JP2021173027A - Rod for use in folding door - Google Patents

Abstract

To provide a rod for locking a folding door configured in such a manner of connecting a plurality of panels when it is in the extended state.SOLUTION: Upon folding, a connecting rod 12 that moves up and down by handle operation is attached to a stile space of a subsidiary connecting part that extends from a vertically extending frame, the lower end of the connecting rod 12 is connected via a screw to a rod 8 that locks a folding door when it is extended and fits into a guide groove of the lower frame, and the rod 8 is inserted into a hole in a reinforcement member 17, which has a cross-sectional shape that allows it to be in contact with the inner surface of the stile space.SELECTED DRAWING: Figure 6

Description

The present invention relates to a rod attached to a folding door and fixed in a closed state, and the rod of the folding door is capable of easily adjusting the amount of protrusion.

As a device for opening and closing the frontage, a folding door composed of a plurality of panels connected via a joint is often used.
By the way, in the joint part of the folding door, a crane is attached to the upper end of the main joint part that does not protrude from the rail during the folding operation and is hung on the rail of the upper frame, and the slider protrudes from the lower end to the lower frame. It can be moved along the guide groove provided in.
Then, when the rod is extended and closed, the rod provided in the slave joint portion is lowered by the handle operation, protrudes downward and is fitted into the guide groove, and the folding door is locked so as not to open.

The rod can be moved up and down by operating the handle attached to the slave joint, but the amount of downward protrusion when descending must be an appropriate size (length). Therefore, in order to adjust the amount of protrusion by rotating the rod inside the frame of the slave joint portion, the rod is formed in a columnar shape.
FIG. 8 shows a rod (b) fitted in the frame (a) of the slave joint portion. (A) is a perspective view, and (b) is a cross-sectional view.

Since the rod (b) is columnar in this way, the contact area with the stile (a) fitted inside is small as shown in FIG. 9, and therefore the stile (a) is deformed. It's easy to do. That is, when an external force acts on the slave joint portion of the folding door while the rod (b) is lowered and fitted in the guide groove of the lower frame, the portion in point contact is deformed by the pressure contact force.

Further, when the tip of the lowered rod (b) hits the lower frame, the rod (b) is bent and deformed as shown in FIG. 10, and a large bending stress is generated. Therefore, the pressure contact surface pressure acting on the contact point (c) at the lower end of the stile (a) becomes very high, and the region is deformed around the contact point (c).

The "folding door device" according to Japanese Patent Application Laid-Open No. 2006-37424 includes a seal body that can rotate.
That is, when the folding door is extended and closed, the seal body stands up and comes into contact with the lower stile of the folding door, so that airtightness and watertightness are maintained. Here, as a method of standing the seal body, a rotary seal body is used so that it is performed by a rotary motion, and a sealing material is provided along the contact surface of the rotary seal body.

In order for the seal body provided in this folding door device to rotate and stand up to exert the sealing function, the protruding length of the rod that presses and rotates the seal body must be appropriate. If the protruding length of the rod is short, the rotation angle of the sealing body is too small to seal correctly. On the contrary, if the protruding length of the rod is too long, the lower end of the protruding rod comes into contact with the lower frame when the folding door extends and the slave joint portion protruding from the rail fits when the frontage is closed.
"Folding door device" according to Japanese Patent Application Laid-Open No. 2006-37424

As described above, the conventional folding door device has the above-mentioned problems. The problem to be solved by the present invention is this problem. That is, when the rod attached to the slave joint portion of the folding door descends, the protruding length can be easily adjusted to be appropriate, and the rod and the stile of the slave joint portion into which the rod fits can be easily adjusted. Provided is a folding door rod that is not deformed.

The folding door device targeted by the present invention is configured by mounting a folding door in which a plurality of panels are connected via a joint portion on a frame body, and has the same basic structure as the conventional one.
A guide groove is provided along the lower frame, and a slider attached to the lower end of the main joint of the folding door is loosely fitted and slides in the guide groove, and the slave joint is moved up and down by operating the handle. The rod is provided with a rod that can be lowered so that an appropriate length protrudes downward and is locked.

The rod has a connecting rod that is attached to a slave joint and moves up and down (up and down) in conjunction with a handle, and the rod is screwed and attached to a screw formed at the lower end of the connecting rod. ing. By rotating the rod, the amount of protrusion of the slave joint portion from the lower end of the stile is adjusted.
Then, the rod is fitted into a hole provided so as to penetrate the reinforcing material, and the reinforcing material has a cross section such as a square shape and is fitted to the stile in surface contact. A groove extending in the longitudinal direction is provided along the inner peripheral surface of the through hole.

A locking piece is provided at the upper end of the rod so as to project from the side surface, and the locking piece can be moved by fitting into the groove provided on the inner peripheral surface of the through hole. The reinforcing material is fitted into the internal space of the stile and attached, a rod is fitted into the through hole of this reinforcing material, and the screw hole formed at the upper end of the rod is screwed with the screw provided at the lower end of the connecting rod. Are connected. The rod functions as a stopper so that the reinforcing material does not raise the rod by rotating the locking piece provided at the upper end to a position where it can be removed from the groove. Further, a locking portion is provided at the lower end portion so that the reinforcing material does not fall off from the rod.

In the folding door device of the present invention, a reinforcing material is fitted in the frame space of the slave joint portion, and a rod is fitted in a hole provided in the reinforcing material. The reinforcing material has a cross section such as a square so as to be in a surface contact state with the stile space. Therefore, when an external force acts on the lower end of the rod protruding downward from the stile, a large bending stress acts on the rod and the rod is not deformed.
Further, since the rod fits into the hole of the reinforcing material and the reinforcing material has a cross section such as a square shape and fits into the space of the stile, the force acting on the rod does not act directly on the stile, so that the stile is locally deformed. There is nothing to do.

A screw hole is formed in the rod, and a screw portion provided at the lower end portion of the connecting rod is screwed into the screw hole, so that the rod is connected to the lower end portion of the connecting rod. Therefore, the rod can rotate while being fitted and attached to the frame of the slave joint portion, and the protruding length of the lower end portion thereof is adjusted. Further, since the locking piece provided at the upper end is locked to the upper end of the reinforcing material, the reinforcing material does not rise along the rod, and is supported by the locking portion provided at the lower end of the rod. , Will not fall out of the rod.

It is an external view when the folding door device is not locked, and shows a front view, a side view, and a plan view, respectively. It is an external view when the rod of the folding door device is lowered and locked, and shows a front view and a side view. Detailed cross-sectional view showing the lower end of the folding door device when the rod is not lowered. Detailed cross-sectional view showing the lower end of the folding door device when the rod is lowered. (A) is a rod and a reinforcing material, (b) is a cross-sectional view of (b) when the rod is fitted in the reinforcing material and is incorporated in the member constituting the locking device of the folding door. (A) is a cross-sectional view of (a) when a rod fitted to a reinforcing material is screwed into a screw at the lower end of a connecting rod and connected. A cross-sectional view showing a rod mounted in the space of a stile. (A) is a conventional example in which the rod is directly fitted and attached to the stile space, and (b) is a cross-sectional view of (a). A contact state indicating a conventional rod fitted in a stile space. When the rod bends and local stress is generated at the contact point.

1 and 2 show a folding door 1 serving as a folding door according to the present invention. The folding door 1 is connected so that the two panels 2a and 2b can be folded via the slave joint portion 3, and the main joint portions 4a and 4b are connected to both sides of the folding door 1 so that the main joint portion 4a, Suspension wheels 5a and 5b that move on the rail portion of the upper frame are attached to the upper end of 4b, and sliders 6a and 6b that move the guide groove of the lower frame are attached to the lower ends of the main joint portions 4a and 4b.
The folding door 1 shown in the figure is a form of a folding door composed of two panels 2a and 2b.

The folding doors 1 and 1 are attached to the frontage in pairs, and when the frontage is opened, the handle 7 attached to the slave joint portion 3 is pressed, and the slave joint portion 3 is the lower frame and the upper frame of the frame body. Overhangs outward from.
Then, when the frontage is closed, the two panels 2a and 2b folded by pulling the handle 7 extend straight. If the handle 7 is rotated to lock the straightly extended folding door 1, the rod 8 attached to the slave joint 3 is lowered, and the lower end of the rod 8 is provided in the guide groove provided in the lower frame 9. Fit in.

The folding door device of the present invention shown in FIG. 2 is locked in a state where the folding door 1 is extended straight, and the slave joint portion 3 is fixed so as not to project from the lower frame 9 and the upper frame 10. At the same time, it is sealed by the rotating member 11 attached to the lower frame 9 and closed so as not to form a gap with the folding door 1.
The slave joint portion 3 is provided with a connecting rod 12 that can be moved up and down by operating the handle, and the rod 8 is connected to the lower end of the connecting rod 12.

FIG. 1 shows a case where the rod 8 is raised, and FIG. 2 shows a case where the rod 8 is lowered and the lower end portion of the rod 8 is lowered to fit into the guide groove 13 provided in the lower frame 9. .. Then, at the same time as the rod 8 descends, the rotating member 11 attached to the lower frame 9 rotates, and the sealing material provided on the rotating member 11 comes into contact with the surface of the straightly extended folding door 1.
FIG. 3 shows a cross-sectional view of the lower end portion of the slave joint portion 3 and the lower frame 9 when the rod 8 is raised, and FIG. 4 shows the lower end portion and the lower portion of the slave joint portion 3 when the rod 8 is lowered. A cross-sectional view of the frame 9 is shown.

The rotating member 11 is pivotally supported by a shaft 14 provided on the lower frame 9, and has a holding piece 15 on one side of the shaft 14 and a sealing material 16 on the other side. If the rod 8 descends, the rod 8 presses the holding piece 15 and the rotating member 11 rotates counterclockwise. Then, the sealing material 16 comes into contact with the surface of the folding door 1.
5A and 5B represent a rod 8 and a reinforcing material 17, in which FIG. 5A is a perspective view when the rod 8 and the reinforcing material 17 are separated from each other, and FIG. 5B is a perspective view when the rod 8 is fitted in the reinforcing material 17. c) shows a cross-sectional view when the rod 8 is fitted in the reinforcing material 17.

The rod 8 is composed of a cylinder 18 and a lower end portion 20, and the cylinder body 18 has a screw hole 21 at the upper end portion, and locking pieces 22 and 22 project to the outer peripheral surface at the upper end portion. The lower end 20 has a pointed shape.
The reinforcing member 17 has a square cross section, and a hole 23 penetrates through the central shaft portion, and recessed grooves 24, 24 form a pair and extend in the longitudinal direction on the inner peripheral surface of the hole 23. ing.

FIG. 5B shows a case where the rod 8 is incorporated in the reinforcing member 17, and the cylindrical body 18 fits into the hole 23. In this case, the locking pieces 22 and 22 formed at the upper end of the cylindrical body 18 fit into the concave grooves 24 and 24 and move, so that the rod fits into the hole 23 of the reinforcing material 17 as shown in (b). 8 is incorporated. As shown in the cross section in (c), the cylindrical body 18 fits into the hole 23, and the locking pieces 22 and 22 protruding to the outer circumference fit into the concave grooves 24 and 24.

FIG. 6 shows a case where the rod 8 is combined with the reinforcing member 17 and the rod 8 is connected to the connecting rod 12. The connecting rod 12 has a screw 25 at its lower end, and the screw 25 is screwed into a screw hole 21 provided in the cylindrical body 18 to be connected.
By the way, in the rod 8, the connecting rod 12 moves up and down by operating the handle 7, but when descending, the lower end portion 20 is fitted into the guide groove 13 as shown in FIGS. 3 and 4. , The rotating material 11 must rotate and the sealing material 16 must come into contact with the surface of the folding door 1.
Then, in the raised state, it is necessary that the tip of the lower end portion 20 does not come into contact with the lower frame 9 when opening and closing the folding door 1.

Therefore, the height of the lower end of the rod 8 can be adjusted by increasing or decreasing the length (region) of the rod 8 screwed into the screw 25 provided at the lower end of the connecting rod 12 by rotating. You can. The reinforcing member 17 is held so as not to fall off or rise from the rod 8 having an appropriate height. That is, by rotating the locking pieces 22 and 22 by 90 ° and removing them from the positions of the concave grooves 24 and 24, the reinforcing material 17 does not hit the locking pieces 22 and 22 and rises, and the lower end portion 20 By hitting and holding the locking portion, it will not come off.

FIG. 7 is a cross-sectional view when the rod 8 is attached to the stile 26 of the slave joint portion 3. The rod 8 fits the columnar body 18 into the hole 23 of the reinforcing material 17, and the reinforcing material 17 having a square cross section fits into the internal space provided in the stile 26, so that each side surface of the reinforcing material 17 is in surface contact. have.
Therefore, when the folding door 1 is extended and closed, if an external force acts on the slave joint portion 3, a large force acts on the rod 8 by fitting the folding door 1 into the guide groove 13. However, the rod 8 fits into the reinforcing material 17 and can make surface contact with the stile 26 instead of local contact.

The load acting on the stile 26 is reduced with respect to the external force acting on the orido 1, and the stile 26 is not deformed or damaged. The embodiment shown in FIGS. 1 and 2 is a folding door 1 composed of two panels 2a, 2b, but a folding door provided with a large number of panels 2a, 2b ... Can also be targeted. In this case, the rods 8, 8 ... Are attached to the respective slave joint portions 3, 3 ..., But the structure is the same as that shown in the embodiment.

1 Folded door 2 Panel 3 Slave joint 4 Main joint 5 Suspension wheel 6 Slider 7 Handle 8 Rod 9 Lower frame
10 Upper frame
11 Rotating material
12 connecting rod
13 Guide groove
14 axes
15 Presser piece
16 Sealing material
17 Reinforcing material
18 Cylinder
20 Lower end
21 screw holes
22 Locking piece
23 holes
24 concave groove
25 screws
26 stile
27 Locking part

Claims (3)

In a folding door constructed by connecting a plurality of panels, a connecting rod that moves up and down by operating a handle is attached to the stile space of the slave joint that projects from the upper and lower frames when folded, and the lower end of the connecting rod is attached. The folding door extends and fits into the guide groove of the lower frame to lock the rods, which are connected via screws, and the rods are made of a reinforcing material having a cross-sectional shape that allows surface contact with the inner surface of the stile space. A folding door rod that is characterized by being fitted into a hole. The rod consists of a cylindrical body that fits into the hole of the reinforcing material and a lower end that fits into the guide groove of the lower frame. The folding door rod according to claim 1, which is provided with a stopper. The folding door rod according to claim 1 or 2, wherein the reinforcing material has a square cross section so that it can come into surface contact with the inner surface of the stile space, and the stile space also has a square cross section.

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