JPH0624187U - Lower rail groove closing device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The groove of the lower rail that guides the door can be opened and closed by itself when the door is opened and closed. Moreover, the structure is simple and compact, and the closed state Providing a highly airtight and watertight groove closing device. [Structure] Closure 7 that covers groove 10 of lower rail 4
Is pivotally attached via a hinge 12 so as to be openable and closable, a rotation assisting tool 8 projects from the end of the closing body, and a rotation control body 9 having a guide surface inclined at a rake angle at the lower end of the door frame 5 Is provided, and the rotation control body has a size that does not protrude from the summing surface of the door frame. The guide surface hits the rotation assisting tool to scoop up and rotate the rotation assisting tool to raise the closing body.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for closing a groove portion of a lower rail on which a folding door or the like is guided.

[0002]

[Prior art]

 The folding door is composed of a plurality of panels that can be bent, and is suspended by an upper rail to open and close. A slider provided at the lower end is loosely fitted in the groove of the lower rail. Therefore, the slider slides along the groove along with the opening and closing of the folding door and guides the folding door. Therefore, when the folding door is extended and the frontage is closed, the folding door is located above the groove portion of the lower rail, so that the groove portion is in the closed state, but if it is folded and stored. The groove portion is in an open state.

The presence of such an open groove portion on the floor surface not only hinders the opening and closing of the folding door due to the entry of dust or the like, but the groove portion itself obstructs passage. Therefore, when the folding door is folded, it is desirable that the opening groove portion be closed. As a conventional technique, there is known a "gap sealing device for opening frame" according to Japanese Patent Laid-Open No. 3-224986. In this device, the fixed frame (lower rail) part and the blocking movable frame (groove lid) are connected by a tilting arm (link), and the blocking movable frame can be moved up and down by turning the tilting arm. However, in order to use this device, it is necessary to make the depth of the lower rail deep, so it is easy to be constrained in construction, and because the link mechanism is adopted, the structure itself becomes complicated and the stability of the function and Leave a problem for maintenance.

As another conventional example, there is a "folding shutter" according to Japanese Patent Laid-Open No. 4-85476, but the groove closing device of the folding shutter is a guide at a position opposite to the protruding side of the door unit. The lid plate is rotatably fixed to the rail, and a pressing tool having an inclined contact surface is provided at the lower end of the door body on the moving side. Since the above-mentioned pressing tool is provided so as to project from the lower end assembling surface on the moving side (door end), a space (space) for housing the pressing tool is required when completely closing the door body, and the lower end of the vertical frame. When some parts have to be cut out and are composed of multiple units, the moving sides of each door cannot come into contact with each other because of the pressing tool. Further, since the lid plate is rotated by contact between the pressing tool and the lid plate, smooth rotation cannot be performed unless the inclination angle of the pressing tool is long and long, and as a result, the pressing tool is enlarged. is doing.

[0005]

[Problems to be solved by the present invention]

 As described above, the conventional groove closing device has the above problems. The problems to be solved by the present invention are these problems.The structure is simple, the size is small, no member protruding from the door end surface is provided, and the opening / closing function of the closing body is stable, and the door is opened. Provided is a device intended to improve watertightness and airtightness in a closed state.

[0006]

[Means for Solving the Problems]

 A groove closing device for a lower rail according to the present invention rotatably mounts a closing body covering the groove on a hinge through a hinge, and a turning assisting tool is provided at an end of the closing body. The rotation assisting tool is an elongated rod-like body protruding from the end. Here, when the lower rail is long, the closing body has a split type structure, and the rotation assisting tool is provided in each closing body. On the other hand, a rotation control body is provided at the lower end of the door tip, and the closing body is rotated by hitting the rotation assisting tool as the door moves, and the rotation control body forms an inclined guide surface. ing.

The guide surface is inclined with a rake angle extending downward, but the tip of the guide surface does not project from the door tip surface, and the lower end of the rotation control body is loosely fitted in the groove of the lower rail. In this state, the rotation control body with an inclined guide surface is attached to the lower end of the door to extend the shielding plate to the groove without leaving a gap between the guide surface and the above gap. Prevent. That is, the rotation control body is attached to the lower end of the door end by arranging the shielding plate on the opposite side where the closing body stands. The rotation control body also functions as a conventional slider. Here, the guide surface has a function of scooping up the rotation assisting tool and rotating it.

[0008]

[Action]

 The closing body which is attached to the groove portion of the lower rail to close the groove projects a rotation assisting tool at its end portion. Therefore, when the door body is moved, the rotation control body provided at the lower end of the door end hits the above-described rotation assist tool, slides the inclined guide surface so as to scoop up the rotation assist tool, and The closing body swivels and opens quickly. Since the rotation control body does not protrude from the door end, when the door body is completely closed, it closely contacts the vertical rail or the door end of another door body without a gap. On the contrary, when the door is opened, the closing body collapses due to its own weight to close the groove. Hereinafter, embodiments according to the present invention will be described in detail with reference to the drawings.

[0009]

【Example】

 A folding door will be described as an example of the groove closing device of the lower rail. FIG. 5 shows a general folding door device. As is well known, the folding door device is constructed by connecting a plurality of panels 1, 1 ... Bendably via joints 2, 2 ,. The rail 3 is suspended via a traveling tool (not shown), and the lower end is guided by the lower rail 4. A door frame 5 is provided at the tip of the folding door, and a hanging frame 6 is provided at the hanging base side. By pressing the door frame 5 toward the hanging base side, each panel 1, 1 ... Is folded and stored. .

FIG. 1 shows a groove closing device for a lower rail in a state where the folding door is folded. In the figure, 7 is a closing body, 8 is a rotation assisting tool, and 9 is a rotation control body. The closing body 7 is attached to the lower rail 4, the groove portion 10 of the lower rail 4 is closed, and the folding door. When is extended, the closing body 7 stands up and opens the groove 10. The closing body 7 is a plate-shaped body having a predetermined width, and can be attached to the receiver 11 via a hinge 12 and opened and closed. Moreover, the receiver 11 is detachable from the lower rail 4 with screws.

The lower rail 4 is composed of an outer member 13 and an inner member 14. The inner member 14 is put in the outer member 13 having a substantially U-shaped cross section, and both edges 15a and 15b forming an inverted U-shaped cross section are the outer member. The side piece 13 is covered, and the edge 15 and the side piece of the outer member 13 are welded. Further, the above-mentioned receiver 11 is provided with a support 16 having a cushion material adhered on the side of the edge 15b, and is installed in the inner member 14 and screwed. FIG. 1 shows the case where the closing body 7 is collapsed to close the groove portion 10, and the closing body 7 is supported by the support 16 and the tip end of the rotation assisting tool 8 protruding from the end portion is located at the lower end of the door end frame 5. It is in a state of being close to the attached rotation control body 9.

FIG. 2 shows the details of the rotation control body 9. Although the rotation control body 9 is not necessarily limited to the shape shown in the figure, it has a guide surface 17 inclined at a rake angle, and the tip of the guide surface 17 has a size that does not protrude from the door end frame 5. . Here, although the guide surface 17 is formed as a flat surface, it may be formed as a curved surface. Further, the rotation control body 9 is attached to the lower end of the door frame 5 by forming a shield plate 19 on the side opposite to the side surface 18, but the shield plate 19 is extended to the lower end of the rotation control body 9. Thus, the guide surface 17 cannot be seen from the shield plate 19 side.

FIG. 3 a is a perspective view showing the groove closing device, but the closing body 7 is closed and the rotation assisting tool 8 is close to the guide surface 17 of the rotation control body 9. Therefore, when the folding door is extended to close the frontage, and the door frame 5 is moved, the tip of the rotation assisting tool 8 comes into contact with the guide surface 17 of the rotation control body 9 and the rotation assisting tool 8 is moved. Is scooped up along the guide surface 17. Therefore, the closing body 7 pivots around the hinge 12, opens the groove portion 10 of the lower rail 4 as shown in FIG. 3b, and the closing body 7 stands up. The rotation control body 9 slides in the groove 10 as a slider to extend the folding door along the rail. Then, when the closing body 7 is of the split type as shown in FIG. 3B, the closing bodies 7, 7, ... Are sequentially opened as the rotation control body 9 moves.

FIG. 4 shows a state in which the closing body 7 stands up and the groove 10 is opened. In this case, the closing body 7 does not stand upright, but leans against the rotation control body 9 and is rotated. If the motion control body 9 retracts, it can fall down by its own weight. When the closing body 7 is divided into a plurality of pieces and attached, the rotation assisting tool 8 at the end of each closing body 7 is sequentially separated from the rotation control body 9 to close the groove 10. When folded and closed, the rotation assisting device functions as a guide so that it can smoothly move to the upright portion of the next closed body without hitting the next closed body and getting caught. As described above, in the groove closing device of the present invention, the rotation assisting tool is provided at the end of the closing body axially attached to the lower rail, and the lower end of the door frame has a guide surface. With the motion control unit attached, the following effects can be obtained.

[0015]

[Effect of device]

 By providing a closing body on the lower rail, stones, dust, etc. can be prevented from entering the groove, the door can be opened and closed smoothly, and the groove does not hinder traffic. When the door is closed, the closing body covers the gap at the boundary between the door and the lower rail, and as a result, the watertightness and airtightness are improved. Especially, since the rotation control body does not project from the summing surface of the door frame, there is no gap in the closed state, and a shield plate is provided on one side of the rotation control body attached to the lower end of the door frame. Since it extends up to, there is no gap in this part. Further, by forming this shield plate integrally with the guide surface, the strength of the guide portion is improved, and the rotation control body becomes strong, and thus it can sufficiently function as a slider.

In addition, according to the present invention, the closing body is provided with the rotation assisting tool, and the closing body is smoothly opened and closed through the rotation assisting tool, so that the closing body is directly engaged with the rotation control body. The rotation radius of the rotation assisting tool is reduced, the guide surface of the rotation control body and the space required for rotation are small, and the rotation control body is made compact. Further, even when the closing body is of a split type structure, the rotation control body is sequentially engaged with the rotation assisting tool and released sequentially, so that opening and closing of each closing body and opening and closing of the door body are not hindered. Can be done without. In addition, the action material at the upper end of the support of the lower rail cushions the impact when the closing body closes, and allows a quiet opening and closing operation.

[Brief description of drawings]

1 is an embodiment showing a closing device for a lower rail groove portion according to the present invention, in which a is a plan view, b is a front view, and c is a side view.

FIG. 2 is a specific example of a rotation control body.

FIG. 3 is a perspective view showing a closing device for the lower rail groove portion, where a is a closed body and b is a partially opened state.

FIG. 4 is a cross-sectional view in a state where the closing body is completely opened.

FIG. 5: Folding door device.

[Explanation of symbols]

 1 Panel 2 Joint 3 Upper Rail 4 Lower Rail 5 Door End Frame 6 Suspension Frame 7 Closing Body 8 Rotation Aid 9 Rotation Control Body 10 Groove 11 Receiving 12 Hinge 13 Outer Member 14 Inner Member 15 Edge 16 Support 17 Guide Surface 18 Side 19 Shield

Claims (2)

[Scope of utility model registration request] 1. A groove closing device for guiding a door at the time of opening and closing, wherein a closing member for covering the groove is pivotally attached via a hinge so as to be openable and closable.
A rotation assisting tool is projected from an end portion of the closing body, while a rotation control body is provided at a lower end of a door end frame of the door, and the rotation control body has a guide surface inclined at a rake angle. At the same time, the lower rail groove closing device is characterized in that the tip of the guide surface is formed at a position that does not protrude from the assembling surface of the door frame. 2. The groove closing device for a lower rail according to claim 1, wherein the rotation control body is provided with a shield plate on a surface opposite to a closing body rotation side.