JP7045300B2 - Opening angle holding device and fittings - Google Patents

Description

The present invention relates to an opening angle holding device and fittings for holding an opening angle of a door body that can be opened and closed with respect to a frame body.

Conventionally, as an opening angle holding device, a rail fixed along a window stile in a shoji (door body) of a casement window, a slider slidably fitted to the rail, and an arm connecting the slider and the window opening side. It is equipped with a rod, a hook recess is provided at a predetermined position along the rail, and the slider is provided with a fitting that fits into the hook recess so that the angle of the window can be adjusted. The vessel is known (see Patent Document 1).
In this window angle adjuster, the fitting provided on the slider is fitted into the hook recess along the rail to maintain the opening angle of the window.

Jikkenhei 2-53473 Gazette

By the way, in the window angle adjuster described in Patent Document 1, the fitting provided on the slider does not fit with the hooking recess unless the hooking recess along the rail is in a predetermined position, so that the window can be held. The opening angle is limited to the opening angle corresponding to a predetermined position where the hooking recess is located along the rail.

An object of the present invention is to provide an opening angle holding device and fittings capable of holding a door body at a desired opening angle.

The opening angle holding device of the present invention is an opening angle holding device that holds the opening angle of the door body with respect to the frame body, and has a spiral rod that can be attached to one of the frame body and the door body, and the said. A slider that is movably engaged with the spiral rod along its axial direction, and is attached to the slider on one end side and can be attached to the other of the frame body and the door body on the other end side. A link arm, a rotating body fixed to the spiral rod, and an engaging body engaged with the rotating body are provided, and the spiral rod is configured to be rotatable as the slider moves. The engaging body is characterized in that it is movably configured to be movable between an engaging position that engages with the rotating body and a non-engaging position that does not engage with the rotating body.

The fitting of the present invention includes a door body that can be opened and closed with respect to the frame body, the above-mentioned opening angle holding device of the present invention attached to the frame body and the door body, and an operation device for moving the engaging body. It is characterized by having.

According to the present invention, it is possible to provide an opening angle holding device and fittings capable of holding a door body at a desired opening angle.

The perspective view which shows the outer casement window which concerns on embodiment of this invention. The perspective view which shows the opening angle holding device of the outer casement window which concerns on the said embodiment. The perspective view which shows unfolding the opening angle holding device of the outer casement window which concerns on the said embodiment. The explanatory view which shows the operation of the main part of the opening angle holding device of the outer casement window which concerns on the said embodiment. The plan view which shows the operation of the outer casement window which concerns on this embodiment. The explanatory view which shows the operation of the spiral rod of the opening angle holding device of the outer casement window which concerns on the said embodiment. The perspective view which shows the rotation stop unit which concerns on the 1st modification of this invention. The plan view which shows the rotation stop unit which concerns on the 2nd modification of this invention. The perspective view which shows the outer casement window which concerns on the 3rd modification of this invention. Explanatory drawing which shows the opening angle holding device of the outer casement window which concerns on 3rd modification from the lower side. The perspective view which shows the main part of the opening angle holding device of the outer casement window which concerns on the 3rd modification by unfolding. The explanatory view which shows the operation of the main part of the opening angle device of the outer casement window which concerns on the 3rd modification.

[Structure of this embodiment]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, the outer window 1 which is a fitting according to the present embodiment has a window frame 2 (frame body) installed at an opening of a building frame and a shoji screen 3 which can be opened and closed outdoors with respect to the window frame 2. The door body), the opening angle holding device 10 attached to the window frame 2 and the shoji 3, the latch device 50 for hooking the window frame 2 and the shoji 3, and the opening angle holding device 10 and the latch device 50 are interlocked with each other. It includes an operating device 60 to be operated and a thumb turn 70 which is a locking device.
The window frame 2 is configured by framework of an upper frame 21, a lower frame 22, and left and right vertical frames 23, and the shoji 3 is composed of an upper stile 31, a lower stile 32, left and right vertical stiles 33, a glass panel, and the like. It is constructed by assembling the face material 34 into a frame. The vertical frame 23 and the vertical frame 33 on the hanging side are connected to each other via a hinge.
In the following description, the left-right direction of the shoji 3 is the X-axis direction, the vertical direction of the shoji 3 is the Y-axis direction, and the expected direction of the shoji 3 is the Z-axis direction. These X, Y, and Z axis directions are orthogonal to each other.

As shown in FIGS. 2 and 3, the opening angle holding device 10 includes a slide base 11, a bearing 12 attached to the slide base 11, and rotating bodies 14 and 15 rotatably supported by a case body 451 described later. A spiral rod 16 having both ends attached to the rotating bodies 14 and 15, a slider 17 screwed to the spiral rod 16, and a link arm 19 having one end rotatably connected to the slider 17 via a shaft pin 18. It includes a rotation stop unit 40 having an engaging body 41 that can move from an engaged position to a non-engaging position with respect to the rotating body 14.
The slide base 11 is screwed to the upper stile 31. The other end of the link arm 19 is rotatably screwed to the upper frame 21 via a shaft pin 18 and a mounting plate 182.
The spiral rod 16 is arranged along the upper stile 31. The twisting pitch of the spiral rod 16 is equal pitch. The spiral rod 16 has a shape twisted around its axis 161 and has a flat plate portion 162 (FIG. 6) along the axial direction A which is not twisted at one end (end on the door end side). See).
The slider 17 is fitted to the slide base 11 so that it can move in the axial direction A of the spiral rod 16 and cannot rotate. The slider 17 is provided with a slit (not shown) through which the spiral rod 16 is inserted. When the slider 17 moves in the axial direction A, the portion of the spiral rod 16 located in the slit is pushed in the rotation direction R by the slider 17. It is driven to rotate while being driven. Further, in the state where the slit of the slider 17 is arranged on the flat plate portion 162 of the spiral rod 16, even if the slider 17 moves in the axial direction A, the flat plate portion 162 is not pushed in the rotation direction R by the slider 17. , The spiral rod 16 does not rotate. Therefore, the rotational position in the rotational direction R of the rotating body 14 on which the engaging teeth 141 described later are formed is maintained unchanged.
In the present embodiment, the shaft pins 18 at both ends of the link arm 19 are crimped, and a resin washer 181 is inserted through each shaft portion. Since the resin washer 181 is in pressure contact with the link arm 19, a frictional resistance force is generated when the link arm 19 rotates with respect to the slider 17 and the upper frame 21, and the frictional resistance force causes an opening / closing resistance force against the opening / closing movement of the shoji 3. (Shibumi) is given.
The rotation stop unit 40 engages with the above-mentioned engaging body 41, a spring member 42 as an elastic member that urges the engaging body 41 toward the rotating body 14 in the axial direction A, and a spring receiver 43 that receives the spring member 42. It includes a connecting shaft 44 in which the unit 41 and the spring receiving body 43 are connected so as to be close to each other and separated from each other, and a unit case 45 containing the engaging body 41, the spring member 42, the spring receiving body 43, and the connecting shaft 44.
The unit case 45 is composed of a case main body 451 and a case cover 452. The case body 451 is fixed to the slide base 11 and is configured to guide the engaging body 41 and the spring receiving body 43 in the axial direction A. The case cover 452 is screwed to the case body 451 and covers the upper surface side of the case body 451. The engaging body 41 has an engaging position (position shown in FIG. 4C) that engages with the rotating body 14 and a non-engaging position (position shown in FIG. 4A) that does not engage with the rotating body 14. It is arranged so as to be movable in the axial direction A. The spring receiving body 43 is arranged at a position separated from the rotating body 14 in the axial direction A than the engaging body 41, and the spring member 42 is arranged between the engaging body 41 and the spring receiving body 43. The spring member 42 elastically supports the engaging body 41 from the side opposite to the rotating body 14 side in the axial direction A.
In the above-mentioned opening angle holding device 10, the rotating body 14 and the engaging body 41 are arranged on the axis 161 of the spiral rod 16, respectively, and the rotating body 14 and the engaging body 41 are shown in FIGS. 4 (A) to 4 (A). As shown in C), engaging teeth 141 and 411 are formed as engaging portions protruding in the axial direction A so as to be able to engage (mesh) with each other. A plurality of engaging teeth 141 and 411 are provided along the circumferential direction of the rotating body 14 and the engaging body 41, and the protruding tip surfaces 142 and 412 are planes orthogonal to the axial direction A in the present embodiment. It is said to be a flat surface along. As shown in FIGS. 4A and 4B, the rotation position of the engaging tooth 411 of the engaging body 41 is set on the engaging tooth 141 of the rotating body 14 in the state where the slider 17 is arranged on the flat plate portion 162. On the other hand, the tip surfaces 142 and 412 are set at positions facing each other.

As shown in FIG. 1, the latch device 50 includes a latch case 51 and a latch member 52 attached to a vertical frame 33 on the door end side, and a latch receiver (not shown) attached to a vertical frame 23 on the door end side. It is equipped with. The latch member 52 is configured to be movable in a protruding position and an immersion position with respect to the latch case 51 by operating the operating device 60.
In the protruding state of the latch member 52, the shoji 3 is hooked to the window frame 2 by engaging with the latch receiver. Further, in the immersed state of the latch member 52, the engagement with the latch receiver is released, and the hook 3 is released from the window frame 2.
As shown in FIG. 1, the operation device 60 has an operation handle 61 attached to a vertical frame 33 on the door end side and causing a latch member 52 to appear and disappear by a rotation operation, and a vertical interlocking bar 62 connected to the operation handle 61. A corner drive 63 connected to the vertical interlocking bar 62, and a horizontal interlocking bar 64 connected to the corner drive 63 and the spring receiver 43 of the rotation stop unit 40 are provided. The vertical interlocking bar 62, the corner drive 63, and the horizontal interlocking bar 64 constitute an interlocking mechanism 65 in which the operation handle 61 is connected to the rotation stop unit 40.
The vertical interlocking bar 62 is attached to the vertical stile 33 on the door end side so as to be movable in the Y-axis direction, and the corner drive 63 is attached to the corner portion where the upper stile 31 and the vertical stile 33 on the door end side are continuous. The horizontal interlocking bar 64 is attached to the upper stile 31 so as to be movable in the X-axis direction. In this interlocking mechanism 65, when the operation handle 61 is rotated, the vertical interlocking bar 62 moves in the Y-axis direction in conjunction with this rotation operation, and this movement is X to the horizontal interlocking bar 64 via the corner drive 63. It is transmitted as an axial movement, and the engaging body 41 is moved in the axial direction A via the spring receiver 43 of the rotation stop unit 40.
The operation handle 61 is rotatably attached to the vertical stile 33 between the first position 611 and the second position 612 in the rotation direction thereof. In the state where the operation handle 61 is in the first position 611, the latch member 52 is arranged in the immersion position, and the engaging body 41 of the rotation stop unit 40 is arranged in the non-engaging position. Further, in the state where the operation handle 61 is in the second position 612, the latch member 52 is arranged in the protruding position, and the engaging body 41 is in a state of being movable toward the engaging position in which the rotating body 14 is engaged. To. The vertically interlocking bar 62 is formed with a lock receiving portion 73 formed of an engagement port with which a lock member described later of the thumb turn 70 is engaged.
As shown in FIG. 1, the thumb turn 70 is attached to a lock member (not shown) attached to the vertical frame 33 on the door end side, an operation knob 72 for operating the lock member to appear and disappear, and a vertical interlocking bar 62 as described above. It has a formed lock receiving portion 73. The lock receiving portion 73 is arranged at a position where the operation handle 61 can be engaged with the lock member with respect to the vertical interlocking bar 62 in a state where the operation handle 61 is at the second position 612. In this thumb turn 70, the lock member is projected by the operation of the operation knob 72 and engaged with the lock receiving portion 73 to restrict the movement of the vertically interlocking bar 62 in the Y-axis direction, and the operation handle 61 is set to the second position 612. Lock while still placed in. As a result, in the opening angle holding device 10, the opening angle holding state in which the engaging body 41 and the rotating body 14 are engaged is maintained. Further, the lock member is immersed by the operation of the operation knob 72 to release the engagement with the lock receiving portion 73, so that the vertically interlocking bar 62 can be moved in the Y-axis direction. As a result, in the opening angle holding device 10, the opening angle holding state can be released by operating the operation handle 61 from the second position 612 to the first position 611.

Hereinafter, the operation of the outer casement window 1 according to the present embodiment will be described.
First, an operation of changing the outer casement window 1 from the closed state to the openable / closable state will be described.
In the closed state of the outer case window 1, the operation knob 72 of the thumb turn 70 is operated to unlock the operation handle 61, and then the operation handle 61 is operated from the second position 612 to the first position 611, and this operation is performed. As a result, the latch device 50 releases the hooking of the shoji 3 to the window frame 2. At the same time, the rotation operation of the operation handle 61 from the second position 612 to the first position 611 is transmitted as a movement operation to the spring receiver 43 of the rotation stop unit 40 via the interlocking mechanism 65. The spring receiver 43 moves in the axial direction A away from the engaging body 41, and the engaging body 41 moves to the non-engaging position shown in FIG. 4A while being pulled by the connecting shaft 44, and from the rotating body 14. Separate. As a result, the shoji 3 can be opened and closed with respect to the window frame 2. When the shoji 3 is in the closed position shown in FIG. 5A with respect to the window frame 2, the slit portion 171 of the slider 17 is the flat plate portion 162 of the spiral rod 16 as shown in FIG. 6A. Is located in.
Next, the operation of holding the opening angle of the shoji 3 will be described.
When the shoji 3 is moved open to the outdoor side as shown in FIGS. 5 (B) and 5 (C) with respect to the window frame 2, the slider 17 of the opening angle holding device 10 is moved to the other end of the spiral rod 16 ( When the flat plate portion 162 is moved in the axial direction A toward the end portion on the hanging side) and the slit portion 171 moves to the position shown in FIG. 6 (C) via the position shown in FIG. 6 (B), the spiral rod 16 It hangs on the twisted part (screw part) of. When the slider 17 further moves in the axial direction A in this state, the spiral rod 16 is rotationally driven in the rotation direction R. By converting a part of the linear movement force of the slider 17 into the rotational force of the spiral rod 16 in this way, resistance to the open movement of the shoji 3 is given. Further, the link arm 19 rotates with respect to the upper frame 21 and the slider 17 due to the open movement of the shoji 3, generates a frictional resistance force with the resin washer 181 and imparts a resistance force to the opening / closing movement of the shoji 3. Due to these resistances, the shoji 3 moves open without becoming excessively fast while applying an appropriate resistance.
When the shoji 3 is placed in the open position with a desired opening angle, the operation handle 61 is rotated from the first position 611 to the second position 612, and this rotation operation is performed by the spring of the rotation stop unit 40 via the interlocking mechanism 65. It is transmitted to the receiver 43 as a movement operation. The spring receiver 43 moves in the axial direction A in a direction approaching the engaging body 41, and the engaging body 41 moves from the non-engaging position to the engaging position while being pushed by the spring member 42. As a result, the engaging teeth 411 of the engaging body 41 mesh with the engaging teeth 141 of the rotating body 14, and the rotation of the rotating body 14 and the spiral rod 16 to which it is fixed in the rotation direction R is stopped by the engaging body 41, and the slider. The movement of the axial direction A of 17 is also stopped. As a result, both the opening movement and the closing movement of the shoji 3 cannot be performed, and the opening angle of the shoji 3 with respect to the window frame 2 is maintained at a desired angle.
Here, the tip surface 412 of the engaging tooth 411 may hit the tip surface 142 of the engaging tooth 141, but the engaging teeth 141 and 411 are removed by removing the tip surfaces 142 and 412 by moving the shoji 3 slightly open and closed. You can mesh with each other. Further, even if the engaging body 41 moves closer to the rotating body 14 while hitting the tip surfaces 142 and 412, the spring member 42 elastically contracts, so that the engaging body 41 is not strongly pressed against the rotating body 14.
Further, in a state where the shoji 3 is between the closed position shown in FIG. 5 (A) and the minute opening position shown in FIG. 5 (B), the slit portion 171 of the slider 17 is shown in FIGS. 6 (A) and 6 (B). As shown, since it is located on the flat plate portion 162 of the spiral rod 16, the movement of the slider 17 in the axial direction A and the rotation of the spiral rod 16 are cut off. Therefore, even if the operation handle 61 is moved and the rotation of the rotating body 14 and the spiral rod 16 is stopped by the rotation stop unit 40, the slider 17 can move in the axial direction A by the length of the flat plate portion 162. be. Therefore, when the shoji 3 is between the closed position and the minute opening position, the opening angle of the shoji 3 is not held by the opening angle holding device 10.
Finally, an operation of releasing the opening angle holding state of the shoji 3 will be described.
The operation handle 61 is rotated from the second position 612 to the first position 611, the spring receiver 43 is separated from the rotating body 14 via the interlocking mechanism 65, and the engaged body 41 is moved from the engaged position to the non-engaged position. Then, the engaging teeth 141 and 411 are disengaged from each other so that the rotating body 14 and the spiral rod 16 can be rotated and the slider 17 can be moved in the axial direction A. As a result, the shoji 3 is released from the opening angle holding state and can be opened and closed.

[Effect of this embodiment]
(1) In the above-described embodiment, the rotation of the rotating body 14 and the spiral rod 16 is stopped by the moving operation of the engaging body 41 to stop the movement of the slider 17, so that the shoji 3 can be held at a desired opening angle. ..
(2) Since the rotating body 14 and the engaging body 41 have engaging teeth 141 and 411 protruding in the axial direction A and are arranged along the axis 161 of the spiral rod 16, for example, the engaging body 41 is a rotating body. Compared to the case where the spiral rod 16 is arranged away from the axis 161 so as to engage with the peripheral surface of 14, the fitting dimension in the direction intersecting the axis 161 of the spiral rod 16 (Y-axis direction or Z-axis direction). Can be made smaller. Therefore, the opening angle holding device 10 can be easily installed even if the expected dimension or the found dimension of the window frame 2 or the shoji 3 is small.
(3) The spiral rod 16 is formed with a flat plate portion 162 along the axial direction A, and the rotating body 14 is engaged at the rotational position of the spiral rod 16 in a state where the slider 17 is arranged on the flat plate portion 162. The teeth 141 are located facing the engaging teeth 411 of the engaging body 41. Therefore, in the state where the slider 17 is arranged on the flat plate portion 162, the spiral rod 16 does not rotate even if the slider 17 moves in the axial direction A along the flat plate portion 162, and the rotating body 14 and the engaging body 41 The state in which the engaging teeth 141 and 411 are positioned facing each other is maintained. Even if the engaging body 41 is moved from the non-engaging position to the engaging position in this state, the tip surfaces 142 and 412 of the engaging teeth 141 and 411 come into contact with each other and the engaging teeth 141 and 411 are engaged with each other. Therefore, the opening angle of the shoji 3 is not maintained. By forming the flat plate portion 162 on the spiral rod 16 in this way, it is possible to provide an angle region that does not maintain the opening angle of the shoji 3. This angle region can be adjusted by the position and length dimension of the flat plate portion 162 in the axial direction A. In the present embodiment, since the slider 17 is arranged on the flat plate portion 162 in a state where the door body is in the slightly opened position from the closed position, the opening angle of the shoji 3 is maintained while the shoji 3 is in the slightly opened position from the closed position. Will not be done. Therefore, it is possible to prevent the engaging body 41 from being closed due to some backlash or the like with respect to the window frame 2 of the shoji 3 while the engaging body 41 is still engaged with the rotating body 14.
(4) Since the spring member 42 that elastically supports the engaging body 41 from the side opposite to the rotating body 14 side in the axial direction A is provided, the engaging tooth 411 is pressed against the engaging tooth 141 by the moving operation. However, it is possible to prevent a large load from being applied to the engaging body 41 and the rotating body 14 due to the contraction of the spring member 42.
Further, even if the engaging teeth 141 and 411 are in contact with each other and the engaging body 41 cannot move to the engaging position, the spring member 42 contracts to move the operating handle 61 to the second position. It can be rotated from 612 to the first position 611. Therefore, regardless of the opening angle of the shoji 3, the operation handle 61 can be rotated to the first position 611 and the second position 612, and the latch device 50 can be firmly operated to be hooked and released. It is possible to configure an operating device 60 that operates both the opening angle holding device 10 and the latch device 50 in conjunction with each other.
(5) Since the opening angle holding device 10 is installed on the upper frame 21 and the upper stile 31, for example, the opening angle is compared with the case where the opening angle holding device 10 is installed on the lower frame 22 and the lower stile 32 side. It is possible to reduce the possibility that the holding device 10 itself obstructs the passage of the outer casement window 1.

[Modification example]
The present invention is not limited to the configuration described in the above embodiments, and modifications to the extent that the object of the present invention can be achieved are included in the present invention.
For example, in the above embodiment, the rotating body 14 and the engaging body 41 are arranged on the axis 161 of the spiral rod 16, but may be arranged at a position deviating from the axis 161. For example, the engaging body 41 may be arranged. It may be configured to engage with the peripheral surface of the rotating body 14 by frictional contact.
In the above embodiment, the flat plate portion 162 is formed on the spiral rod 16, but if it is not necessary to allow the slider 17 to move while the rotation of the spiral rod 16 is stopped, the configuration of the flat plate portion 162 is omitted. May be good.
In the above embodiment, the engaging body 41 is elastically supported by the spring member 42, but this configuration may be omitted. In this case, the configuration of the spring receiver 43 and the connecting shaft 44 is omitted, and the engaging body 41 is connected to the lateral interlocking bar 64 and is connected to the unit case 45 in the axial direction A, for example, as in the first modification shown in FIG. It is housed so that it can be guided.
In the above embodiment, the engaging body 41 is an integral structure in which the engaging teeth 411 are formed, but instead, the base and the engaging portion rotatably in frictional contact with the base are used. It may be provided with an engaging body with a configured slipper mechanism. In this engaging body, when a large opening / closing force is applied to the obstacle 3 and a large force is applied between the engaging tooth 141 of the rotating body 14 and the engaging tooth portion, the engaging tooth portion is applied to the base portion. It rotates against the frictional resistance force and can release the overload between the engaging tooth 141 and the engaging tooth portion.
In the above embodiment, the engaging teeth 141 and 411 have flat tip surfaces 142 and 412 and are configured as rectangular teeth, but at least one of the engaging teeth 141 and 411 has a rotation direction. At least one of the left and right edges in R may be an engaging tooth formed by the slope, and the left and right edges are formed by the slopes 91 and 92, for example, as in the second modification shown in FIG. It may be a chevron-shaped engaging tooth 90. In the engaging tooth 90 shown in FIG. 8, the tip where the slopes 91 and 92 meet is curved, and the entire peripheral edge of the engaging tooth 90 is formed in a wavy shape. In the case of having the engaging teeth 90, when the rotating body 14 and the slopes 91 and 92 of the engaging teeth 90 of the engaging body 41 hit each other by the moving operation of the engaging body 41, the approaching movement of the engaging body 41 accompanies the movement. Since the rotating body 14 rotates, the engaging tooth 90 can be moved to the engaging position. In this way, the positions of the engaging teeth 90 of the engaging body 41 and the rotating body 14 in the rotation direction R can be automatically adjusted, and the opening angle of the shoji 3 can be smoothly held.
Further, when a large opening / closing force is applied to the shoji 3, the slopes 91 and 92 that abut against each other slip, and the engaging body 41 separates from the rotating body 14 against the elastic force of the spring member 42. The opening and closing movement of the shoji 3 can be allowed, and an overload can be suppressed from being applied to the engaging body 41 and the rotating body 14.
In the above embodiment, the twist pitch of the spiral rod 16 is the same pitch, but the twist pitch may be different along the axial direction A. In this case, by setting the twist pitch, the rotation amount of the spiral rod 16 with respect to the movement amount of the slider 17 can be adjusted, thereby opening and closing the obstacle 3 with respect to the opening / closing movement caused by the rotation of the spiral rod 16. The resistance can be set. For example, by reducing the twist pitch, the amount of rotation of the spiral rod 16 with respect to the amount of movement of the slider 17 increases, and the opening / closing resistance can be increased. Further, by increasing the twist pitch, the amount of rotation of the spiral rod 16 with respect to the amount of movement of the slider 17 can be reduced, and the opening / closing resistance can be reduced.
In the above embodiment, the shaft pin 18 through which the resin washer 181 is inserted is crimped to the link arm 19, but when it is not necessary to generate a frictional resistance force by pressure contact of the resin washer 181 with the link arm 19, the said case is concerned. The configuration of the resin washer 181 may be omitted.
In the above embodiment, the outer casement window 1 includes the latch device 50, but this configuration may be omitted. In this case, the operation handle 61 may be used as a gremon handle, and a lock holder with which the gremon handle engages may be formed in the vertical frame 23 to form a gremon lock.
In the above embodiment, the slide base 11 is attached to the upper frame 31 and the link arm 19 is attached to the upper frame 21, but the present invention is not limited to this, and the slide base 11 is attached to the upper frame 21 and the link arm 19 is attached. It may be attached to the upper stile 31. Further, the opening angle holding device 10 is attached to the upper frame 21 and the upper stile 31 and arranged on the upper part of the outer casement window 1, but is not limited to this, and is attached to the vertical frame 23 and the vertical stile 33 to the outside. It may be arranged at the side edge portion of the casement window 1, or may be attached to the lower frame 22 and the lower frame 32 and arranged at the lower part of the outer casement window 1.

In the above embodiment, the outer casement window 1 is provided with the opening angle holding device 10 described above, but instead, the opening angle holding device 10B is provided as in the third modification shown in FIGS. 9 to 12. You may.
The opening angle holding device 10B includes a slide base 11B that movably supports the slider 17 along the axial direction A, rotating bodies 14B and 15 rotatably supported by the bearing 12B and the unit case 45B, and rotating bodies at both ends. For the spiral rod 16 attached to 14B, 15, the slider 17 engaged with the spiral rod 16, the link arm 19 rotatably connected to the slider 17 via the shaft pin 18, and the rotating body 14B. It includes a rotation stop unit 40B having an engaging body 41B that can move from an engaged position to a non-engaged position.
The bearing 12B and the unit case 45B are attached to the upper stile 31. Both ends of the slide base 11B are placed on the upper surfaces of the bearing 12B and the unit case 45B and screwed to the upper stile 31. Since the slide base 11B is installed in this way, the bearing 12B, the unit case 45B, the rotating bodies 14B and 15, the spiral rod 16 and the slider 17 are arranged between the upper stile 31 and the slide base 11B, and are arranged in each of these configurations. Dust is less likely to accumulate.
The bearing 12B is formed with an elongated hole 122 through which a screw 121 screwed into the end of the slide base 11B is inserted. The elongated hole 122 penetrates the bearing 12B in the Y-axis direction and extends in the axial direction A. The bearing 12B configured in this way can adjust the position in the axial direction A with the screw 121 loosened, and by adjusting the position in the axial direction A in the direction of pulling the bearing 12B away from the unit case 45B, the bearing 12B It is possible to eliminate rattling in the axial direction A between the rotating bodies 14B and 15 and the unit case 45B, and it is possible to improve the accuracy of the holding angle by the opening angle holding device 10B.
The unit case 45B covers the engaging teeth 145 and 415 of the rotating body 14B and the engaging body 41B in a state of being attached to the end portion of the slide base 11B, and is dustproof in the engaging portion of the rotating body 14B and the engaging body 41B. Is improving. The unit case 45B is combined with the unit case 45A that guides the rotation stop unit 40B to form one case. Further, the unit cases 45A and 45B constitute a guide portion 453 that can move the engaging body 41B in the axial direction A and guides the engaging body 41B in the rotation direction R so as not to rotate. In the third modification, the unit cases 45A and 45B are made of separate members, but may be integrated.

As shown in FIGS. 11 and 12, the rotating body 14B and the engaging body 41B are formed with engaging teeth 145 and 415 as engaging portions protruding in the axial direction A from each other, respectively.
A plurality of engaging teeth 145 are provided along the circumferential direction of the rotating body 14B, and the tip surface 146 thereof is a flat surface along a surface orthogonal to the axial direction A. Further, both side surfaces of the engaging teeth 145 located on both the left and right edges in the circumferential direction are formed by slopes 147 and 148 inclined with respect to the axial direction A. A bottom surface 149 is located along a plane orthogonal to the axial direction A between the plurality of engaging teeth 145. On the slope 147, the end portion on the engaging body 41B side in the axial direction A is continuous with the tip surface 146, and the end portion on the spiral rod 16 side in the axial direction A is continuous with the bottom surface 149. On the slope 148, the end portion on the engaging body 41B side in the axial direction A is continuous with the tip surface 146, and the end portion on the spiral rod 16 side in the axial direction A is continuous with the bottom surface 149. The slopes 147 and 148 are inclined about 10 to 17 degrees with respect to the axial direction A so that the ends continuous with the tip surface 146 are located closer to each other in the circumferential direction than the ends continuous with the bottom surface 149. The engaging teeth 145 are inclined, and the engaging teeth 145 have a chevron shape (trapezoidal shape in the third modification) having a sloping tip due to the slopes 147 and 148.
A plurality of engaging teeth 415 are provided along the circumferential direction of the engaging body 41B, and the tip surface 416 thereof is a flat surface along a surface orthogonal to the axial direction A. Further, both side surfaces of the engaging tooth 415 located on both the left and right edges in the circumferential direction are formed by slopes 417 and 418 inclined with respect to the axial direction A. A bottom surface 419 is located along a plane orthogonal to the axial direction A between the plurality of engaging teeth 415. On the slope 417, the end portion on the rotating body 14B side in the axial direction A is continuous with the tip surface 416, and the end portion on the spring receiver 43 side in the axial direction A is continuous with the bottom surface 419. On the slope 418, the end portion on the rotating body 14B side in the axial direction A is continuous with the tip surface 416, and the end portion on the spring receiver 43 side in the axial direction A is continuous with the bottom surface 419. The slopes 417 and 418 are inclined about 10 to 17 degrees with respect to the axial direction A so that the ends continuous with the tip surface 416 are located closer to each other in the circumferential direction than the ends continuous with the bottom surface 419. The engaging teeth 415 are inclined, and the engaging teeth 415 have a chevron shape (trapezoidal shape in the third modification) having a sloping tip due to the slopes 417 and 418.
The position of the engaging tooth 415 of the engaging body 41B is set to a position where the tip surface 416 faces the tip surface 146 of the engaging tooth 145 of the rotating body 14B in a state where the slider 17 is arranged on the flat plate portion 162. (See FIG. 12 (A)).

In the above-mentioned opening angle holding device 10B, when the operation handle 61 is in the second position 612 in the closed state of the outer casement window 1, the engaging body 41B is attached by the spring member 42 as shown in FIG. 12 (A). The tip surface 416 is in contact with the tip surface 146 of the rotating body 14B.
When the operation handle 61 is operated from the second position 612 to the first position 611 to release the hooking of the shoji 3 to the window frame 2, the spring receiver 43 moves in the axial direction A in the direction away from the engaging body 41B. , The engaging body 41B moves in a direction away from the rotating body 14B together with the connecting shaft 44. Next, when the shoji 3 is opened and moved with respect to the window frame 2 and the shoji 3 is held at a desired opening angle, the operation handle 61 is operated from the first position 611 to the second position 612, and the spring receiver is received. While moving 43 toward the rotating body 14B in the axial direction A, the engaging body 41B is urged by the spring member 42, and the engaging teeth 415 of the engaging body 41B are engaged with the rotating body 14B as shown in FIG. 12 (B). Engage with the 145 joint teeth. At this time, the slopes 417 and 418 of the engaging teeth 415 abut on the slopes 147 and 148 of the engaging teeth 145. In this engaged state, even if an opening / closing moving force is applied to the obstacle 3 by wind or the like and transmitted as a rotational force in the rotation direction R to the spiral rod 16 and the rotating body 14B, the rotating body 14B engages with the engaging body 41B. Therefore, rotation in the rotation direction R does not occur. Therefore, the opening angle of the shoji 3 with respect to the window frame 2 is maintained at a desired angle.

Here, an excessively large opening / closing force is applied to the obstacle 3 by an operation or the like, and as shown in FIG. 12C, the engaging body 41B is moved from the rotating body 14B in the axial direction A by the rotational force transmitted to the rotating body 14B. When pushed back in the direction of separation, the engaging teeth 145 and 415 are disengaged from each other, and the rotating body 14B is allowed to rotate. Even if an excessively large opening / closing force is applied to the shoji 3 in this way, an excessively large force is not applied to the opening angle holding device 10B. When an excessively large opening / closing force is not applied to the shoji 3, the engaging body 41B re-engages with the rotating body 14B while being urged by the spring member 42, and the opening angle of the shoji 3 is held again.

In the above-described embodiment, the outer casement window 1 that can be opened outward is described as a fitting, but if it is an open-type fitting that includes a frame body and a door body that can be opened and closed indoors or outdoors with respect to the frame body. Often, for example, it may be an inward casement window, a rotating window, a vertical sliding window, an inwardly tilting window, a protruding window, or various casement doors or doors.

[Summary of the present invention]
The opening angle holding device of the present invention is an opening angle holding device that holds the opening angle of the door body with respect to the frame body, and has a spiral rod that can be attached to one of the frame body and the door body, and the said. A slider that is movably engaged with the spiral rod along its axial direction, and is attached to the slider on one end side and can be attached to the other of the frame body and the door body on the other end side. A link arm, a rotating body fixed to the spiral rod, and an engaging body engaged with the rotating body are provided, and the spiral rod is configured to be rotatable as the slider moves. The engaging body is characterized in that it is movably configured to be movable between an engaging position that engages with the rotating body and a non-engaging position that does not engage with the rotating body.
According to the opening angle holding device of the present invention, when the spiral rod is attached to one of the frame and the door body of the fitting such as the outer casement window and the casement window and the link arm is attached to the other, the door body A moving force is transmitted from the link arm to the slider by opening and closing movement indoors and outdoors, and when this slider moves in the axial direction of the spiral rod, the spiral rod and the rotating body fixed to the spiral rod rotate. Then, with the door body at a desired opening angle with respect to the frame body, the engaging body is moved from the non-engaging position to the engaging position to engage with the rotating body, and the rotating body and the spiral rod rotate. Can be stopped. In the state where the rotation of the spiral rod is stopped, the slider cannot move in the axial direction of the spiral rod even if the opening / closing movement force is applied to the door body, so that the opening angle of the door body can be maintained. In this way, by moving the engaging body, the opening angle of the door body can be maintained at a desired opening angle.

In the opening angle holding device of the present invention, the rotating body and the engaging body are arranged on the axis of the spiral rod, and the rotating body and the engaging body can be engaged with each other by the axis of the spiral rod. It is preferable that each engaging portion protruding in the direction is formed.
According to such a configuration, the rotating body and the engaging body are respectively arranged along the axis of the spiral rod, so that the engaging body is disengaged from the axis of the spiral rod so as to engage with the peripheral surface of the rotating body, for example. It is possible to reduce the fitting dimension in the direction intersecting the axis of the spiral rod as compared with the case where the spiral rod is arranged. Therefore, it can be easily installed on a frame or a door having a small expected dimension or a found dimension.

In the opening angle holding device of the present invention, the spiral rod is formed with a flat plate portion along the axial direction, and at the rotational position of the spiral rod in a state where the slider is arranged on the flat plate portion, the said The engaging portion of the rotating body is preferably located facing the engaging portion of the engaging body.
According to such a configuration, when the slider is arranged on the flat plate portion, the spiral rod does not rotate even if the slider moves in the axial direction along the flat plate portion, and the engaging portion of the rotating body and the engaging body is formed. The state where they face each other is maintained. Even if the engaged body is moved from the non-engaged position to the engaged position in this state, the tip surfaces of the engaged parts of the engaged body and the rotating body come into contact with each other and the engaged parts do not engage with each other, and the door body The opening angle is not maintained. By forming the flat plate portion on the spiral rod in this way, it is possible to provide an angle region that does not maintain the opening angle of the door body. This angular region can be adjusted by the position and length dimension of the flat plate portion in the axial direction of the spiral rod. For example, if the slider is placed on the flat plate while the door is in the slightly open position from the closed position, the opening angle of the door is maintained while the door is in the slightly open position from the closed position. Never. For this reason, it is possible to prevent the door body from closing due to some play with respect to the frame body while the engaging body is engaged with the rotating body, that is, the opening angle of the door body is maintained at the minute opening position. obtain.

In the opening angle holding device of the present invention, it is preferable that the engaging body is further provided with an elastic member that urges the engaging body toward the rotating body in the axial direction.
According to such a configuration, even if the engaging portion of the engaging body is pressed against the engaging portion of the rotating body due to the movement, the elastic member is shrunk to prevent a large load from being applied to the engaging body and the rotating body. be able to.
Further, even if the engaging portions of the engaging body and the rotating body are in contact with each other and the engaging body cannot move to the engaging position, the elastic member contracts so that the operation handle for moving the engaging body or the like is moved to the engaging position. It can be operated up to the position corresponding to.

In the opening angle holding device of the present invention, it is preferable that at least one of the rotating body and the engaging body is formed in a chevron shape.
According to such a configuration, when a large opening / closing force of a predetermined value or more is applied to the door body in the engaged state of the engaging body and the rotating body, at least one of the engaging body and the rotating body has a chevron-shaped engaging portion. Since the engaging portions move apart from each other while the other engaging portion slides along the slope of the door body, the door body can be opened and closed by the large opening / closing force. As a result, it is possible to prevent a large load from being applied to the door body and the opening angle holding device.

In the opening angle holding device of the present invention, it is preferable that both side surfaces continuous with the tip surface of the engaging portion are formed by slopes inclined in a direction approaching each other on the tip surface side with respect to the axial direction. ..
According to such a configuration, when a large opening / closing force of a predetermined value or more is applied to the door body in the engaged state of the engaging body and the rotating body, the engaging body moves away from the rotating body while the slopes of the engaging portion slide with each other. By doing so, the engagement is released, and the opening and closing movement of the door body is allowed. As a result, it is possible to prevent a large load from being applied to the door body and the opening angle holding device.

In the opening angle holding device of the present invention, a slide base that movably supports the slider along the axial direction is arranged above the spiral rod, and the slide base has the frame at both ends thereof. It is preferably attached to one of the body and the door body.
According to such a configuration, by arranging the slide base above the spiral rod, it is possible to suppress the accumulation of dust on the spiral rod, the slider, and the like. Further, as described above, it is possible to suppress a large load from being applied to the opening angle holding device, so that the mounting strength is sufficient even if both ends of the slide base are attached to one of the frame body and the door body. You can reduce the trouble.

In the opening angle holding device of the present invention, the rotating body is fixed to one end of the spiral rod, and another rotating body is fixed to the other end of the spiral rod. It is preferable that the bearing is supported by a bearing that is vertically adjustable in position with respect to one of the frame and the door.
According to such a configuration, by adjusting the position of the bearing in the axial direction, it is possible to eliminate rattling of the spiral rod and each rotating body, and it is possible to improve the accuracy of the holding angle by the opening holding device.

The fitting of the present invention includes a door body that can be opened and closed with respect to the frame body, the above-mentioned opening angle holding device of the present invention attached to the frame body and the door body, and an operation device for moving the engaging body. It is characterized by having.
According to the fitting of the present invention, it is possible to construct a fitting capable of exhibiting the same action and effect as the above-mentioned opening angle holding device of the present invention.

1 ... External casement window (joint), 10,10B ... Opening angle holding device, 14,14B, 15 ... Rotating body, 141,145,411,415,90 ... Engagement teeth (engagement part), 16 ... Spiral rod , 161 ... Axis line, 162 ... Flat plate part, 17 ... Slider, 18 ... Axis pin, 181 ... Resin washer, 19 ... Link arm, 2 ... Window frame (frame body), 3 ... Shoji (door body), 40, 40B ... Rotation stop unit, 41, 41B ... engaging body, 42 ... spring member (elastic member), 50 ... latch device, 60 ... operating device, 61 ... operating handle, 611 ... first position, 612 ... second position, 65 ... interlocking Mechanism, 70 ... thumb turn, 91, 92 ... slope, A ... axial direction, R ... rotational direction.

Claims (9)

An opening angle holding device that holds the opening angle of the door to the frame.
A spiral rod that can be attached to one of the frame and the door,
A slider engaged with the spiral rod so as to be movable along its axial direction,
A link arm that is attached to the slider on one end side and can be attached to the other of the frame body and the door body on the other end side.
A rotating body fixed to the spiral rod and
It comprises an engaging body that engages with the rotating body so that the rotation of the rotating body and the movement of the slider can be stopped .
The spiral rod is configured to be rotatable as the slider moves.
The opening angle holding device is characterized in that the engaging body is configured to be movable between an engaging position that engages with the rotating body and a non-engaging position that does not engage with the rotating body. In the opening angle holding device according to claim 1,
The rotating body and the engaging body are arranged on the axis of the spiral rod.
An opening angle holding device, wherein each of the rotating body and the engaging body is formed with an engaging portion that protrudes in the axial direction of the spiral rod so as to be able to engage with each other. In the opening angle holding device according to claim 2,
The spiral rod is formed with a flat plate portion along the axial direction.
An opening angle holding device, characterized in that, in a rotational position of the spiral rod in a state where the slider is arranged on the flat plate portion, the engaging portion of the rotating body is located facing the engaging portion of the engaging body. In the opening angle holding device according to claim 2 or 3.
An opening angle holding device, characterized in that the engaging body is further provided with an elastic member that urges the engaging body toward the rotating body side in the axial direction. The opening angle holding device according to any one of claims 2 to 4.
An opening angle holding device, characterized in that at least one of the rotating body and the engaging body is formed in a chevron shape. In the opening angle holding device according to claim 4 or 5.
An opening angle holding device characterized in that both side surfaces continuous with the tip surface of the engaging portion are formed by slopes inclined in a direction approaching each other on the tip surface side with respect to the axial direction. In the opening angle holding device according to claim 6,
A slide base that movably supports the slider along the axial direction is arranged above the spiral rod.
An opening angle holding device, characterized in that the slide base is attached to one of the frame body and the door body at both ends thereof. The opening angle holding device according to any one of claims 1 to 7.
The rotating body is fixed to one end of the spiral rod.
Another rotating body is fixed to the other end of the spiral rod.
The opening angle holding device is characterized in that the other rotating body is supported by a bearing mounted so as to be axially adjustable with respect to one of the frame body and the door body. The door body that can be opened and closed with respect to the frame body, the opening angle holding device according to any one of claims 1 to 8 attached to the frame body and the door body, and the engaging body are moved. A fitting characterized by being equipped with an operating device.

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