JPH0759861B2 - Folding door hinge device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a folding door hinge device.

[Prior Art] A hinge device for a folding door of this kind is disclosed in, for example, Japanese Patent Laid-Open No. 1-284684.
As shown in Japanese Patent Laid-Open Publication No. 2004-242, in general, an inclined connecting piece which is inclined and projected from a base body in a rotating direction, a cylindrical shaft swelling formed at the tip of the inclined connecting piece, and a rotation range of the inclined connecting piece is 90 degrees. Since it is intended for a linear opening portion, the bearing is provided with a pair of opposed fins of the same length that rotatably fits the cylindrical support shaft by forming an opening groove demarcated in °. 1-2476
As in No. 82, a plurality of hinge devices of this kind are formed in a row so that the rotation range is 180 °, and the hinge device is for a curved opening.

[Problems to be Solved by the Invention] The former has a relatively simple structure and can obtain a hinge device that stably folds a folding door at a low cost, but it has a straight opening having a rotation range of 90 °. Therefore, it cannot be used for folding doors with curved openings that are curved in the direction opposite to the folding direction of arched, S-shaped, or meandering folding doors. On the other hand, the latter has a rotation range of 180 °, so a hinge device that can perform stable folding corresponding to this curved opening can be obtained, but the structure becomes complicated and costs are increased, and in this type of curved opening, The 180 ° rotation range is not always necessary, and generally a maximum of about 120 ° is sufficient, and in this case, the cost increases and the rotation range becomes excessive.

The present invention has been made in view of such circumstances, and the problem to be solved is to maintain the above-mentioned simple structure for a linear opening as much as possible and to stably cope with a curved opening as much as possible. To provide a hinged device for folding doors.

[Means for Solving the Problems] According to the present invention, in accordance with the above-mentioned problems, the non-rotating side of the fins on the non-rotating side of the bearing is relatively short due to the mutual relationship of the inclined connecting bar, the cylindrical support shaft, and the bearing. By using a pair of opposed fins having different lengths or the same length based on this, the opening angle of the bearing opening groove is expanded to the non-rotating side, and the bearing is rotatable in the non-rotating direction warp shape. As a result, the folding door can be used for curved openings, and by setting the angle of the slanted joints to 45 ° and the opening angle of the opening groove to 110 ± 10 °, it is suitable for curved openings and can accommodate a relatively wide range. In addition, it is possible to prevent disengagement as much as possible, that is, according to claim 1 of the present invention, the slanted connecting strip is provided so as to slantly project from the base body in the rotation direction, and the tip of the slanted connecting strip. A cylindrical support shaft bulging on the upper end and an opening groove that defines the range of rotation of the inclined connecting strip. And a bearing having a pair of opposed fins that rotatably fit the cylindrical support shaft, and the length of the opposed fins on the non-rotating side of the bearing is relatively shortened. The pair of opposed fins have different lengths, or the lengths of the opposed fins on the non-rotating side, which are relatively shortened, are set as a reference, and the pair of opposed fins have the same length, and the opening angle of the opening groove is not A hinged device for a folding door, characterized in that the bearing expands toward the turning side and can turn in a non-turning direction in a warped shape. The hinge device of the folding door is characterized in that the inclined projecting angle of is 45 ° and the opening groove opening angle of the bearing is 110 ± 10 °.
These are the means of solving the above problems as the gist of the invention.

[Embodiment] The present invention will be described in more detail with reference to the drawings showing embodiments. A is a connecting portion of a folding door provided with a pair of hinge devices 1 and 2 is a connecting frame provided in the connecting portion A. Reference numerals 9 denote vertical frames of folding doors, and in FIGS. 1 to 3, the hinge device 1 has a slanting connecting strip formed by using the connecting frame 2 as a base body and slantingly projecting from the base body in a rotating direction. 6, a cylindrical support shaft 7 bulged at the tip of the inclined connecting strip 6, and an opening groove 13 defining the range of rotation of the inclined connecting strip 6 are formed to allow the cylindrical supporting shaft 7 to rotate freely. A bearing 11 having a pair of opposed fin ribs 12 to be fitted, and the length of the opposed fin rib 12 on the non-rotating side of the bearing 11 is relatively shortened to make the pair of opposed fin ribs 12 different. It is assumed that the bearing 11 is long and the opening angle of the opening groove 13 is expanded to the non-rotating side so that the bearing 11 is rotatable in the non-rotating direction warped shape. Ri is further an opening groove 13 opening angle of the inclined projecting angles to this as 45 ° and the bearing 11 of the inclined protruding strip 6 in the present embodiment as 100 °.

That is, in this example, the inclined connecting strip 6 is a projecting strip having a wall thickness of 1.5 mm, and is formed in the direction of rotation of the hinge device 1 from the end portions of the side walls 3 on both sides of the bell-shaped base portion of the connecting frame 2 of the base body. It is assumed that each of them is inclined and projected at an angle of °, and the thickness is 11.5
Each cylinder supporting shaft 7 having a C-shape with a relatively large diameter of mm is provided, and the inclined connecting strip 6 and the cylindrical supporting shaft 7 are integrally formed by a connecting frame 7 and an aluminum extraction material. It has been done.

Further, the bearing 11 has a circular shape having an inner diameter of 12 mm, and the non-rotating side facing fin strip 12 is relatively sized relative to the turning side facing fin strip 12 by an approximate dimension corresponding to the thickness of the inclined connecting strip 6. By shortening the lengths of the pair of opposed fins 12 to different lengths, the opening angle of the opening groove 13 is expanded by 10 ° toward the non-rotating side.
The bearing 11 is formed by forming a pair of opposed fins 12 on the vertical frame 9 so as to be integrally molded with the same by aluminum extruded material.

In each hinge device 1, a cylindrical support shaft 7 is rotatably fitted in a bearing 11, and an opening groove 13 defines the rotation range of the inclined connecting strip 6 having the cylindrical support shaft 7. In the present example, the rotatable support of the cylindrical support shaft 7 is performed in a state of mutual surface contact, so that the cylindrical support shaft 7 is
In combination with the fact that the diameter is relatively large, the certainty of fitting is improved and the possibility of detachment due to the expansion of the opening groove 13 is prevented.

In the hinge device 1 of this example, the bearing 11 is 10 in the non-rotating direction.
° It can be rotated in a warped shape, so the folding door can be opened and closed in a stable manner in response to curved openings such as R-shaped, S-shaped, and meandering that have a curvature in the direction opposite to the folding direction. Since the basic structure is the same as that for the straight opening, the structure is simple and can be relatively low cost.

4 to 6 show other examples. In FIG. 4, the connecting frame 2 is formed as a split mold which can be fitted by two connecting frame members 20 and 21. The inclined connecting strips 6 and the cylindrical support shafts 7 are provided as the bases respectively, and the cylindrical support shafts 7 are configured as hollow complete cylinders with inner reinforcing ribs, while bearings
11 the non-rotating side facing fin strip 12 and the thickness of the inclined connecting strip 6
The length is relatively shortened by an approximate dimension of 2 mm, and the pair of opposing fin strips 12 have the same length based on the relatively short length of the opposing fin strips 12 on the non-rotating side, that is, the opposing sides on the swiveling side. The fins 12 are made to have the same length by similarly shortening the length on the non-rotating side as a reference, and the opening angle of the opening groove 13 is increased by 15 ° toward the non-rotating side to 115 °. Further, this is an example in which the cylindrical support shaft 7 is fitted with the bearing 11 at three positions on the outer peripheral side of the cylindrical support shaft 7 in a surface contact fit state, and FIG. The side wall 3 of the base body is provided with a slanted connecting strip 6 and a cylindrical support shaft 7, and the connecting frame 2 is provided with a bearing 11 by integral molding of aluminum extruded material. And an example in which the opening angle of the opening groove 13 is also 115 °, and FIG. 6 shows the relationship between the cylindrical support shaft 7 and the bearing 11 in the example of FIGS. 1 to 3 above. An example in which as in the example of FIG.

FIG. 7 shows an example in which a panel 30 in a folding door of a horizontal shutter, for example, is hingedly connected by a connecting portion A having a pair of hinge devices 1. At this time, a hanging door roller 32 is mounted on the connecting frame 2.
This is an example in which a block 33 having is attached and the block 33 is hingedly fixed by a screw 34 to the cylindrical support shaft 7 provided in the connection frame 2.

In the figure, 4 is a bottom wall of the hollow base of the connecting frame 2, 5 is a handle rib of the connecting frame 2, and 8 is a facing fin strip 12 on the rotating side formed between the connecting frame 2 and the base wall 3 of the vertical frame 9. The receiving groove 10 is a glass panel fitting groove of the vertical frame 9, and the reference numeral 31 is an upper frame which is assembled with the vertical frame 9 to form the panel 30.

Although the illustrated example is as described above, the cylindrical support shaft for the linear opening generally has an outer diameter of 7 to 8 mm, but it is possible to increase the diameter as much as possible. It is effective in preventing disengagement, and from the viewpoint of disengagement prevention, it is desirable that the outer diameter be 10 mm or more.

The shortening of the opposing fin strip on the non-rotating side can increase the opening angle of the opening groove by performing this for the approximate dimension according to the wall thickness of the inclined connecting strip. The above-mentioned shortening should be performed based on the wall thickness of the slanted connecting strip. Generally, the slanted connecting strip should have a thickness of about 1.5 to 2 mm. It is desirable to set it within the range of 110 ± 10 °, and if it exceeds this range, the cylindrical support shaft and the bearing are likely to come off, especially when the folding door is pulled and stretched when closed.

In addition, it is desirable that the slanted joints have an inclined projecting angle of 45 ° in order to allow the warped rotation of the bearing.
It does not exclude some angle changes based on this.

In carrying out the present invention, including the above, specific shapes, structures, materials, and dimensions of the base body, the slanted connecting strip, the cylindrical support shaft, the bearing, the facing fin strip, and the opening groove, the relationship between them, and the form of the folding door The above can be variously modified without departing from the gist of the above invention, and is not particularly limited to the one illustrated and described above.

[Advantage of the Invention] As described above, according to the first aspect of the present invention, the inclined connecting piece that is inclined and projected from the base body in the rotation direction, the cylindrical support shaft that is bulged at the tip of the inclined connecting piece, and the inclined connecting piece And a bearing having a pair of opposed fins for rotatably fitting the cylindrical support shaft and defining an opening groove that defines the range of rotation of the cylindrical support shaft, and the length of the opposed fins on the non-rotating side of the bearing. The length of the pair of opposed fins is made relatively short to make the pair of opposed fins different in length, or the pair of opposed fins are made to have the same length based on the length of the relatively thin opposed fins on the non-rotating side. Since the opening angle of the opening groove is enlarged toward the non-rotating side to make the bearing rotatable in the non-rotating direction warp shape,
The conventional simple structure for straight openings is maintained as much as possible to make it relatively low cost, and the curved shape is curved in the direction opposite to the folding direction of the folding door, S-shaped, meandering, etc. It is possible to provide a hinge device for a folding door that can stably and flexibly respond to a curved opening.

In addition, the second aspect of the invention is characterized in that the inclined projecting angle of the inclined connecting strip of the first aspect is 45 ° and the opening groove opening angle of the bearing is 110 ± 10 °. Therefore, in addition to the above, A hinge device for a folding door that is suitable for a curved opening and can be used in a relatively wide range, and can be used in a folding door to prevent detachment as much as possible.

[Brief description of drawings]

1 to 3 are cross-sectional views showing a hinge device and its operating state, and FIGS. 4 to 6 are cross-sectional views showing other examples, respectively. FIG. 6 is a partially enlarged front view of a folding door using a hinge device. DESCRIPTION OF SYMBOLS 1 ... Hinge device, 11 ... Bearings 6 ... Inclined connection strips, 12 ... Opposed fin strips 7 ... Cylindrical support shaft, 13 ... Opening groove

Claims (2)

[Claims] 1. A tilted connecting piece that is provided so as to project obliquely from a base body in the direction of rotation, and a cylindrical support shaft that is bulged at the tip of the tilted connecting piece.
A bearing provided with a pair of opposed fins that rotatably fit the cylindrical support shaft by forming an opening groove that defines the rotation range of the inclined connecting strip, and The length of the opposing fins is relatively shortened to make the pair of opposing fins different in length, or the pair of the opposing fins is set on the basis of the relatively short length of the opposing fins on the non-rotating side. A hinge device for a folding door, characterized in that the fins have the same length and the opening angle of the opening groove is enlarged toward the non-rotating side so that the bearing is rotatable in a non-rotating direction warped shape. 2. The inclined projecting angle of the inclined connecting strip according to claim 1 is 45.
And the opening angle of the bearing opening groove is 110 ± 10 °.