JP3164133B2 - Ventilation window opening adjustment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening adjusting device for locking a sash in an intermediate opening position in a ventilation window in which the sash is opened to the indoor side.

[0002]

2. Description of the Related Art A similar technique is disclosed in Japanese Utility Model Laid-Open Publication No. 48-2864.
There is known a fenestration stopper device disclosed in Japanese Patent Application Laid-Open No. 4 (Kokai) No. 4 (1994) -107. This device is applied to a window which is opened and closed by rotating a shoji around a vertical axis. A groove is formed in a substrate supporting the shoji in a direction of a center line of a plane, and one end of the groove and an intermediate portion thereof are formed. A fitting portion is formed at a required position and a small-diameter portion slidably fitted into the groove and a large-diameter shaft portion fitted into the fitting portion.
A support arm provided with a stepped shaft at one end is rotatably supported by a window frame, and a fitting hole of the substrate and a large-diameter shaft of the shaft are non-removably connected by a spring. The shoji is locked at the required position in the middle. To change the locking position for changing the opening position of the sliding door, one end of the support arm is manually pushed down to disengage the large-diameter shaft portion from the fitting hole, and then the sliding door is locked at a predetermined position.

[0003]

In the above-described conventional window stopper device, a fitting hole is formed at a required position of the opening groove provided in the substrate, into which a large-diameter shaft portion is fitted. The large-diameter shaft portion is locked by a spring, so that the sash can be locked at an intermediate position.However, the insertion of the large-diameter shaft portion with the insertion hole is caused by the reaction force of the spring. Therefore, there is a problem that the sliding door cannot be opened or closed only after the supporting arms are manually pushed down to separate them.

In order to solve the above-mentioned problems, the present invention provides a ventilation window in which a lower end of a shoji is rotatably supported by a window frame and the shoji is opened to the indoor side, and one of the window frame and the shoji is provided. Install the resilient plate bending in a direction along the shoji rotation axis members, this resilient plate towards the projecting member to the other member
Are provided on the same arc centered on the rotation axis.
The larger the opening angle of the shoji, the more
It is characterized in that a locking member is provided on the other member for engaging the projection member to position the sash at the intermediate opening position.

[0005]

When the shoji is opened from the closed position to the indoor side, the projection member and the locking member come into contact with each other in the middle of the opening, and the shoji stops at the intermediate opening position. When the sliding door is further pulled toward the indoor side, the protruding member retreats against the elastic force of the elastic plate, the contact state with the locking member is released, and the sliding door is further opened from the intermediate opening position.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
1 and 2, reference numeral 1 denotes a window frame of the ventilation window 2, which is formed by connecting an upper frame (not shown), left and right vertical frames 5, a lower frame 6, and a blind 3 in a framework. A vertical frame auxiliary member 5A is attached to the vertical frame 5 between the blind 3 and the lower frame 6. On the blind 3 and the lower frame 6, indoor side walls 3 a, 6 a, which extend over the entire left and right widths, are provided between the left and right vertical frames 5 on the indoor side from the center of the window frame width, with the indoor side faces in the same direction. I have. On the indoor side walls 3a and 6a,
Airtight material mounting grooves 3b, 6b are provided over the entire left and right widths toward the indoor side. The left and right vertical frame auxiliary members 5A are provided with the indoor side walls 3a and 6a and the indoor side wall 5 having the indoor side faces in the same direction.
a is provided with upper and lower airtight material mounting grooves 3b and 6b.
The joints with these are cut out, and the airtight members 11, 12, 13, 14 made of an elastic body are continuously mounted in the airtight material mounting grooves 3b, 5b, 6b through the cutouts. The indoor side surfaces of the airtight members 11 to 14 are positioned on substantially the same plane. This airtight material mounting groove 3
A rectangular ventilation hole 19 is formed surrounded by b, 5b and 6b.

[0007] In addition, the outer wall 3c is suspended from the ventilation holes 19 to the outside of the room over the entire width in the right and left directions, and the left and right vertical frame auxiliary members 5A are provided with the outside pieces 5c facing the inside. The airtight material mounting grooves 3d and 5d are provided in each of them toward the indoor side. Airtight materials 15, 16, 17 made of an elastic body are continuously mounted in the airtight material mounting grooves 3d, 5d, so that their indoor side surfaces are positioned substantially on the same plane. Next, a lower frame 6 is provided below the airtight material mounting groove 6b of the lower frame 6.
An arc-shaped swing support portion 6c is formed over the entire left and right widths of. Further, at a lower portion thereof, a closing member 8 is attached between the left and right inner walls 5B of the vertical frame 5. The closing member 8 has a hook-shaped support portion 2 for a shoji (described later) at its upper end.
A holding portion 8a that rotatably sandwiches 1 with the swinging supporting portion 6c is formed, and these constitute a supporting portion 9 of the shoji. At the upper end of the indoor side piece 6a, a hooking piece 10 for projecting toward the outside of the room to lock the sash 20 at a fully open position to the inside of the room and rainwater flowing from the outside of the indoor side wall 6a directly below the hooking piece 10 are provided. Rainwater return members 6d for preventing intrusion into the inside are protruded toward the outdoor obliquely downward direction, and extend between the left and right vertical frame auxiliary members 5A.

Next, the shoji screen 20 will be described. Shoji 20
The plate portion 20A has a size to entirely cover the ventilation hole 19, and a hook-shaped support portion 21 having an outer peripheral surface corresponding to the swing support portion 6c is provided at the lower end thereof over the entire left and right width. The hook portion 21 of the plate portion 20A is rotatably supported by the support portion 9 above the lower frame 6 toward the interior of the room, and is closed at a closed position A by a known handle rotating type sliding door closing device or the like (not shown). Airtight materials 11, 12, 1 on the indoor side
3 and 14 are pressed from the indoor side. Plate part 2
From 0A, a frame portion 20B protrudes toward the outdoor side with a width smaller than the distance between the inner walls 5E of the left and right vertical frame auxiliary members 5A, and engages with the hook pieces 10 from a lower portion of the outdoor side wall 20b of the frame portion 20B. A hook piece 23c having a hook-like tip is hung.

A base portion of an elastic plate 25 made of spring steel is fastened to the left and right end surfaces 20Ba of the frame portion 20B, and the front end portion 25a protrudes to the outside of the room. (Left and right direction). Elastic plate 2
In FIG. 5, projecting members (bolts) 26 and 27 are provided on an arc R centered on the rotation axis of the hook-shaped support portion 21 of the sliding door 20 on the side opposite to the mounting side of the elastic plate 25, that is, the corresponding left and right vertical frames. It is screwed toward the auxiliary member 5A, and the protrusion members 26 and 27
The size of the protrusion amounts T ₁ , T ₂ of the portion engaged with the ball caster 28 and the spring strength of the elastic plate 25 are such that the ball caster 28 and the protruding member 26 are provided when the shoji 20 is at the intermediate opening position B (C). In the state where (27) is in contact, the elastic plate 25 is set to have such a size that the elastic plate 25 is bent in the rotation axis direction only by the weight of the sash 20 and the locking of the elastic plate 25 is not easily released.
_{Why 2} is made larger than the protrusion amount T _1, the direction of the force to bend the elastic plate 25 by its own weight, towards the intermediate open position C is for greater than the position of the intermediate opening B. One of the protrusion members 26 is engaged with a ball caster 28 described later to
The mounting position is set so that 0 is locked at the intermediate opening position B at an opening angle of 30 degrees, and the other projection member 27 is locked at the intermediate opening position C at an opening angle of 60 degrees. Left and right vertical frame auxiliary members 5
A ball caster 28 serving as a locking member is mounted on the inner wall 5E of A with its case portion 28a positioned in the accommodation space 5F, and can freely roll in any direction via the thrust bearing 31 to the case portion 28a. Supported steel ball 2
The tip of 9 projects inward from the inner wall 5E, and the projecting member 26 (27) comes into contact with the outer peripheral surface of the steel ball 29 on the outdoor side.

In the ventilation window angle adjusting device having such a configuration, when the sliding door 20 in the closed position A is pulled into the room, the projecting member 26 comes into contact with the steel ball 29 of the ball caster 28 in the middle of the opening, so that the sliding door 20 is closed. The movement is prevented, and the sash 20 is stopped at the intermediate opening position B. When the sliding door 20 is further pulled indoors, the projection member 26 gets over the steel ball 29 while bending the elastic plate 25 inward by engagement with the steel ball 29. Then steel ball 29
, The other protrusion member 27 abuts to lock the sash 20 at the intermediate opening position C. When the sliding door 20 is further pulled, the projection member 27 rides over the steel ball 29 while bending the elastic plate 25 inward by engaging with the steel ball 29, and the contact state with the steel ball 29 is released, and the full opening shown in FIG. At the position D, the shoji 20 hooks the hook piece 23 on the hook piece 10 and fully opens the hook piece 23. In this way, the sash 20 is locked at a plurality of opening positions to adjust the opening of the sash 20. As described above, according to the present invention, the sash can be locked at the intermediate opening position only by the operation of opening the sash 20, and a complicated operation is not required unlike the related art. Also, the full opening position D or
When closing the sash 20 from the intermediate opening position B (C), only the closing operation causes the protruding members 26 and 27 to flex the elastic plate 25 and get over the steel ball 29.

[0011]

According to the ventilation window opening adjusting device of the present invention having the above-mentioned structure, an elastic plate which can be bent in the direction along the rotation axis of the shoji is attached to one of the window frame and the shoji. A protruding member is provided on the plate toward the other member, and a locking member is provided on the other member to engage the protruding member to position the shoji at the intermediate opening position. There is an advantage that the degree can be adjusted.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing a ventilation window opening degree adjusting device of the present invention.

FIG. 2 is a sectional view taken along line 11-11 of FIG.

FIG. 3 is an explanatory diagram showing a full opening position of a shoji.

[Explanation of symbols]

1 window frame, 2 ventilation window, 3 blind, 5 vertical frame,
5A Vertical frame auxiliary member, 6 Lower frame, 20 Shoji, 25
Elastic plate, 26, 27 projecting member, 28 locking member (ball caster), B, C intermediate opening position,
T ₁ , T ₂ protrusion amount

Claims (1)

(57) [Claims] 1. A lower end of a shoji is rotatably supported on a window frame,
In a ventilation window in which a shoji is opened to the indoor side, an elastic plate that can bend in a direction along the rotation axis of the shoji is attached to one of the window frame and the shoji. The same arc around the rotation axis toward the member
On the opening of the shoji
An opening adjusting device for a ventilation window, characterized in that the larger the angle is, the larger the step is, and the other member is provided with a locking member which engages with the protruding member to position the sash at the intermediate opening position.