TWI565871B - Stopper device and door - Google Patents

Description

Blocking device and door and window

The present invention relates to a blocking device and a door and window for limiting the extent to which a door sash is opened relative to an open frame.

A door and window fan such as a single window, a sliding window, or a double-drawing window is opened and closed with respect to the opening frame, and has a blocking device between the opening frame and the door sash. The blocking device is used to limit the extent to which the door sash is open relative to the open frame. In the case of a representative blocking device, there is a person having a restraining arm and a guiding member. For example, the restriction arm is rotatably disposed on the frame member of the door sash through the base end portion, and has a cylindrical fastening member at the front end portion. The guiding member has a guiding groove for guiding the engaging member of the restricting arm in a slidable manner. The guiding members are mounted to the frame members constituting the open frame. The guide groove of the guide member has a width that allows the engagement member to be inserted, and is formed along the longitudinal direction of the frame member (for example, refer to Patent Document 1).

In the blocking device, when the door sash is opened and closed with respect to the opening frame in a state where the engaging member is disposed in the guiding groove of the guiding member, the restricting arm is appropriately rotated according to the opening amount of the door sash, and the engaging member is Move inside the guiding groove. The fastening member is used to open the door and window sash When it becomes larger and moves, it reaches the end of the guiding groove soon. Therefore, the movement of the door sash relative to the opening frame in the opening direction is restricted by the abutment member abutting against the guiding member.

Further, a restricting member is provided in the guide groove of the guiding member. The restricting member is engaged with the engaging member while restricting the movement of the door sash toward the opening direction. As for such a restriction member, a member made of a metal leaf spring is known (for example, refer to Patent Document 2). That is, in the blocking device, a leaf spring is disposed on the guide groove of the guiding member, and the leaf spring is pressed to the end surface of the engaging member to restrict the movement of the engaging member. According to the blocking device, when the movement of the fastening member is restricted by the restriction member, the state in which the door sash is opened with respect to the opening frame is maintained. Therefore, for example, even in the case of wind blowing, the indoor ventilation can be continued. Moreover, since the leaf spring is formed of metal, it is advantageous in terms of durability.

(previous technical literature) (Patent Literature)

Patent Document 1: Japanese Laid-Open Patent Publication No. 2005-344292

Patent Document 2: China New Publication No. 203097518

However, in the doors and windows in which the door and window sash is opened and closed in the out-of-plane direction with respect to the opening frame, the wind load received by the size of the door sash is also increased. Therefore, in terms of the blocking device, it is necessary to increase the size of the door sash and increase the setting of the restraining force of the restricting member with respect to the engaging member. As above As described above, in the blocking device in which the restricting member is constituted by the leaf spring, the magnitude of the restraining force can be adjusted by changing the thickness and the plate width. However, when forming a plurality of leaf springs having different plate thicknesses, it is necessary to prepare a plurality of steel plates having different plate thicknesses, resulting in complicated management or an increase in manufacturing cost, etc., which is impractical. Further, in terms of the restricting member, it is necessary to restrict the movement by abutting against the end surface of the engaging member. Therefore, reducing the width of the board also has a limit on the size, which becomes a limitation when adjusting the binding force.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a blocking device capable of arbitrarily adjusting a restraining force for restricting movement of a fastening member without causing complicated management or an increase in manufacturing cost. Doors and windows.

In order to achieve the above object, the barrier device of the present invention includes a restricting arm interposed between a frame member interposed between the frame of the opening frame and a frame member that is openably and closably disposed with respect to the opening frame, the blocking device being transmitted through the base end The support arm supports the one of the frame member and the frame member, and the other of the frame member and the frame member is provided with a buckle slidably supported at one end of the restricting arm a guiding member of the guiding groove of the engaging member, wherein the guiding member is provided with a restricting member that is engaged with the engaging member when the door sash is opened to a predetermined limit position with respect to the opening frame, The restriction of the movement of the fastening member relative to the guiding member is formed by overlapping the first leaf spring and the second leaf spring with each other, and the first leaf spring is passed through the fastening member Fastener, the first mentioned above The leaf spring and the second leaf spring have a fixing portion fixed to the guiding member and a restricting portion for restricting movement of the engaging member, and the restricting portion of the second leaf spring is configured to be opposite to the guiding groove The width dimension of the direction in which the extending directions are orthogonal is smaller than the narrow portion of the first leaf spring.

Furthermore, in the above-described barrier device, the second leaf spring is configured to form the narrow portion by forming a notch portion in a central portion of the restricting portion.

Further, in the above-described barrier device, the first leaf spring has a first abutting portion abutting against a back surface of the guiding member, and the second leaf spring has a first leaf spring The abutting portion abuts the second abutting portion.

Furthermore, in the above-described barrier device, the first leaf spring and the second leaf spring are respectively formed of metal.

Further, the door and window according to the present invention is characterized in that the blocking device according to any one of the above is disposed between the frame member of the opening frame and the frame member of the door sash.

According to the present invention, since the restricting member is formed by laminating the second leaf spring having the narrow portion with respect to the first leaf spring, the narrow portion of the second leaf spring can be formed into an arbitrary width to be adjusted and fastened. The constraints of the components, without the doubts that lead to complex management or increased manufacturing costs.

10‧‧‧door sash

11‧‧‧Longitudinal frame members

11a‧‧‧ appearance

20‧‧‧Open frame

21‧‧‧Longitudinal frame members

21a‧‧‧Abutment of the fin

22‧‧‧ Close material

30‧‧‧Blocking device

40‧‧‧Restricted components

40A, 40B‧‧‧ leaf spring

40Aa, 40Ba‧‧‧ fixed department

40Ab, 40Bb‧‧‧ segment

40Ac, 40Bc‧‧‧Restrictions

40Ad, 40Bd‧‧‧ datum

40Ae, 40Be‧‧‧ threaded through hole

40Af, 40Bf‧‧‧ ridgeline

40Ag, 40Bg‧‧‧ front end

41B‧‧‧Incision Department

42‧‧‧Spring retaining thread

130‧‧‧Restricted arm

130a‧‧‧ inserted through hole

131‧‧‧ buckle pin (fastening member)

131a‧‧‧Axis

131b‧‧‧ head

132‧‧‧Base plate

132a‧‧‧ Pin fitting hole

133‧‧‧arm restraint components

133a‧‧‧ Constraint

133b‧‧‧Intervalparts

134‧‧‧Installation pin

134a‧‧‧ head

135‧‧‧ Arm spring

136‧‧‧ spacer components

230‧‧‧Guide members

231‧‧‧Guide box

231a‧‧‧ front wall

231a1‧‧‧Back

231b‧‧‧ Side wall

232‧‧ ‧ Pin Board Department

233‧‧‧Sliding plate

233a‧‧‧ recess

234‧‧‧ Guide groove

234a‧‧‧Restricted side end

234b‧‧‧Open side end

240‧‧‧Sliding members

241‧‧‧Locking guide groove

242‧‧‧Sliding guide groove

243‧‧‧ Containment ditch

244, 245‧‧‧ guidance thread

246‧‧‧ buckle lever

247‧‧‧Locking members

247a‧‧‧Locking piece

248‧‧‧Sliding operating members

248a‧‧‧Installation base

248b‧‧‧ grip installation

248c‧‧‧ operation grip

249‧‧ thread

250‧‧‧Restricted sales

Fig. 1 is a cross-sectional plan view showing a main part of a door and window to which a barrier device according to an embodiment of the present invention is applied.

Fig. 2 is a longitudinal sectional view of a main portion of the door and window shown in Fig. 1 as seen from the indoor side.

Fig. 3 is a view showing a state in which the blocking device applied to the door and window shown in Fig. 1 is in a state in which the engaging member of the restricting arm is detached from the guiding groove of the guiding member.

Fig. 4 is a view showing a state in which the blocking means applied to the door and window shown in Fig. 1 is attached, and the engaging member of the restricting arm is engaged with the restricting member of the guiding member.

Fig. 5 is a view showing a state in which the door and window of the door and window shown in Fig. 1 are blocked, and the door and window are closed.

Fig. 6 is an exploded perspective view showing the configuration of a blocking device applied to the door and window shown in Fig. 1.

Fig. 7-1 is a view showing a first leaf spring constituting a restricting member of the blocking device shown in Fig. 6, wherein (a) is a plan view and (b) is a side view.

Fig. 7-2 is a view showing a first leaf spring constituting a restricting member of the blocking device shown in Fig. 6, wherein (a) is a plan view and (b) is a side view.

Fig. 8 is a conceptual view showing a state in which the engaging member of the blocking device is engaged with the restricting member in the immediately preceding state from the indoor side in the door and window shown in Fig. 1.

Fig. 9 is a conceptual view showing a state in which the engaging member of the blocking device abuts against the ridge line of the restricting member from the indoor side in the door and window shown in Fig. 1.

Fig. 10 is a conceptual view showing a state in which the engaging member of the blocking device is engaged with the restricting member from the indoor side in the door and window shown in Fig. 1.

Hereinafter, preferred embodiments of the barrier device and the door and window of the present invention will be described in detail with reference to the accompanying drawings.

Figs. 1 and 2 are cross-sectional plan views showing a front portion of a door and a door of a barrier device to which the embodiment of the present invention is applied. In the same manner as the conventional door and window, the door and window exemplified here is provided with a hinged window (not shown) on the left side in Fig. 1 . That is, in the door and window, the door sash 10 is supported by the opening frame 20 so as to be openable and closable in the direction of the arrow A in FIG. In the vertical frame member 21 of the opening frame 20, the abutting fin portion 21a is provided so as to protrude from the depth surface to the inner circumferential side, and the fastening material 22 is provided at the protruding end portion of the abutting fin portion 21a. The abutting fin portion 21a abuts against the design surface 11a opposed to the inside of the vertical frame member 11 through the tight member 22 when the door sash 10 is closed, thereby ensuring a desired watertightness between the opening frame 20 and the door sash 10. Sexual and airtight. Between the longitudinal frame member 21 of the opening frame 20 and the longitudinal frame member 11 of the door sash 10, a blocking device 30 is provided. The blocking device 30 is configured to restrict the opening range of the door sash 10 with respect to the opening frame 20, and is configured to include the restriction arm 130 and the guide member 230 as shown in FIGS. 3 and 6.

The restraining arm 130 is an elongated thin plate member formed of metal and has a substantially uniform width throughout the entire length. A fastening pin (fastening member) 131 is provided at an end portion of the restriction arm 130, and a base plate 132 is coupled to the proximal end portion. The engaging pin 131 has a cylindrical shaft portion 131a and a large-diameter head portion 131b provided at an end portion of the shaft portion 131a. The fastening pin 131 is attached to the restriction arm 130 through the base end portion of the shaft portion 131a, and One of the side surfaces of the restricting arm 130 protrudes in a substantially right angle direction. The base plate 132 is a rectangular flat member formed of metal, the short side of which is longer than the width of the restriction arm 130, and the long side has a length of about 1/3 of the restriction arm 130. In the base plate 132, a pin engagement hole 132a is provided at one end, and an arm restraining member 133 is provided at the other end.

The pin engagement hole 132a is fitted with an opening that rotatably supports the restriction arm 130 on the mounting pin 134 of the base plate 132. In other words, the restricting arm 130 is inserted into the insertion hole 130a provided in the proximal end portion while the other surface is opposed to the base plate 132, and the mounting pin 134 is engaged with the pin engaging hole 132a. The axis of the pin 134 is centered and rotatably supported on the base plate 132. As seen from Fig. 6, an arm spring 135 is disposed between the head 134a of the mounting pin 134 and the restricting arm 130. The arm spring 135 causes the restriction arm 130 to constantly press against the surface of the base plate 132 with respect to the mounting pin 134.

The arm restraining member 133 is formed by integrally forming a restraining piece 133a having a substantially trapezoidal outer shape and a spacer portion 133b provided at an edge portion of the long side of the restraining piece 133a. The arm restraining member 133 is attached to the base plate 132 through the spacer portion 133b while maintaining a gap between the restraining piece 133a and the base plate 132. As shown in FIG. 3, when the restriction arm 130 is disposed along the long side of the base plate 132, the arm restraining member 133 can accommodate the restriction arm 130 between the arm restraint member 133 and the base plate 132.

The restriction arm 130 configured as described above is attached to the vertical frame member 11 through the base plate 132 in a state where the arm restraining member 133 is located on the outdoor side as shown in FIGS. 1 and 3 . The depth of the face. A spacer member 136 having a desired thickness is interposed between the base plate 132 and the longitudinal surface of the vertical frame member 11. As is also understood from Fig. 3, in the normal state, the restriction arm 130 is suspended from the attachment pin 134, and the intermediate portion of the restriction arm 130 is accommodated between the base plate 132 and the arm restraining member 133.

On the other hand, the guide member 230 of the blocking device 30 has a guide box portion 231, a pin plate portion 232, and a slide plate portion 233 as shown in FIGS. 3 and 6. The guide box portion 231, the pin plate portion 232, and the slide plate portion 233 are integrally molded by molding a thin metal plate. The guide box portion 231 is formed in a box shape, and has a rectangular front wall 231a and four side walls 231b which are bent at substantially right angles from the periphery of the front wall 231a in the same direction. The pin plate portion 232 and the slide plate portion 233 are bent in a plate-like portion that is bent at a substantially right angle from the two side wall 231b constituting the short side of the guide box portion 231 toward each other. The pin plate portion 232 has a length shorter than the front face wall 231a of the guide box portion 231, and the slide plate portion 233 is configured to have substantially the same length as the front wall 231a. A guide groove 234 is provided in the guide member 230, and a slide member 240 is disposed on the slide plate portion 233.

The guide groove 234 is formed as a slit of the front wall 231a and extends in a straight line along the long side. The end portion of the guide groove 234 close to the pin plate portion 232 (hereinafter referred to as "restricted side end portion 234a") is formed at the front end wall 231a. An end portion (hereinafter referred to as "open side end portion 234b") close to the guide groove 234 of the slide plate portion 233 is formed to a position reaching the slide plate portion 233 by the side wall 231b. The guiding groove 234 is configured to be provided The width of the head portion 131b of the fastening pin 131 of the restriction arm 130 is inserted.

The sliding member 240 is a thick plate-shaped member formed of a resin, and is configured to have a larger width than the sliding plate portion 233 of the guiding member 230. The sliding member 240 is provided with a locking guide groove 241, a sliding guide groove 242, and a receiving groove 243. The locking guide groove 241 and the sliding guide groove 242 are formed with long holes of the same length along the longitudinal direction of the sliding member 240, and are disposed at two different positions from each other. Specifically, in the base end portion of the sliding member 240, a locking guide groove 241 is provided on a center line that bisects the short side. The slide guide groove 242 is provided at a position deviated from the center line which halved the short side in the front end side of the lock guide groove 241. The accommodation groove 243 is a groove-shaped slit that opens toward the front end of the sliding member 240 and has the same width as the guide groove 234 of the guide box portion 231. The receiving groove 243 is formed at a position on the extension of the locking guide groove 241 along the longitudinal direction of the sliding member 240.

The sliding member 240 is in a state in which the receiving groove 243 is formed on the extension of the guiding groove 234 of the guiding member 230, and the guiding threads 244 and 245 are respectively screwed through the locking guiding groove 241 and the sliding guiding groove 242. It is fitted to the slide plate portion 233, thereby being attached to the slide plate portion 233. The sliding member 240 attached to the sliding plate portion 233 by the guiding threads 244, 245 is slidable in the longitudinal direction of the sliding member 240 along the range of the locking guiding groove 241 and the sliding guiding groove 242. When the slide member 240 is slid to a position closer to the guide box portion 231 (hereinafter referred to as a "lock position"), as shown in FIG. 4, the accommodation groove 243 is in a state of being continuous with the guide groove 234. That is, when the sliding member 240 is disposed in the locked position, the groove is actually guided. Both ends of 234 are in a state of being locked. On the other hand, when the slide member 240 is slid to a position farther away from the guide box portion 231 (hereinafter referred to as "open position"), as shown in FIG. 3, the guide groove 234 at the guide member 230 is provided. A gap is formed between the receiving groove 243 of the sliding member 240, and the end portion of the guiding groove 234 and the end portion of the receiving groove 243 are opened. The gap between the side wall 231b of the guide box portion 231 and the front end portion of the sliding member 240 which is secured when the sliding member 240 is disposed at the open position is set to be larger than the outer diameter of the fastening pin 131.

Further, the sliding member 240 is provided with a fastening lever portion 246, a locking member 247, and a slide operation member 248. The engaging lever portion 246 is a cantilever-shaped elastic member that is built in the sliding member 24 by cutting the periphery. Although not shown in the drawings, a fastening protrusion that protrudes toward the slide plate portion 233 is provided at an end portion of the engagement lever portion 246. The engagement projections are respectively engaged with the concave portions 233a provided in the slide plate portion 233 when the slide member 240 is disposed at the lock position and the open position.

The locking member 247 is rotatably disposed in a cylindrical member adjacent to the locking guide groove 241. A locking piece 247a is provided at a portion of the outer peripheral surface of the locking member 247. The front end of the locking piece 247a is an arc-shaped protruding portion, and the locking member 247 is rotated to move to the locking position shown in FIG. 4 and the non-locking position shown in FIG. When the lock member 247 is disposed at the lock position, as shown in FIG. 4, the protruding end portion of the lock piece 247a protrudes from the lock guide groove 241. Therefore, in the locking position, the locking piece 247a of the locking member 247 is abutted against the guiding snail that is screwed with the sliding plate portion 233 through the locking guiding groove 241. The rib 244 prevents the sliding member 240 from sliding relative to the sliding plate portion 233. Thereby, it is possible to prevent the sliding member 240 disposed in the locked position or the open position from inadvertently sliding. On the other hand, when the lock member 247 is disposed at the non-locking position, as shown in FIG. 3, since the lock piece 247a is retracted from the lock guide groove 241, the slide member 240 can be slid relative to the slide plate portion 233. .

The sliding operation member 248 includes: a mounting base portion 248a extending along the surface of the sliding member 240; and a grip mounting portion 248b bent toward a substantially right angle in a direction away from the surface of the sliding member 240 at one side edge of the sliding member 240; And an operation grip 248c attached to an end of the grip mounting portion 248b. The sliding operation member 248 is screwed to the sliding member 240 through the mounting base 248a, thereby being fixed to the surface of the sliding member 240.

Further, in the guide member 230, a restricting member 40 is provided on the back surface of the front wall 231a of the guide box portion 231 facing the slide plate portion 233. The restricting member 40 is engaged with the engaging pin 131 when the engaging pin 131 is disposed at the regulating side end portion 234a of the guiding groove 234 to restrict the movement of the engaging pin 131 relative to the guiding member 230 toward the open side end portion 234b. . In the present embodiment, as shown in FIG. 6, FIG. 7-1, and FIG. 7-2, the regulating member 40 which is formed by superposing the two leaf springs 40A and 40B on each other is applied. The leaf springs 40A and 40B are each formed by bending a thin metal member made of metal, and are configured to have substantially the same shape.

Specifically, it has a fixing portion 40Aa, 40Ba at the base end portion, and has a segment portion 40Ab, 40Bb and a restriction portion at the intermediate portion. The 40Ac and 40Bc forms the leaf springs 40A and 40B, respectively. The fixing portions 40Aa and 40Ba are attached to the back surface 231a1 of the front wall 231a in the upper reference planes 40Ad and 40Bd in FIGS. 7-1(b) and 7-2(b), and are formed in a flat shape. . Screw insertion holes 40Ae and 40Be are formed in the respective fixing portions 40Aa and 40Ba. The segment portions 40Ab and 40Bb are bent at a substantially right angle from the fixing portions 40Aa and 40Ba toward the lower side in the drawing, and then bent at a substantially right angle from the direction in which the fixing portions 40Aa and 40Ba are apart from each other. The length of the segment portions 40Ab and 40Bb is formed to be sized to accommodate the head portion 131b of the fastening pin 131. The restricting portions 40Ac and 40Bc are gradually curved toward the upper side in the drawing as they are separated from the segment portions 40Ab and 40Bb, and are gradually inclined downward toward the lower side in the drawing as they move away from the segment portions 40Ab and 40Bb. The regulating portions 40Ac and 40Bc are formed with ridge lines 40Af and 40Bf which are orthogonal to the extending direction of the leaf springs 40A and 40B and which are convex portions in the upper direction in the drawing. As shown in FIG. 2, the distance from the reference faces 40Ad and 40Bd to the segment portions 40Ab and 40Bb is set to be smaller than the side wall 231b of the guide case portion 231. On the other hand, the distance from the reference faces 40Ad and 40Bd to the front end portions 40Ag and 40Bg of the restricting portions 40Ac and 40Bc is set to be slightly larger than the side wall 231b of the guide case portion 231.

As shown in FIGS. 7-1 and 7-2, the difference between the two leaf springs 40A and 40B is that the first leaf spring 40A is substantially uniform throughout the entire length of the back surface 231a1 of the side wall 231b. In contrast, the second leaf spring 40B laminated on the first leaf spring 40A has a cutout portion 41B in a portion extending from the segment portion 40Bb to the regulating portion 40Bc. The cutout portion 41B is formed to have a width of approximately 2/3 of the full width. that is, The step portion 40Bb and the restricting portion 40Bc (narrow portion) of the second leaf spring 40B have a width of substantially 1/6 of the full width only on both sides of the slit portion 41B. Further, the above dimensions are merely for the purpose of illustration and are not intended to limit the invention.

The restricting member 40 which is formed by laminating the leaf springs 40A and 40B is a first leaf spring in a posture in which the front end faces the open side end portion 234b of the guiding groove 234 as shown in Figs. 2 and 6 . The reference surface 40Ad of 40A abuts against the back surface 231a1 of the front wall 231a, and from this state, the spring holding screw 42 is screwed to the front wall 231a through the respective screw insertion holes 40Ae, 40Be, thereby being attached to the guiding member 230. The restricting member 40 attached by the spring retaining screw 42 is in a cantilever state in which the distal end portions 40Ag and 40Bg are free ends, and as shown in Fig. 3, a portion covering the guide groove 234 is provided. Further, the ridgelines 40Af, 40Bf formed in the restricting portions 40Ac, 40Bc of the restricting member 40 are orthogonal to the extending direction of the guiding groove 234, and the ridgeline 40Af of the first leaf spring 40A is crimped to the back surface 231a1 of the front wall 231a. status.

As shown in FIG. 1 and FIG. 3 to FIG. 5, the guide member 230 having the above-described configuration is provided with the pin plate portion 232 as an upper portion, and passes through the pin plate portion 232 in a state where the guide groove 234 is in the vertical direction. The slide plate portion 233 is attached to the longitudinal surface of the vertical frame member 21.

The place where the guide member 230 is mounted is as shown in Fig. 5. When the door sash 10 is closed, the fastening pin 131 of the restriction arm 130 that is suspended from the base plate 132 is more than the side wall 231b located below the guide box portion 231. Lower and above the front end of the sliding member 240 disposed in the open position Height position. Further, the left and right positions are set such that the guide groove 234 of the guide member 230 is opened vertically above the fastening pin 131.

In this state, the slide operation member 248 provided on the slide member 240 is disposed so as to protrude toward the inner peripheral side of the open frame 20 along the abutting fin portion 21a of the vertical frame member 21, and the operation grip 248 is overtaken. The position of the fin portion 21a faces the room. Therefore, even when the door sash 10 is closed, the operation grip 248c can be operated from the indoor side, and as long as the lock member 247 is disposed in the non-locking position, the slide member 240 can be made relative to the vertical frame. The member 21 slides up and down. Further, a restriction pin 250 is attached to the upper corner portion of the indoor side of the pin plate portion 232. The restriction pin 250 is for preventing the restriction arm 130 from rotating toward the indoor side when the door sash 10 is closed.

Further, the restriction member 40 provided in the guide member 230 sets the distance from the reference faces 40Ad, 40Bd to the front end portions 40Ag, 40Bg of the restriction portions 40Ac, 40Bc to be slightly larger than the side wall 231b of the guide case portion 231, Therefore, the front end portions 40Ag and 40Bg of the restricting portions 40Ac and 40Bc are pressed against the longitudinal surface of the vertical frame member 21.

Now, in a state where the door sash 10 is closed, the operation grip 248c is operated downward from the state shown in Fig. 5, and when the slide member 240 is disposed in the open position, the guide groove 234 is formed at the guide member 230. A gap is formed between the receiving groove 243 of the sliding member 240, and the end portion of the guiding groove 234 and the end portion of the receiving groove 243 are opened. Therefore, when the door sash 10 is opened from this state, as shown in FIG. 3, the fastening pin 131 of the restriction arm 130 passes through the guide member 230 as the door sash 10 moves. The gap between the lead portion 231 and the sliding member 240 moves toward the outdoor side. In this state, since the door sash 10 is not subjected to any restriction, the door sash 10 can be opened to the fully open position.

On the other hand, in the state shown in FIG. 5, that is, in a state where the slide member 240 is disposed at the lock position, the engagement pin 131 of the restriction arm 130 is located inside the accommodation groove 243 provided in the slide member 240. And restricts the state of movement in the direction of appearance. Therefore, when the door sash 10 is opened from this state, the attachment pin 134 of the restriction arm 130 moves toward the outdoor side together with the door sash 10, but the engagement pin 131 does not move in the outward direction. As a result, as shown in FIG. 4, when the door sash 10 is moved in the opening direction, the restricting arm 130 is rotated about the mounting pin 134, and the engaging pin 131 is gradually moved along the receiving groove 243 and the guiding groove 234. Move above. When the fastening pin 131 reaches the restriction side end portion 234a of the guide groove 234, the rotation of the restriction arm 130 is prevented, so that the movement of the door sash 10 in the opening direction is also stopped, and the door sash 10 is formed with respect to the opening frame 20. Half open state.

Here, as described above, the restriction member 40 is disposed at the restriction side end portion 234a of the guide groove 234 of the guide member 230. Therefore, as shown in FIGS. 8 to 10, the engagement pin 131 of the restriction arm 130 is such that the restriction portion 40Ac, 40Bc of the restriction member 40 is appropriately formed in the process of the guide groove 234 reaching the restriction side end portion 234a. The deformation is made to pass therethrough, and the end face is engaged with the segment portion 40Ab. Therefore, in order to move the engagement pin 131 of the restriction arm 130 toward the open side end portion 234b of the guide groove 234, it is necessary to have a force for deforming the restriction portions 40Ac, 40Bc of the restriction member 40 while passing therethrough. Therefore, the door sash 10 that is in a half-open state is limited by the member The restriction portions 40Ac and 40Bc of the 40 are subjected to a large restraining force, and the open state can be maintained even if the wind is blown, for example, and the indoor ventilation can be continued.

In particular, the restricting member 40 of the present embodiment is configured by stacking the second leaf spring 40B on the first leaf spring 40A. Therefore, in order to allow the engaging pin 131 to reach the open end portion 234b of the guiding groove 234 through the restricting portions 40Ac and 40Bc, it is necessary to deform the restricting portion 40Ac of the first leaf spring 40A and the restricting portion 40Bc of the second leaf spring 40B. And the restraining force of the fastening pin 131 can be set to be large. Therefore, when the door and window provided with the above-described blocking device 30 is placed on the high floor of the building having a large wind load, the situation in which the door sash 10 is accidentally closed can be prevented. Further, since the first leaf spring 40A and the second leaf spring 40B are formed by metal, there is no doubt that the durability is caused.

Further, since the restricting member 40 is in contact with the engaging pin 131 through the first leaf spring 40A, the width of the second leaf spring 40B can be changed without any restriction. Therefore, when the restraining force of the engaging pin 131 is set to be smaller, the size of the notch portion 41B is increased, and the width of the segment portion 40Bb and the restricting portion 40Bc of the second leaf spring 40B is further reduced. correspond. Conversely, when the restraining force of the engaging pin 131 is set to be large, the size of the notch portion 41B can be reduced. In such a case, since it is not necessary to change the plate thickness and the plate width of the first leaf spring 40A, and it is not necessary to change the plate thickness of the second leaf spring 40B, it is not necessary to prepare a plurality of steel plates having different plate thicknesses without causing The complexity of management or the increase in manufacturing costs.

Furthermore, in the above embodiment, the window is exemplified, However, the present invention is not limited to the case of pulling the window, and may be applied to other windows as long as it is a sliding window or a double-window window or the like which is opened and closed with respect to the opening frame 20.

Further, in the above embodiment, the restriction arm 130 is disposed in the frame member of the door sash 10, and the guide member 230 is disposed on the frame member of the opening frame 20. However, restrictions may be imposed in the opposite aspect. The arm 130 and the guiding member 230.

Further, in the above-described embodiment, the notch portion 41B is provided in the central portion of the second leaf spring 40B. However, the present invention is not limited thereto, and may be a width dimension in a direction orthogonal to the extending direction of the guiding groove 234. The narrow portion which is smaller than the first leaf spring 40A may be provided in the second leaf spring 40B. That is, the narrow portion may be formed by forming the cutout portion 41B on both side portions of the second leaf spring 40B.

Furthermore, although the fastening arm 131 is provided with the fastening pin 131, the fastening member does not have to be a pin-shaped member, and it is of course possible to buckle the restriction member when the door sash is opened to a predetermined limit position with respect to the opening frame. Can also be other shapes.

30‧‧‧Blocking device

40‧‧‧Restricted components

40A, 40B‧‧‧ leaf spring

40Aa, 40Ba‧‧‧ fixed department

40Ab, 40Bb‧‧‧ segment

40Ac, 40Bc‧‧‧Restrictions

40Af, 40Bf‧‧‧ ridgeline

40Ag, 40Bg‧‧‧ front end

41B‧‧‧Incision Department

42‧‧‧Spring retaining thread

130‧‧‧Restricted arm

130a‧‧‧ inserted through hole

131‧‧‧ buckle pin (fastening member)

131a‧‧‧Axis

131b‧‧‧ head

132‧‧‧Base plate

132a‧‧‧ Pin fitting hole

133‧‧‧arm restraint components

133a‧‧‧ Constraint

133b‧‧‧Intervalparts

134‧‧‧Installation pin

134a‧‧‧ head

135‧‧‧ Arm spring

230‧‧‧Guide members

231‧‧‧Guide box

231a‧‧‧ front wall

231b‧‧‧ Side wall

232‧‧ ‧ Pin Board Department

233‧‧‧Sliding plate

233a‧‧‧ recess

234‧‧‧ Guide groove

234a‧‧‧Restricted side end

234b‧‧‧Open side end

240‧‧‧Sliding members

241‧‧‧Locking guide groove

242‧‧‧Sliding guide groove

243‧‧‧ Containment ditch

244, 245‧‧‧ guidance thread

246‧‧‧ buckle lever

247‧‧‧Locking members

247a‧‧‧Locking piece

248‧‧‧Sliding operating members

248a‧‧‧Installation base

248c‧‧‧ operation grip

249‧‧ thread

250‧‧‧Restricted sales

Claims (5)

A blocking device having a restraining arm interposed between a frame member interposed between an open frame and a frame member arrangably openable and closable with respect to the opening frame, the blocking device transmitting the restraining arm through the base end portion a guiding groove having a fastening member slidably supported at one end of the restricting arm is disposed on one of the frame member and the frame member, and the other of the frame member and the frame member a guiding member, wherein the guiding member is provided with a restricting member that is engaged with the engaging member when the door sash is opened to a predetermined restricted position with respect to the opening frame, thereby restricting the engaging member The restricting member is configured by overlapping the first leaf spring and the second leaf spring with respect to the movement of the guiding member, and is fastened to the engaging member through the first leaf spring, the first plate The spring and the second leaf spring have a fixing portion fixed to the guiding member and a restricting portion for restricting movement of the engaging member, and the second leaf spring is limited Portion configured such that lines have a direction orthogonal to the extending direction of the guide groove of narrow width dimension than that of the web portion of the first small leaf spring. The blocking device according to claim 1, wherein the second leaf spring is formed by forming a notch portion in a central portion of the restricting portion. Forming the aforementioned narrow portion. The blocking device according to claim 1, wherein the first leaf spring has a first abutting portion abutting against a back surface of the guiding member, and the second leaf spring has the first The abutting portion of the leaf spring abuts the second abutting portion. The blocking device according to claim 1, wherein the first leaf spring and the second leaf spring are respectively formed of metal. A door and window is provided between the frame member of the open frame and the frame member of the door sash, in the blocking device according to any one of claims 1 to 4.