JPH035667Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a device that maintains the closed state of a folding door in which a plurality of panels are foldably connected when the folding door is closed.

[Background technology]

Conventionally, a runner is provided at the top of a folding door that is constructed by connecting multiple panels so that it can be folded freely, and this runner is attached to a rail so that it can run freely, and when the folding door is folded, it maintains the closed state. In order to do this, it is known that a latch roller is elastically protruded from the upper part of the folding door so that the latch roller is inserted into the rail when the folding door is closed. By the way, conventionally, a female threaded cylinder 5 which is vertically movable and is elastically biased upward is simply provided at a position different from the position where the runner is provided at the top of the folding door, and a threaded rod 6 is attached to the female threaded cylinder 5. As shown in Fig. 10, there is a latch roller 7 that is screwed together so that it can move vertically and is inserted into the rail when the folding door is closed on the top of the threaded rod 6.
It was simply installed so that it could be rotated horizontally. The reason why the threaded rod 6 is screwed together so that it can move vertically is that the protruding position of the latch roller 7 can be adjusted by rotating the threaded rod 6. The reason why the latch roller 7 is attached to the upper part of the threaded rod 6 so that it can rotate horizontally is that when the latch roller 7 hits the rail as the folding door is opened and closed, the latch roller 7 hits the lower end of the rail. This is to enable the latch roller 7 to rotate horizontally and smoothly move in and out of the rail in case of a problem. However, in the conventional method, when the latch roller 7 moves in and out of the rail during use, the threaded rod 6 rotates and the level of the latch roller 7 changes, causing the latch roller to bounce into the rail. There was a problem in which the power-on state changed inadvertently during use.

[Purpose of invention]

The present invention was devised in view of the above points, and its purpose is to prevent the threaded rod from rotating as the latch roller rotates, and to prevent the latch roller from changing its level during use. To provide a device for maintaining a closed state of a folding door, which can easily change the level of a latch roller when the level of the latch roller is desired to be changed without fear that the level of the latch roller has changed.

[Disclosure of invention]

The device for maintaining the closed state of a folding door of the present invention is provided with a runner 3 on the top of a folding door 2 constructed by connecting a plurality of panels 1 so as to be foldable, and attaching the runner 3 to a rail 4 so as to be freely movable. A female threaded cylinder 5 is provided at a position different from the position where the upper runner 3 of 2 is provided, and is vertically movable and elastically biased upward, and a threaded rod 6 is screwed into this female threaded cylinder 5 so as to be vertically movable. A latch roller 7 is provided on the upper part of the threaded rod 6 so as to be horizontally rotatable, and the latch roller 7 is inserted into the rail 4 when the folding door 2 is closed. Circular part 8
The elastic member 9 is provided with an elastic member 9 for preventing rotation that comes into elastic contact with the non-circular portion 8 of the threaded rod 6 even if the threaded rod 6 attempts to rotate with the rotation of the latch roller 7. 9 prevents the threaded rod 6 from rotating inadvertently, and when it is desired to change the level of the latch roller 7, the threaded rod 6 must be strongly pushed against the elastic member 9. By rotating, the level of the latch roller 7 is adjusted, thereby achieving the above-mentioned object of the present invention.

The present invention will be explained in detail below with reference to Examples. 2 in the figure is a folding door, and the folding door 2 is constructed by connecting a plurality of panels 1 so as to be foldable.
The panels 1 are connected to each other by a pivot mechanism as shown in FIG. 3 in a foldable manner. The pivot mechanism includes a bearing portion 1 extending from the side end surface of the panel 1.
A shaft cylinder part 12 provided on both sides of the opening of a hinge body 11 having a U-shaped cross section is rotatably supported at 0, and a middle cylinder 13 is inserted into the hinge body 11. At the top of the part indicated by A in Fig. 2, there is a runner 3.
is attached, and the latch roller 7 is attached to the part indicated by B.
can be installed. In addition, in the right half of Fig. 2, only the mounting part of the runner 3 shown by A is shown, but in the right half of Fig. 2, the part shown by B is between the part shown by A and the part shown by A. is omitted from the drawing. Runner 3 is rail 4
It is installed inside so that it can be moved freely. The portion to which the latch roller 7 is attached projects outward from the rail 4 when the folding door 2 is folded, and extends along the rail 4 when the folding door 2 is closed. The latch roller 7 is attached to the folding door 2 in the following configuration. A threaded rod 6 is attached to the female threaded portion 14 at the bottom of the female threaded tube 5.
The lower male threaded part 15 of the threaded rod 6 is screwed together, the upper non-circular part 8 of the threaded rod 6 is made to protrude above the female threaded cylinder 5, and this non-circular part 8 is further attached to the mounting plate 16.
A latch roller 7 is attached to the upper end of the threaded rod 6 so as to be horizontally rotatable. An elastic member 9 that comes into elastic contact with the non-circular portion 8 is provided in the hole 17 of the mounting plate 16 into which the non-circular portion 8 is inserted to prevent the threaded rod 6 from rotating inadvertently. Here, the mesh tube 5 is the middle tube 1 inserted into the hinge body 11.
3, and a coil spring 19 is interposed between a coil spring fixing pin 18 provided in the middle cylinder 13 and the lower surface of the female thread cylinder 5. Further, the mounting plate 16 is provided with a hole 20.
A bolt inserted through this hole 20 is screwed into the upper part of the shaft cylinder part 12, and as a result, the female thread cylinder 5 is elastically urged upward by the coil spring 19 and comes into elastic contact with the mounting plate 16. be. A lower plate 21 is also arranged on the lower surface side of the hinge body 11, and is attached to the lower part of the shaft cylinder portion 12 with bolts or the like. In the portion where the latch roller 7 is attached, handles 22 and 23 may be provided on the middle cylinder 13 and the hinge body 11, respectively, if necessary. Also, runner 3 of folding door 2
At the bottom of the part where the
4 protrudes, and this lower guide 24 is fitted into a lower rail 25 so as to be freely movable. When the folding door 1 is closed, the latch roller 7 that has protruded outside the rail 4 hits the guide 26 on one side of the lower surface of the rail 4, and is pushed downward against the coil spring 19 while the latch roller 7 protrudes from the rail 4. The bullet enters into the folding door 4 and stays in the closed state of the folding door 2. On the other hand, in order to open the folding door 2, an external force is applied to the pivot portion between the panels 1 having the latch rollers 7 to cause the latch rollers 7 to jump out from the rail 4, thereby folding and opening the folding door 2. . Even if the latch rollers 7 rotate here, the elastic member 9 is in elastic contact with the non-circular portion 8 of the threaded rod 6, so the threaded rod 6 will not rotate as the latch rollers 7 rotate. . On the other hand, latch roller 7
To adjust the level of the female threaded cylinder 5, turn the non-circular part 8 of the threaded rod 6 with a jig such as a wrench.
The level is adjusted by moving the threaded rod 6 up and down. In this case, the female threaded cylinder 5 is inserted into the recess 27 of the middle cylinder 13 so that the female threaded cylinder 5 does not rotate together.
The protrusion 28 is fitted into it.

[Effect of idea]

In the present invention, as described above, the threaded rod is provided with a non-circular portion with a non-circular horizontal cross section, and an elastic member for preventing rotation that comes into elastic contact with the non-circular portion is provided. Even if the threaded rod attempts to rotate as it rotates, the elastic member in elastic contact with the non-circular portion prevents the threaded rod from rotating.As a result, the threaded rod may inadvertently move up and down during use and become latched. The level of the rollers does not change, and the latch rollers can be kept in the set insertion state into the rail, and the folding door will remain closed over time. Also, the latch roller can be moved in and out of the rail with a certain amount of operating force. Moreover, when it is desired to adjust the level of the latch roller, the level of the latch roller can be easily adjusted by rotating the threaded rod against the spring force of the elastic member.

[Brief explanation of the drawing]

Figures 1a, b, and c are horizontal cross-sectional views showing the state in which the threaded rod is prevented from rotating by the elastic member in the closed state holding device for a folding door of the present invention, a partially cutaway front view, and X-X in Figure 1b. Figure 2 is a horizontal cross-sectional view of the folding door; Figures 3 a and b are cross-sectional views of the parts that protrude from the rails among the connecting parts of the same panels, and cross-sectional views of the parts that do not protrude from the rails; Figure 4 is a vertical sectional view of the folding door, Figure 5a,
b and c are a plan view of the mounting plate used in the present invention, a sectional view taken along line aY-Y in Figure 5, and aZ-Z in Figure 5.
6 a and b are a plan view and a front view of the threaded rod, FIGS. 7 a and b are a plan view and a sectional view of the female threaded tube, and FIGS. 8 a and b are a plan view and a front view of the latch roller. 9a, b, and c are plan views, front views, and side views of the middle tube, and FIG. 10 shows a state in which a conventional threaded rod with latch rollers is screwed into a female threaded tube. It is an explanatory diagram, 1 is a panel, 2 is a folding door,
3 is a runner, 4 is a rail, 5 is a female threaded cylinder, 6 is a threaded rod, 7 is a latch roller, 8 is a non-circular portion, and 9 is an elastic member.

Claims (1)

[Scope of utility model registration request] A runner is provided at the top of a folding door constructed by connecting multiple panels in a foldable manner, and the runner is attached to a rail so that it can run freely, and the runner at the top of the folding door can be moved up and down to a different position from the installed position. A female thread cylinder is provided that is elastically biased upward.
A threaded rod is screwed into this female threaded cylinder so that it can move up and down,
A latch roller is installed on the top of the threaded rod so that it can rotate horizontally and enters into the rail when the folding door is closed, and a non-circular part with a non-circular horizontal cross section is provided on the threaded rod, and the roller makes elastic contact with the non-circular part. A device for keeping a folding door closed, comprising an elastic member for prevention.