the shoji 2 is opened, the operating device 5 moves outward together with the shoji 2 together with the attached unlocking device 17. At this time, as shown in FIG. 11a, the pin shaft 15 engaged with the pin engaging / disengaging part 11e of the arm moves the pin moving part 11f toward the upper end part of the pin guiding part 11g to move the pin guiding part. It touches the edge of 11g (b of FIG. 11). When the pin shaft 15 moves directly from the pin engagement / disengagement part 11e to the pin guide part 11g, the arm 11 starts to move outward as soon as the shoji 2 starts to open. As a result, the reference numeral 11i side of the arm (the right side of the arm vertical state in FIG. 5) abuts against the protrusion 2h of the vertical rod 2a, thereby preventing the arm 11 from moving.

  Therefore, by moving the pin shaft 15 parallel to the moving part 11f from the pin engaging / disengaging part 11e, the shoji 2 can be moved to the outside of the chamber by the dimension, and the clearance between the arm 11 and the vertical protrusion 2h can be secured. 11 can move without trouble. As a result, the arm can be stored in a narrow space of the expected size of the vertical hook.

  Up to this point, the arm 11 is stationary.

  Subsequently, when the shoji 2 is moved outward, the shaft portion 15a of the pin shaft 15 slides in contact with the edge at the upper end portion of the pin guide portion 11g, or the pin shaft 15 is supported by the bush 14 to rotate and roll. Add and roll to push the heel arm 11 outward. When the shoji 2 is further opened, the arm 11 rotates counterclockwise in FIGS. 5 and 11 about the support shaft 9 and moves outward. At this time, the arm tightens the spring 12. The pin shaft 15 that moves together with the further outward movement of the shoji 2 advances in the pin guide portion 11g of the guide slot 11d (FIG. 11, c → d). Since the diameter of the shaft portion 15a of the pin shaft 15 and the width of the pin guide portion 11g are substantially the same, the pin shaft 15 cannot be removed from the pin guide portion 11g in the axial direction because of the collar 15b.

  The ratio of the displacement of the door of the shoji 2 to the displacement of the tip of the arm 11 is a curved curve that protrudes diagonally downwards outward with the shoji 2 closed when the shoji 2 is closed. The change in the rotation ratio of the arm 11 is made smaller than when the pin guide portion 11g is a straight line. When the shaft portion 15a of the pin shaft 15 moves through the pin guide portion 11g of the guide elongated hole and reaches the intersection of the pin guide portion 11g and the pin lock portion 11h (FIG. 11, d → e → f), the pin shaft 15 is Even if the arm 11 is pushed, the arm 11 does not rotate (FIG. 11, f). Then, as the pin shaft 15 moves slightly toward the outdoor side from the intersection, the arm 11 rotates clockwise in FIG. 11 by the moment about the support shaft 9 based on the weight of the arm 11 and the spring force of the spring 12. , The pin lock portion 11h enters the shaft portion 15a of the pin shaft 15, the terminal end of the pin lock portion 11h hits the shaft portion 15a of the pin shaft 15, and the arm 11 stops rotating (FIG. 11, f → g). At this time, the arm 11 rotates a little clockwise around the support shaft 9.

  As shown in FIG. 4, at this time, the crossing angle of the shaft portion 15 a of the pin shaft 15 and the plate surface of the arm 11 is not a right angle but is oblique. Therefore, the projection length of the pin shaft 15 from the bush 14 is set so that the collar 15b of the pin shaft 15 is sufficiently separated from the collar 14b of the bush 14 so as not to obstruct the oblique crossing of the pin shaft 15 and the arm 11. It has established.

  When the pin shaft 15 is at the terminal end of the pin lock portion 11h, the shoji 2 is held in a half-open state. If wind pressure is applied to close the shoji 2 due to strong winds, gusts, etc., the shaft portion 15a of the pin shaft 15 is in the pin lock portion 11h, and the arm 11 is simply supported by the peripheral edge of the pin lock portion 11h. 11 cannot be rotated clockwise in FIG. Therefore, it is possible to prevent the half-open shoji 2 from closing suddenly due to strong winds and gusts.

  To close the half-opened shoji 2, the release knob 23 is pushed down against the spring force of the spring 29. As the release knob 23 is lowered, the back plate 24 is lowered, and the protrusion 24c provided on the back plate 24 pushes the cam lever portion 26a of the release member 26 downward, so that the release member 26 is counterclockwise in FIG. Rotate around. By this rotation, the release action lever portion 26b turns up counterclockwise to pressurize the lower side of the distal end portion of the arm 11, and to the moment based on the weight of the arm 11 around the support shaft 9 and the spring force of the spring 12. Accordingly, the arm 11 is rotated counterclockwise in FIG. 5 to be raised (two-dot chain line in FIG. 5).

  As the back plate 24 approaches the lowering limit, the tip convex portion 24b of the snap arm reaches the lower end of the concave groove 18j1 that is long in the vertical direction. The back plate 24 is further lowered, and the snap arm 24a bends when the tip convex portion 24b crosses the mountain between the concave grooves 18j1 and 18j2, and the tip convex portion 24b passes through the mountain and the tip convex portion 24b just fits into the concave portion. The groove 18j2 enters with the elasticity of the snap arm 24a.

  As a result, the crossing portion of the pin lock portion 11h and the pin guide portion 11g comes to the position of the shaft portion 15a of the pin shaft. In this state, the arm 11 is biased in the direction in which the tip is lowered about the support shaft 9 by the moment applied to the arm 11 by the spring force of the spring 12 and the moment due to the weight of the arm 11. The arm 11 tries to push down the release action lever portion 26b of the release member 26, whereby the release action lever portion 26b receives rotational force around the dowel 18k, and the cam lever portion 26a biases the protrusion 24c on the back plate upward. The back plate 24 is raised. Further, the back plate 24 is going to be raised by the spring force of the spring 29. The snap arm 24a has a tip convex portion 24b in the concave groove 18j2, and the snap arm 24a is bent to allow the tip convex portion 24b in the concave groove 18j2 to escape upward from the concave groove 18j2. I have to do it.

  The arm 11 is applied to the back plate 24 that causes the tip convex portion 24b to escape from the groove 18j2 than the force obtained by adding the spring force of the spring 29 to the upward biasing force of the back plate 24 based on the force applied to the release action lever portion 26b. The power is great. Here, when the shaft portion 15a comes to this crossing portion of the arm 11, the crossing portion inner side 11k has a protruding shape downward as shown by a two-dot chain line in FIG. The crossing portion outer side 11m is a circular arc that is concave upward. In this state, the positions of the arm 11 and the pin shaft 15 are determined.

  Even if the finger is released from the release knob 23 in this state, the arm 11 and the release member 26 remain stopped. After releasing the finger from the release knob 23 and moving the sliding handle 2 in the direction of closing the shoji 2 with the tightening handle 32, the pin shaft 15 moves indoors.

  The shaft portion 15a moves on the pin guide portion 11g of the arm 11 by the movement of the pin shaft 15 on the indoor side. As a result, the arm 11 is biased by the pin shaft 15 around the support shaft 9, the moment based on the weight of the arm 11 around the support shaft 9, and the spring force of the spring 12, so that the tip moves indoors. Rotate to Then, the arm 11 pushes down the release action lever portion 26b. The release member 26 is rotated around the dowel 18k in a direction in which the release action lever portion 26b is directed downward and in a direction in which the cam lever portion 26a is directed upward. The cam lever portion 26a pushes the projection 24c upward, resists the escape resistance from the concave groove 18j2 of the tip convex portion 24b of the snap arm 24a fitted in the concave groove 18j2, and assists the spring force of the spring 29. Then, the back plate 24 is raised. After the front end convex portion 24b of the snap arm 24a has escaped from the concave groove 18j2, the back plate 24 is urged by the spring force of the spring 29 and moves up.

  At this time, it is not necessary to operate the release knob 23 with a finger. The release member 26 rotates about the dowel 18k, and the release lever portion 26b is separated from the arm 11. As the back plate 24 is lifted, the release member 26 is also raised by the protrusion 24c, so that the cam lever portion 26a can freely rotate upward. Accordingly, since the release action lever portion 26b is made heavier and longer than the cam lever portion 26a, the release action lever portion 26b turns downward around the dowel 18k. As a result, the cam lever portion 26a is in a position where the release lever portion 26b is substantially suspended at a position where it hits or approaches the protrusion 24c of the back plate 24 at the ascending limit position.

  When the shoji 2 is further moved in the closing direction, the pin shaft 15 moves toward the indoor side, and the shaft portion 15a slides or rolls the pin guide portion 11g of the arm 11 from the arm tip side toward the root side. The arm 11 is urged by the movement of the pin shaft 15 toward the indoor side and is also assisted by its own gravity and the spring force of the spring 12 to rotate around the support shaft 9 toward the indoor side. After the tip convex part 24b escapes from the concave groove 18j2, the back plate 24 raised by the spring force of the spring 29 hits the stopper part 18p and stops. The release knob 23 moves up and returns together with the back plate 24.

  In a state where the pin shaft 15 has reached the upper end on the arm base side of the pin guide portion 11g, the dog surface 11b of the arm 11 contacts the stopper 8d of the arm mounting base 8. In this state, the shoji 2 is not closed. When the shoji 2 is further closed, the shaft portion 15a of the pin shaft is directed indoors through the pin moving portion 11f, and the shoji 2 is closed at a position where the center of the pin engaging / disengaging portion 11e coincides with the center of the pin shaft 15.

  When the shoji 2 is closed, the contact position of the dog surface 11b and the stopper 8d is provided near the support shaft 9 of the arm 11, so that even if the dog surface 11b collides with the stopper 8d, the dog surface 11b of the arm 11 Because of the slow speed, no noise is generated.

  The pin engaging / disengaging part 11e is a round hole. The pin shaft 15 is a round shaft. The diameter of the pin engaging / disengaging portion 11e is larger than the diameter of the flange 15b of the pin shaft 15. The difference between the diameter of the pin engaging / disengaging portion 11e and the diameter of the collar 15b is determined in consideration of manufacturing errors, variation in the amount of shoji drawing, and changes.

In order to allow the shoji 2 to be fully opened, when the switching knob 19a is moved to the right in FIGS. 1, 3, and 6, the shifter 19 follows the pin shaft 15 and moves to the right. The pin shaft 15 is removed from the pin engaging / disengaging portion 11 e of the arm 11. In this state, since the pin device 13 interlocked with the arm device 4 and the operation device 5 is disconnected, the shoji 2 can be freely opened and closed and can be fully opened.
(Example 2)
Example 2 includes all of Example 1.

  The second embodiment will be described with reference to FIG. 13 of the front view, FIG. 14 of the CC sectional view of FIG. 13, FIG. 15 of the side view of FIG.

  As shown in FIG. 14, the base 18 is provided with a round hole 18s penetrating in the front-rear direction. As shown in FIG. 16, the pedestal 18 is provided with a wide guide 18t in the vertical direction on the back surface thereof. As shown in FIG. 14, a dowel 18u integrated with the pedestal 18 is provided between the guides below the guide 18t.

  A lock 33 and a latch 34 are rotatably provided in the round hole 18s. The lock 33 and the latch 34 can be rotated simultaneously only by a specified key (not shown) inserted from the key hole 33a of the lock 33.

  The latch 34 is a crank whose journal is a portion that can be rotated in the round hole 18s, and a pin 34a corresponding to the crank pin protrudes from the back of the operating device.

  A lock plate 35 is fitted to the guide 18t integrated with the base 18 so as to be movable in the vertical direction. The lock plate 35 is provided with a left and right elongated hole 35a through which the pin 34a is movable. And the long hole 35b of the up-down direction in which the dowel 18u enters is provided.

  The tip of the dowel 18 u protrudes slightly rearward (outside of the room) from the back surface 35 c of the lock plate 35. A small screw 37 is screwed into the base 18 via a washer 36 at the tip of the dowel 18u. This prevents the lock plate 35 from falling off.

  The lock plate 35 is integrally provided with a stopper 35d. As shown in FIGS. 15 and 16, when the lock plate 35 is in the raised position, the stopper 35 d is in a position that does not obstruct the left line in FIG. 16 of the shifter 19. Therefore, at this time, the shifter 19 is in a state in which the shoji 2 can be selected to be half open or fully open.

    When a key (not shown) is inserted into the lock 33 and rotated, the latch 34 rotates. The pin 34a rotates around the round hole 18s, slides along the elongated hole 35a, and descends to push down the lock plate 35 so that the stopper 35d is positioned at the engagement position with the shifter 19.

  When the lock plate 35 is lowered, the lock plate stopper 35d is positioned close to the left side surface of the intermediate portion 19c of the shifter 19 when viewed from the back surface in FIGS. As a result, the shifter 19 limits the shoji 2 to the half-opening operation only.

  Therefore, even when an unspecified number of users are used in hospitals or schools, it is possible to prevent people and objects from falling off.

It is a front view of a casement window. FIG. 2 is a schematic plan view of FIG. 1. It is a top view of the opening restriction | limiting stopper apparatus in a shoji closed state. It is a top view of the opening restriction stopper device in the shoji half-open state It is a side view of an arm device. It is a front view of the opening restriction | limiting stopper apparatus in a shoji closed state. It is a side view of an operating device. It is a top view of an operating device. It is a rear view of an operating device. It is BB sectional drawing of FIG. It is a side view which shows operation | movement of a pin shaft and an arm, Comprising: It is A arrow view of FIG. It is a perspective view seen from the back side of an operating device. 6 is a front view of an operating device according to Embodiment 2. FIG. It is CC sectional drawing of FIG. FIG. 14 is a side view of FIG. 13. FIG. 14 is a side view of FIG. 13. It is DD expanded sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Opening frame 1a ... Vertical frame 1a1 ... Vertical frame 1a2 ... Lower frame 1b ... Inner peripheral material 1c, 1d ... Projection 1e ... Strip
2 ... Shoji 2a, 2a1 ... Vertical rod 2a2 ... Lower rod 2b ... Inner material 2c ... Outer peripheral material 2c1 ... Round hole 2d-2h ... Projection 2i ... Outer material 2j ... Groove 2k ... Intermediate material 2k1 ... Round hole 2m ... Hollow portion 2n ... Glass groove 2o, 2p, 2q ... Projection 2r ... Space 3 ... Opening restriction stopper device 4 ... Arm device 5 ... Operating device 6 ... Packing 7 ... Packing 7a ... Mounting portion 7b ... Plate-like portion 7c ... Sealing portion DESCRIPTION OF SYMBOLS 8 ... Arm mounting base 8a ... Board | substrate 8a1 ... Hole 8b ... Hole 8c ... Flange 8d ... Stopper 8e ... Spring hook 9 ... Support shaft 9a ... Small diameter shaft part 9b ... Large diameter shaft part 9c ... Collar 11 ... Arm 11a ... Spring hook 11b ... Dog face 11c ... Hole 11d ... Guide slot 11e ... Pin engagement / disengagement part 11f ... Pin moving part 11g ... Pin guide part 11h ... Pin lock part 11i ... Bending curve 11j ... Contact surface 11k ... Inner crossing part 1 1m ... crossing portion outside 11p ... edge 12 ... spring 12a ... one end 12b ... other end
DESCRIPTION OF SYMBOLS 13 ... Pin apparatus 14 ... Bush 14a ... Trunk part 14b ... Collar 14c ... Center hole 15 ... Pin shaft 15a ... Shaft part 15b ... Collar 15c ... Shifter engaging part 16 ... Shifter apparatus 17 ... Lock release apparatus 18 ... Base 18a ... Seat Surface 18b ... Small screw hole 18c ... Guide groove 18c1 ... Stopper 18d ... Bottom member 18e ... Hole 18f ... Guide groove 18f1, 18f2 ... Concave groove 18g ... Guide groove 18h ... Bottom member 18i ... Long hole 18j ... Guide part 18j1, 18j2 ... concave groove 18k ... dowel 18m ... spring mounting part 18n ... lower end 18p ... stopper part 18r ... concave part 18s ... round hole 18t ... guide 18u ... dowel 19 ... shifter 19a ... switching knob 19a1 ... lip 19b ... two-piece yoke 19c ... middle Part 19d ... Recessed part 19e ... Projection 21 ... Cap 22 ... Guide plate 22a ... Snap arm 22b ... Protruding convex part 22c ... Base part 22d ... Hole 22e ... Stand part 23 ... Release knob 23a ... Protrusion 24 ... Back plate 24a ... Snap arm 24b ... Protruding convex part 24b1 ... Release action part 24c ... Protrusion 24e ... Upper end 24f ... Projection 24h ... Spring seat 24i ... Hole 25 ... Shaft retaining ring 26 ... Release member 26a ... Cam lever part 26b ... Release action lever part 26b1 ... Release action part 26c ... Balance weight 27 ... Washer 28 ... Small screw 29 ... Compression coil spring 30 ... Assembly screw 31 ... Stop stopper 32 ... Tightening handle 33 ... Lock 33a ... Key hole 34 ... Latch 34a ... Pin 35 ... Lock plate 35a, 35b ... Long hole 35c ... Back 35d ... Stopper 36 ... Washer 37 ... Small screw L1, L2 … Perpendicular δ… distance

Claims (3)

Open a pivotally mounted arm on one of the frame member of the window, the guide length and the guide slot intends along the longitudinal direction of the pin axis fitted match that arms provided stile shoji along the frame member An arm that has a lock portion that can receive a pin shaft that crosses the guide elongated hole at the tip end side of the hole, supports the half-opening of the shoji, a lock release device that moves the lock portion from the pin shaft, and a pin shaft that guides the elongated hole. A half-open full-open switching operation device that engages and disengages with an opening limiting stopper device,
The lock release device is a pedestal fixed to the heel and a lock that pivots on the pedestal and operates on the tip of the arm while rotating by the operation of the unlocking operation member provided on the pedestal to remove the arm lock from the pin shaft. An opening restriction stopper device for an opening window, comprising a lock release device having a release member . The intermediate part is pivotally attached to the pedestal, and the cam lever part rotated by the unlocking operation member at one end with respect to the pivoting position acts on the arm at the other end, and the arm lock part is removed from the pin shaft and the arm The opening restriction stopper device for an opening window according to claim 1 , further comprising: a lock release member having a release action lever portion that takes a position to be stored away. The opening restriction stopper device for an opening window according to claim 1 or 2 , wherein the unlocking device and the half-open full-open switching operation device are provided on an integrated pedestal.

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