CN110056273B

CN110056273B - Door and window

Info

Publication number: CN110056273B
Application number: CN201811541366.4A
Authority: CN
Inventors: 岩佐一记; 荒木将
Original assignee: YKK AP Inc
Current assignee: YKK AP Inc
Priority date: 2018-01-19
Filing date: 2018-12-17
Publication date: 2021-12-10
Anticipated expiration: 2038-12-17
Also published as: CN110056273A; JP2019124093A; JP6942642B2

Abstract

The invention provides a door and window with a limiting mechanism which has excellent operability and is not easy to change with time. The limiting mechanism for limiting the opening angle of the door and window sash which is arranged on the frame and rotates comprises: a sliding member which is slidably provided on either one of the frame and the door sash; a stay having a stay body having one end supported by the slide member so as to be swingable, and a pin member provided at the other end of the stay body; and a base member provided on the other of the frame and the door sash, protruding in one direction in a state where the door sash is closed, and having a guide groove in which a pin member provided on the stay on the one side is engaged, the guide groove being used to guide the pin member while swinging the stay in accordance with rotation of the door sash, the slide member being movable to a restriction position restricting an opening angle and a restriction release position releasing restriction of the opening angle, the slide member being urged by a torsion spring to hold the restriction position.

Description

Door and window

Technical Field

The present invention relates to a door/window including door sashes that are provided on a frame and opened and closed by rotation, and a restricting mechanism that restricts an opening angle of the door sashes.

Background

As a door window provided in a frame and including a door sash that opens and closes by pivoting and a restricting mechanism that restricts an opening angle of the door sash, for example, a door window including a restricting mechanism including: a door/window system is known in which a base member fixed to a frame provided with a door/window sash, a sliding member provided slidably on the base member, a stay having one end supported by the sliding member and swingably, and a base member fixed to the door/window sash, wherein a pin member provided on the tip end side of the swingable stay is slidably engaged with a guide groove provided on the base member (for example, see patent document 1).

According to the restricting mechanism for doors and windows, by sliding the sliding member to the upper end or the lower end of the movable range, it is possible to switch between the restricted state in which the opening angle of the door or window sash is restricted and the restriction released state in which the opening angle of the door or window sash is not restricted. The sliding member is provided with a protrusion, and the sliding member pressed toward the base member slides so that the protrusion slides with respect to the base member, and the protrusion engages with an engagement hole provided in the base member and spaced apart from the engagement hole in the vertical direction, thereby maintaining the state in which the sliding member is located at the upper end and the lower end of the movable range.

Patent document 1 Japanese patent laid-open No. 2009-138368

Disclosure of Invention

The existing door and window has the following problems: when the sliding member slides, a load due to friction is large when the protrusion provided on the sliding member moves slidably on the base member, so that the operability is poor, and iron powder is generated due to abrasion, and the backlash generated due to the change with time becomes large.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a door/window having a restricting mechanism which is excellent in operability and is less likely to change with time.

In order to achieve the object of the present invention, the door window of the present invention includes: frame, set up at above-mentioned frame and through the door and window fan that rotates and be opened and shut and the restriction mechanism of the angle of opening of restriction above-mentioned door and window fan, above-mentioned door and window's characterized in that, above-mentioned restriction mechanism includes: a sliding member slidably provided on one of the frame and the door sash; a stay having a stay body having one end supported by the slide member so as to be swingable; and a pin member provided at the other end of the stay bar body; and a base member provided on the other of the frame and the door sash, protruding toward the one side in a state where the door sash is closed, and having a guide groove in which the pin member provided on the stay located on the one side is engaged, the guide groove being used to guide the pin member while swinging the stay in accordance with rotation of the door sash, wherein the slide member is movable to a restricting position in which the pin member is located in the guide groove to restrict the opening angle and a restriction release position in which the pin member is located outside the guide groove to release restriction of the opening angle, the slide member being urged by a torsion spring to be held at the restricting position.

According to the above door/window, the sliding member is biased by the torsion spring and held at the restricted position, and thus, compared with a case where the sliding member is moved in a sliding manner, the load is reduced, the sliding is easy, and the change with time such as abrasion is not easily generated. Therefore, it is possible to provide a door/window provided with a restricting mechanism which is excellent in operability and is less likely to change with time. Further, by changing the spring characteristics of the torsion spring, the load at the time of operation can be easily changed, and thus setting can be easily performed to obtain a desired operation feeling.

The door window as described above is characterized in that the slide member is biased by the torsion spring and held at the restriction release position when the slide member is at the restriction release position.

According to the above door/window, the sliding member is held at the restricting position when it reaches the restricting position, and therefore, the state in which the sliding member is located at the restricting position and the restriction releasing position can be maintained regardless of which position the sliding member is slid to move to the restricting position and the restriction releasing position, without the user holding the sliding member.

The door window as described above, wherein the sliding member is biased toward the restricting position by the torsion spring when the sliding member is located at the restriction release position.

According to the door/window described above, since the slide member is biased toward the restriction position when the door/window is located at the restriction release position, the user can return the slide member to the restriction position by simply releasing the slide member after grasping the slide member and moving the slide member from the restriction position to the restriction release position. Therefore, when the user does not operate the sliding component, the door and window sash can be always in the state of limiting the opening angle.

The door/window as described above, wherein the one of the sliding members slidably provided with the stay locking portion that locks the stay in a state where the door sash is closed and the pin member is positioned outside the guide groove, and the base member has an engagement releasing portion that comes into contact with the stay to release the locked state when the door sash is opened in a state where the stay is locked.

According to the above-described door window, the door window is locked to the stay locking portion in a state where the door window is closed and the pin member is positioned outside the guide groove, whereby the door window can be opened without limitation of the opening angle without the user holding the slide member even when the slide member is biased to the limit position side. Further, since the locked stay is released from the locked state by contacting the lock release portion when the door sash is opened, the locked stay can return to the state in which the opening angle is restricted by opening the door sash.

The door and window as described above, characterized by comprising: and a guide portion that guides the pin member, which is moved by sliding the slide member from the restriction release position to the restriction position in a state where the door sash is opened, to the one side with respect to the base member when the door sash is closed.

According to the door and window, the guide portion is provided to guide the pin member in one direction with respect to the base member when the door and window sash is closed, and thereby the guide portion guides the pin member in one direction when the pin member and the base member interfere with each other. Therefore, as long as the door sash is closed, the pin member can be brought into the guide groove from one side of the base member to be in the restricted state.

The door and window as described above, characterized by comprising: and a slide restricting mechanism that restricts the slide member from moving to the restriction release position in a state where the pin member is positioned in the guide groove and the door sash is opened.

According to the above door/window, the slide restricting mechanism restricts the movement of the slide member to the restriction release position in the state where the door/window is opened, thereby preventing the door/window from being fully opened by operating the slide member from the outside in the state where the door/window is opened.

The door and window as described above, characterized in that, the above-mentioned frame has: a first opposing portion opposing the door sash in the depth direction in a state where the door sash is closed; a second opposing portion opposing the door sash in a plane direction of the door sash; and an airtight material provided at the first opposing portion, the sliding member including: a stay support portion that supports the stay between the second opposing portion and the second opposing portion; an operation grip portion arranged on an inner peripheral side of the frame and configured to perform a sliding operation; and an operation arm portion connecting the stay support portion and the operation grip portion, wherein the door sash and the operation arm portion are in contact with the airtight material in a state where the door sash is closed.

According to the above door/window, in the state where the door sash is closed, the operation grip portion disposed on the surface of the door sash facing the frame in the depth direction and the operation arm portion connected to the stay support portion provided between the door sash and the second facing portion come into contact with the airtight material provided at the first facing portion of the frame together with the door sash, so that a gap is less likely to be generated between the door sash side and the frame side. Therefore, the door and window can have high air tightness while having a limiting mechanism for limiting the opening angle of the door and window sash.

According to the present invention, it is possible to provide a door/window provided with a restricting mechanism that is excellent in operability and is less likely to change over time.

Drawings

Fig. 1 is a perspective view showing a door/window according to embodiment 1.

Fig. 2 is a perspective view for explaining the structure of the restricting mechanism according to embodiment 1.

Fig. 3 is an exploded perspective view for explaining the structure of a member on the frame side of the restricting mechanism according to embodiment 1.

Fig. 4 (a) is a diagram for explaining the urging direction of the torsion spring at the upper end position. Fig. 4 (B) is a diagram for explaining the urging direction of the torsion spring at the lower end position.

Fig. 5 (a) is a perspective view showing the restricting mechanism in a state where the opening angle is restricted. Fig. 5 (B) is a perspective view showing the restricting mechanism in a state where the opening angle is not restricted.

Fig. 6 (a) is a view of the slide restricting mechanism as viewed from the right vertical frame side. Fig. 6 (B) is a view of fig. 6 (a) viewed in the direction of arrow a.

Fig. 7 (a) is a diagram showing a positional relationship between the pin member and the base member when the slide member is opened with the slide member at the upper end position. Fig. 7 (B) is a view of the stay moved by the guide portion as viewed from the indoor side. Fig. 7 (C) is a view of the stay moved by the guide portion as viewed from the direction B of fig. 7 (a).

Fig. 8 (a) is a diagram for explaining the biasing direction of the torsion spring at the upper end position in embodiment 2. Fig. 8 (B) is a diagram for explaining the urging direction of the torsion spring at the lower end position in embodiment 2.

Fig. 9 is a perspective view for explaining the structure of the restricting mechanism according to embodiment 3.

Fig. 10 is a perspective view for explaining the operation of the restricting mechanism of embodiment 3.

Fig. 11 is a plan view for explaining an airtight structure between the right vertical frame and the front end frame.

Description of the symbols

1 door/window, 2 frame, 2c right vertical frame (vertical frame), 2d inner peripheral surface, 2e vertical frame extension, 3 door/window sash, 3c front end frame (vertical frame), 4 restricting mechanism, 5 air seal, 41c indoor extension, 41l lower end extension, 42 sliding member, 42a sliding member plane portion, 42b operation arm, 42c operation grip, 42d stay support portion, 42h locking piece, 43 stay body, 43a extension piece, 43b cut-up piece, 44 pin member, 45 stay, 45b restriction recess, 46 base member, 46a guide groove, 46e guide portion, 46f protrusion piece, 47 torsion spring, 48 conical coil spring, 48a conical coil spring, 49 torsion spring

Detailed Description

Hereinafter, a door and window according to embodiment 1 of the present invention will be described with reference to the drawings.

In the following description, the vertical direction when the door 1 attached to the outer periphery of the building is viewed from the indoor side is referred to as the vertical direction, the horizontal direction is referred to as the horizontal direction, and the depth direction is referred to as the depth direction. The directions of the respective parts of the door/window 1, or the respective members constituting the door/window 1 in a single body state, are specified with respect to the vertical direction, the horizontal direction, and the depth direction in the mounted state, and the description is made.

As shown in fig. 1, the door/window 1 of embodiment 1 includes: a frame 2 obtained by joining a horizontal frame 2a positioned at the upper and lower sides and

vertical frames

2b, 2c positioned at the left and right sides in a rectangular shape in a state of being mounted to a building or the like; a door/window sash 3 provided on the frame 2 and opened and closed by rotation; and a restricting mechanism 4 that restricts the opening angle of the door sash 3. The door window 1 is a door window 1 for a vertical sliding casement window, and one end portion side (left side in fig. 1) in the left-right direction of a door window sash 3 is rotatably supported by upper and lower lateral frames 2a, and is provided so as to be movable along the upper and lower lateral frames 2a, and the other end portion side (right side in fig. 1) extends to the outside of the room while the door window sash 3 is rotated.

In the door sash 3, for example, a lateral frame 3b located on the upper and lower sides of the glass 3a is joined to a vertical frame 3c located on the left and right sides to form a rectangle. In the door/window 1 shown in fig. 1, the upper and lower horizontal frames 3b are supported on the left side by the upper and lower horizontal frames 2a, and therefore the left vertical frame (not shown) is a hinge side frame, and the right vertical frame 3c is a front end frame. The restricting mechanism 4 for restricting the opening angle of the door sash 3 is provided between the front end frame 3c of the door sash 3 and the right vertical frame (hereinafter referred to as right vertical frame) 2 c.

As shown in fig. 1 to 3, the restricting mechanism 4 of embodiment 1 includes: a slide member 42 provided slidably on the outer peripheral surface of the front end frame 3c via the base member 41; a stay 45 having a stay body 43 having one end supported by the slide member 42 to be swingable; and a pin member 44 provided at the other end portion of the stay body 43; and a base member 46 provided on the inner peripheral surface 2d of the right vertical frame 2c and having a guide groove 46a for guiding the pin member 44. In order to make the structure easy to understand, the base member 46 shown in fig. 2 is oriented in a direction different from the direction after attachment with respect to the slide member 42, the stay 45, and the like. Here, the inner peripheral surface 2d of the right vertical frame 2c corresponds to a second facing portion which faces the window sash 3 in the planar direction of the window sash 3 in the closed state of the window sash 3.

The base member 41 provided in the front end frame 3c includes: a base member body portion 41a having a substantially rectangular plate shape; a base member extension portion 41b extending from an outdoor side edge of the base member main body portion 41a to the right direction, i.e., the right vertical frame 2c side; an indoor extension 41c extending from the front end of the base member extension 41b toward the indoor side; and a lower edge extension portion 41d extending from the lower edge of the base member body portion 41a toward the right vertical frame 2c side.

The base main body 41a is fixed to the outer peripheral surface of the front end frame 3c by fixing portions 41e formed by stepwise bending (stepped bending) upper and lower end portions, and a central portion between the upper and lower fixing portions 41e is formed as a base flat surface portion 41f which is disposed substantially parallel to the outer peripheral surface of the front end frame 3c with a space therebetween. The sliding member 42 is slidably attached to and disposed opposite to the base member planar portion 41 f.

The base member plane portion 41f is provided with 3

elongated holes

41g, 41h, and 41i which are vertically long, of which 1 is provided on the outdoor side of the upper portion of the base member plane portion 41f, and the other 2 elongated holes 41h and 41i are provided side by side at intervals in the depth direction on the lower portion of the base member plane portion 41 f. A hook pin 41k for hooking one end of a torsion spring 47 described later is riveted to the outdoor side of a long hole 41i provided on the outdoor side on the lower side.

The slide member 42 has: a slide member plane portion 42a facing the base member plane portion 41f of the base member 41; an operation wrist portion 42b connected to the indoor side of the sliding member plane portion 42a and provided substantially at right angles to the sliding member plane portion 42 a; and an operation grip portion 42c fitted to the distal end side of the operation wrist portion 42b so as to protrude toward the indoor side. In a state where the slide member 42 is attached to the front end frame 3c via the base member 41, the operation grip portion 42c is positioned on the indoor side of the front end frame 3c and is accommodated within the range of the front view width of the front end frame 3 c.

A stay support portion 42d, which is circular and slightly raised in a direction away from the base member 41, is formed at a central portion of the sliding member planar portion 42 a. A swing pin 42e serving as a swing center of the stay 45 is swaged to a center portion of the stay support portion 42d, and penetrates a through hole 45a provided at one end portion of the stay 45 to support the stay 45 to be swingable.

In the sliding member plane portion 42a, a slide pin 42f inserted through the

elongated holes

41g and 41h from the front end frame 3c side of the base member 41 is caulked to an outdoor side portion on the upper end side of the stay support portion 42d of the sliding member plane portion 42a and an indoor side portion on the lower end side of the stay support portion 42 d. Therefore, the slide member 42 can slide in the vertical direction within a range in which the slide pin 42f can move in the

elongated holes

41g, 41 h.

A locking pin 42g is swaged to an outdoor side portion of the lower end side of the stay support portion 42d of the sliding member planar portion 42a, one end of the torsion spring 47 is locked to a hook pin 41k provided on the base member 41, and the other end of the torsion spring 47 is rotatably locked to the locking pin 42 g.

As shown in fig. 4, the torsion spring 47 is attached between the hook pin 41k and the locking pin 42g in a state where the interval between 2 ends is narrowed and compressed. In a state where the slide member 42 is disposed such that the slide pin 42f is positioned on the upper end side of the

elongated holes

41g and 41h as shown in fig. 4 (a), the torsion spring 47 biases the slide member 42 upward because the locking pin 42g is positioned above the hook pin 41 k; in a state where the slide member 42 is disposed such that the slide pin 42f is positioned on the lower end side of the

elongated holes

41g and 41h as shown in fig. 4 (b), the torsion spring 47 biases the slide member 42 downward since the locking pin 42g is positioned below the hook pin 41 k. Thus, the slide member 42 is held by the torsion spring 47 in a state in which the slide pin 42f is positioned at the upper end and the lower end of the

elongated holes

41g and 41 h.

The stay 45 includes a stay body 43 made of a metal plate, and a pin member 44 crimped to the swing front end side of the stay body 43. An extension piece 43a extending toward the sliding member plane portion 42a is provided at the upper edge of the stay body 43. Further, the pin member 44 is configured to: the pin member 44 has a diameter-enlarged portion 44a formed by enlarging the diameter of the tip portion on the opposite side of the swaged end portion, and is prevented from coming off the guide groove 46a even if the pin member 44 moves to the left and right in a state where the pin member 44 is engaged with the guide groove 46 a.

The through hole 45a described above is provided on the upper side of the stay body 43 that serves as the center of oscillation of the stay 45, and the oscillation pin 42e that is riveted to the stay support portion 42d of the slide member 42 is supported with the conical coil spring 48 interposed between the stay body 43 and the stay support portion 42 d. That is, the sliding member plane portion 42a provided with the stay support portion 42d is spaced apart from the surface of the stay body 43 provided with the through hole 45a by the conical coil spring 48. Therefore, as shown in fig. 6 (b), even if the tilt angle of the stay 45 with respect to the swing pin 42e changes as the posture of the slide member 42 changes with the opening and closing of the door sash 3, the stay 45 is allowed to tilt by compressing the conical coil spring 48, and therefore, the deformation of the stay 45 can be suppressed.

The base member 46 provided on the inner peripheral surface 2d of the right vertical frame 2c so as to project toward the front end frame 3c of the door sash 3 is formed as follows: the fixing portion 46b is formed by bending the upper and lower end portions of a substantially rectangular plate material in a stepwise manner, and is fixed to the right vertical frame 2c, and a side plate portion 46c facing the front end frame 3c is provided at a central portion between the upper and lower fixing portions 46b at a distance from the right vertical frame 2c, and the upper and lower fixing portions 46b and the side plate portion 46c are connected by a connecting portion 46 d.

The side plate 46c and the lower coupling portion 46d are provided with a vertical guide groove 46a extending from the side plate 46c to the lower coupling portion 46 d. A guide portion 46e that guides the pin member 44 toward the front end frame 3c of the base member 46 is provided at the lower end portion of the outdoor side edge of the side plate portion 46 c. The guide portion 46e is connected to the side plate portion 46c and is inclined so as to increase the distance from the inner peripheral surface of the front end frame 3c toward the outdoor side. The position of the guide portion 46e in the up-down direction is set to be substantially the same as the following height: that is, the pin member 44 is located at a height at which the slide member 42 is disposed at the upper end of the slidable range.

In the restricting mechanism 4 according to embodiment 1, the base member 46 fixed to the right vertical frame 2c protrudes toward the front end frame 3c in the closed state of the door sash 3, and as shown in fig. 5a, when the slide member 42 provided on the front end frame 3c side is positioned on the upper side (hereinafter referred to simply as the upper end position) of the slidable range, the front end side of the pin member 44 positioned on the front end frame 3c side of the base member 46 is accommodated in the guide groove 46a of the base member 46, and the pin member 44 is provided on the stay body 43. When the sliding member 42 is positioned at the upper end position and the front end of the pin member 44 is positioned in the guide groove 46a, the pin member 44 is engaged with the pivot stay 45 of the door sash 3 while pivoting, and the pin member 44 is guided by the guide groove 46a to be opened outward. When the pin member 44 comes into contact with the upper end of the guide groove 46a and the stay 45 is not pivoted, the opening angle of the door sash 3 is restricted.

As shown in fig. 5b, if the slide member 42 provided on the front end frame 3c side is slid to the lower side (hereinafter, simply referred to as the lower end position) of the slidable range in the closed state of the door sash 3, the pin member 44 provided on the stay main body 43 and positioned on the front end frame 3c side is disposed outside the guide groove 46a by moving from the guide groove 46a of the lower connecting portion 46d to the lower side of the base member 46. When the slide member 42 is positioned at the lower end position, if the door sash 3 is opened outward, the stay 45 is supported by the front end frame 3c while maintaining a posture oriented substantially in the vertical direction. That is, the door sash 3 can be opened to the maximum extent without being restricted by the restricting mechanism 4.

When the slide member 42 is slid to the upper end position with the pin member 44 positioned in the guide groove 46a, the opening angle is restricted if the door sash 3 is opened, and therefore the upper end position of the slide member 42 corresponds to the restricting position; when the slide member 42 is slid to the lower end position and the pin member 44 is positioned outside the guide groove 46a, the opening angle is not restricted even if the door sash 3 is opened, and therefore the lower end position of the slide member 42 corresponds to the restriction release position. That is, the slide member 42 can be slid up and down to switch between a state in which the open angle is restricted and a state in which the restriction is released.

The slide member 42 is biased upward by the torsion spring 47 at the upper end position, and therefore can maintain the state in which the open angle of the door sash 3 is restricted, while biased downward by the torsion spring 47 at the lower end position, and therefore can maintain the state in which the restriction is released.

As described above, the door/window 1 according to embodiment 1 can maintain the state in which the slide member 42 is located at the restriction position and the restriction release position regardless of the position to which the slide member 42 is moved, and does not require the user to hold the slide member 42. At this time, since the slide member 42 is biased by the torsion spring 47 and held at the regulation position or the regulation release position, the load is reduced, the slide is easy, and the change with time such as abrasion is not easy to occur, as compared with the case where the slide member 42 is moved in a sliding manner. Therefore, the door/window 1 including the restricting mechanism 4 which is excellent in operability and is less likely to change with time can be provided. Further, since the load at the time of operation can be easily changed by changing the spring characteristics of the torsion spring 47, it is possible to easily set so as to obtain a desired operation feeling.

Further, the torsion spring 47 biases the slide member 42, and can be easily disposed in a narrow gap between the right vertical frame 2c and the front end frame 3c in the closed state of the door sash 3. Therefore, the space between the right vertical frame 2c and the front end frame 3c where the regulating mechanism 4 is provided can be further narrowed, and the area occupied by the glass 3a can be further secured.

As shown in fig. 6, when the sliding member 42 is at the upper end position and the door sash 3 is in the open state, the extension piece 43a provided at the upper end portion of the inclined stay 45 abuts against or approaches the upper end of the indoor extension portion 41c of the base member 41. Therefore, the sliding member 42 provided with the stay 45 cannot be slid downward in the open state of the door 3, and thus the sliding member 42 can be prevented from being operated from the outside to fully open the door 3 in the open state of the door 3. Here, the structure in which the extended piece 43a of the stay 45 is brought into contact with the indoor extended portion 41c of the base member 41 in the open state of the door sash 3 so as not to slide the slide member 42 downward corresponds to a slide restricting mechanism that restricts the slide member 42 from moving to the restriction release position.

Further, since the guide portion 46e is provided outside the chamber of the base member 46 at the height of the pin member 44 in the restricted state of the opening angle, if the door sash 3 is closed after the sliding member 42 is slid upward to become the restricted state in the restriction released state in which the sliding member 42 is located at the lower end position, the pin member 44 smoothly moves toward the front end frame 3c side along the inclined surface of the guide portion 46e and is accommodated in the guide groove 46a from the front end frame 3c side of the base member 46. Therefore, when the door sash 3 is closed, the pin member 44 can be restricted from entering the guide groove 46a from the front end frame 3c side of the base member 46.

In embodiment 1, an example in which the slide member 42 is biased upward by the torsion spring 47 at the upper end position and biased downward by the torsion spring 47 at the lower end position is described, but the present invention is not limited thereto. In the restricting mechanism 4 provided in the door/window 1 according to embodiment 2, for example, as shown in fig. 8, the position of the hooking pin 41k provided in the base member 41 for hooking the one end portion of the torsion spring 47 is changed to the lower position, and the torsion spring 49 having a spring characteristic different from that of the torsion spring 47 according to embodiment 1 is changed, so that the torsion spring 49 can be urged upward regardless of whether the slide member 42 is located at the upper end position or the upper end position.

In the restricting mechanism 4 according to embodiment 2, since the slide member 42 is always urged upward, that is, the open angle is always restricted, when the door sash 3 needs to be opened widely by releasing the restriction of the open angle, the user opens the door sash 3 by pressing the operation grip portion 42c with a hand while keeping the slide member 42 pushed downward. Then, when the operation grip 42c is released, the slide member 42 is pushed upward and moved to the upper end position. Namely, the opening angle is restricted. When the door sash 3 is closed in this state, the pin member 44 smoothly moves toward the front end frame 3c along the inclined surface of the guide portion 46e and is accommodated in the guide groove 46a, thereby maintaining the restricted state of the opening angle.

Therefore, in the restricting mechanism 4 according to embodiment 2, even when the slide member 42 is moved from the restricting position to the restriction release position, the slide member 42 can be returned to the restricting position by simply releasing the slide member 42. Further, according to the restricting mechanism 4 of embodiment 2, when the slide member 42 is biased upward by the torsion spring 49 regardless of the position at the upper end or the position at the lower end, the slide member 42 is always positioned at the upper end position in a state where the user does not push down the slide member 42, and therefore, the user can be prevented from inadvertently opening the door sash 3 from which the restriction of the opening angle is released to an excessively large extent.

The restricting mechanism 4 according to embodiment 3 is further provided with the following mechanism in addition to the restricting mechanism 4 according to embodiment 2: the slide member 42 is held at the lower end position, and the slide member 42 is moved to the upper end position when the door sash 3 is opened. More specifically, as shown in fig. 9, for example, the conical coil spring 48 in which the pivot pin 42e is inserted is interposed between the sliding member planar portion 42a of the sliding member 42 and the stay main body 43 in the above-described embodiment, and the conical coil spring 48a in which the end portion of the wire rod forming the conical coil spring 48 is extended is changed to a conical coil spring 48a, and the base member 41 is provided with the lower end extension portion 41l, and the lower end extension portion 41l extends from the lower side of the hook pin 41k toward the right vertical frame 2c side. In order to make the structure easy to understand, the base member 46 shown in fig. 9 is different from the slide member 42, the stay 45, and the like in the direction after mounting.

The conical coil spring 48a has one end portion thereof locked to a locking piece 42h extending from the sliding member planar portion 42a of the sliding member 42 toward the right vertical frame 2c and the other end portion thereof locked to a cut-and-raised piece 43b cut from the stay body 43 toward the sliding member planar portion 42a, thereby biasing the front end side of the stay 45 where the pin member 44 is provided toward the outside of the room. The stay 45 biased by the conical coil spring 48a abuts on the lower end extension portion 41 l.

In the stay 45, a restriction concave portion 45b is provided at a portion where the stay 45 biased by the conical coil spring 48a abuts against the lower end extension portion 41l in a state where the slide member 42 is located at the lower end position, and the upward movement is restricted by engaging with the lower end extension portion 41 l. Further, a projecting piece 46f projecting toward the front end frame 3c is provided below the lower coupling portion 46d of the base member 46. The projecting piece 46f is provided at the following positions: when the door sash 3 is opened with the slide member 42 positioned at the lower end position and the stay 45 biased by the conical coil spring 48a in contact with the lower end extension portion 41l, the pin member 44 is provided at a position in contact with the lower end portion of the stay 45 and outside the chamber of the guide groove 46a so as to be able to pass between the upper end of the projecting piece 46f and the lower connecting portion 46 d.

In the restricting mechanism 4 according to embodiment 3, the slide member 42 is biased upward by the torsion spring 49 in the closed state of the door sash 3. As shown in fig. 10 (a), when the sliding member 42 is slid to the lower end position, the stay 45 whose outer edge portion outside the chamber is brought into contact with the lower end extending portion 41l by the conical coil spring 48a moves downward, and the restricting recess 45b provided in the stay 45 engages with the lower end extending portion 41l to restrict the upward movement of the stay 45. At this time, the pin member 44 is positioned below the guide groove 46a to release the restriction of the open angle of the door sash 3, and even if the user releases the operation grip 42c, the stay 45 is locked in a state where the restriction of the open angle is released. Here, the lower end extension portion 41l corresponds to a stay locking portion that locks the stay 45 in a state where the pin member 44 is positioned outside the guide groove 46 a.

As shown in fig. 10 (b), when the door sash 3 is opened with the slide member 42 held at the lower end position, the pin member 44 of the stay 45 comes into contact with the projecting piece 46f, and the door sash 3 is further opened, the engagement between the restricting recess 45b of the stay 45 and the lower end extending portion 41l is disengaged, and the torsion spring 49 pushes the stay 45 upward together with the slide member 42. As shown in fig. 10 (c), the slide member 42 pushed upward by the torsion spring 49 is moved to the upper end position, and in a state where the stay 45 is urged by the conical coil spring 48a to be in contact with the lower end extension 41l, the pin member 44 is inserted between the upper end of the projecting piece 46f and the lower connecting portion 46d, and the door window 3 is fully opened without being restricted in the opening angle. Here, the projecting piece 46f corresponds to an engagement releasing portion that releases the engaged state by contacting the stay.

When the door sash 3 is closed, the pin member 44 in the restricted open angle state moves smoothly toward the front end frame 3c along the inclined surface of the guide portion 46e, and is accommodated in the guide groove 46a from the front end frame 3c side of the base member 46. In this state, when the door 3 is opened, the door 3 is opened with the opening angle thereof being limited.

In embodiment 3, even when the door sash 3 is opened in a state where the restriction of the opening angle is released, the operation grip portion 42c of the slide member 42 does not need to be pressed by a hand, and the door sash 3 in a state where the restriction of the opening angle is released can be returned to the state where the opening angle is restricted by directly closing the door sash. Therefore, the user only needs to operate the operation grip portion 42c when the user wants to release the restriction of the opening angle, and the user can be prevented from inadvertently opening the door sash 3 from which the restriction of the opening angle is released to an excessively large extent. Therefore, the door/window 1 having more excellent operability can be provided.

In the above embodiment, the example in which the slide member 42 and the stay 45 are provided on the door sash 3 side and the base member 46 is provided on the frame 2 side has been described, but the base member may be provided on the door sash side and the slide member and the stay may be provided on the frame side.

As in the above-described embodiment, when the slide member 42 and the stay 45 are provided on the door sash 3 side and the base member 46 is provided on the frame 2 side, the slide member 42 and the operation catch 42c are provided on the door sash 3 side as shown in fig. 11, and move together with the door sash 3 when the door sash 3 is opened or closed, whereby the operation catch 42c does not protrude toward the inner peripheral side of the frame 2. Therefore, when the door sash 3 is opened or closed, the user does not contact the operation grip portion 42c, and the operability is further improved.

Further, for example, when the slide member and the operation grip portion are provided on the frame side, since the slide member is attached to the frame, the air seal provided on the frame for sealing with the frame is compressed by the slide member, and a gap is formed between the operation arm portion of the slide member and the door sash, so that the air tightness is reduced. Therefore, when the slide member 42 is provided on the door sash 3 side as in the above-described embodiment, the air seal 5 provided in the vertical frame extension portion 2e extending toward the inner peripheral side of the right vertical frame 2c is in contact with the front end frame 3c and the operation arm portion 42b to prevent the flow of gas, and the airtightness between the right vertical frame 2c and the front end frame 3c and the operation arm portion 42b can be improved. Here, the vertical frame extension portion 2e corresponds to a first facing portion that faces the door sash 3 in the depth direction in the closed state of the door sash 3.

In the above embodiment, the window is a vertical sliding shaft casement window, but is not limited thereto, and any window may be used as long as it constitutes a window opened by pivoting, for example, a casement window, a horizontal sliding shaft casement window, an outward opening top-hung window, an outward opening bottom-hung window, and the like.

The above-described embodiments are intended to facilitate understanding of the present invention, and are not intended to be restrictive. It is needless to say that the present invention can be changed or modified without departing from the gist thereof, and the present invention includes equivalent technical means.

Claims

1. A door or window, comprising: a frame, a door and window sash which is arranged on the frame and is opened and closed through rotation, and a limiting mechanism for limiting the opening angle of the door and window sash,

the limiting mechanism includes:

a sliding member provided slidably on one of the frame and the door/window sash via a base member;

a stay having a stay body having one end supported by the sliding member so as to be swingable; the pin component is arranged at the other end of the stay bar body; and

a base member provided on the other of the frame and the door sash, protruding toward the one in a state where the door sash is closed, and having a guide groove in which the pin member provided to the stay located on the one is engaged, the guide groove guiding the pin member while swinging the stay in accordance with rotation of the door sash,

the slide member is movable to a restricting position where the pin member is positioned in the guide groove to restrict the opening angle and a restriction releasing position where the pin member is positioned outside the guide groove to release the restriction of the opening angle,

the slide member is urged by a torsion spring to be held at the restricting position,

the slide member is biased by the torsion spring and held at the restriction release position when the slide member is at the restriction release position,

a slide restricting mechanism that restricts the slide member from moving to the restriction release position in a state where the pin member is located in the guide groove and the door/window sash is opened,

an extension piece extending toward the sliding member is provided on the upper edge of the stay bar body,

the base member has:

a base member body portion having a rectangular plate shape;

a base member extension portion extending in a rightward direction from an edge of an outdoor side of the base member body portion;

an indoor extension portion extending from a front end of the base member extension portion toward an indoor side, abutting against the extension piece of the stay bar body when the slide member is located at an upper end position and the door and window sash is in an open state,

the slide restricting mechanism is configured to prevent the slide member from sliding to the restriction release position by bringing the extension piece of the stay body into contact with the indoor extension portion of the base member when the pin member is positioned in the guide groove and the door/window sash is in the open state.

2. The window and door of claim 1, comprising:

and a guide portion that guides the pin member, which has been moved by sliding the slide member from the restriction release position to the restriction position in a state where the door sash is opened, to the one direction with respect to the base member when the door sash is closed.

3. The window or door according to claim 1 or 2,

the frame has: a first facing portion that faces the door sash in a depth direction in a state where the door sash is closed; a second opposing portion opposing the door sash in a planar direction of the door sash; and an airtight member provided at the first facing portion,

the sliding member includes: a stay support portion that supports the stay between the second opposing portion and the second opposing portion; an operation grip portion arranged on an inner peripheral side of the frame and configured to perform a sliding operation; and an operation wrist portion connecting the stay support portion and the operation grip portion,

and under the state that the door and window sash is closed, the door and window sash and the operation wrist part are abutted against the airtight piece.