JPS59118980A - Closing apparatus between door and floor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a door sealing device that protrudes from the bottom surface of the door when the door is closed and closes the gap between the bottom surface of the door and the floor.

As is well known, doors that are hinged to pillars or other building frames to open and close entrance/exit openings should have their lower surfaces lifted off the floor to maintain a gap between them, so that the lower surface of the door does not rub against the floor when opening and closing. There is. For this reason, even if the door is closed, cold air from outside or from the hallway can flow into the room through the gap between the bottom surface of the door and the floor, reducing the heating effect and preventing sound from leaking or in the event of a fire. Smoke enters the room from the hallway or outside, or conversely from the hallway or outside.

Also, in order to minimize this gap, auxiliary materials are sometimes installed on the floor so that the top surface is located directly below the bottom surface of the door, but even if it is installed, there is a small amount of auxiliary material so that the bottom surface of the door does not rub when opening and closing. Because it maintains a gap, gases such as air, smoke, etc.
The flow of sound cannot be completely blocked, and since the auxiliary material protrudes above the floor, there is a risk that people passing through the doorway may trip.

Therefore, in the present invention, when the open door is closed, just before the door is completely closed, the sealing material is actuated by the building frame such as the pillar to which the door is hinged, and the sealing material protrudes downward from the bottom of the door and drops to the floor. The edges are brought into elastic contact to close the gap between the lower surface of the door and the floor, and will be described below with reference to the illustrated embodiment.

In each figure, l indicates the main frame, which is the vertical frame of the pillar or door frame, C indicates the hinge, and 3 indicates the door hinged to the frame.

The closing device of the present invention includes a front door lock with at least an open bottom surface that is fixed to the bottom surface of the door, a sealing material S that is movably housed in a case, and a sealing material that is lifted up in the case. The spring 6 is connected to the sealing material S, and a part of the door protrudes from the hinge side of the door, contacts the building frame in front of the door when it closes, and is pushed into the case, resisting the spring 6. In each embodiment, the case is provided with a groove opening downward on the bottom surface of the door. It is fitted into the groove 3' and fixed in the groove with adhesive, screws, etc., but of course it may also be fixed on the lower surface of the door on the indoor side.

The sealing material S of each example includes an upper member g cut from an extruded material such as an aluminum alloy having an rH-shaped cross section and having a pocket groove gCL on the lower surface, and a seal piece 9 whose upper portion is held in the pocket groove gα. In this way, instead of molding the upper member and the seal piece separately and assembling them, for example, the upper part is thickly made of hard vinyl chloride resin, and the lower seal piece is made of soft vinyl chloride resin to give it elasticity. The upper and lower seal pieces, which are thinly molded from vinyl resin by coextrusion molding, may be integrally injection molded continuously from the same plastic. or,
When the sealing piece 9 is molded separately from the upper member, the sealing piece can be made of a foamed plastic sponge, a soft synthetic resin sheet, or mohair with fibers flocked on the adhesive surface.

In the embodiment shown in FIGS. 1 to 3, the spring 6 is made of piano wire bent downward into an arc, and has a folded portion 10 bent upward at the center of the spring. Then, insert the center part of the spring into the groove-shaped upper part of the sealing material from the top S-, and attach the sealing material to the spring before and after the folded part.
The end of the spring facing the side of the door hinge is attached to the top plate q′ of the case.
The other end of the spring is held by a holder // fixed with adhesive etc. under the case, and the other end of the spring is inserted into the blind hole /2' of the support piece 12 fixed under the top plate of the case with adhesive etc. Support both ends of the spring inside. The spring 6 has elasticity that allows the sealing material attached to the throat to be lifted in the case against the weight of the sealing material, and the end facing the hinge side of the door has a male screw 13. An operating member is hinged to this male thread, and a portion of the operating member is made to protrude outside from the hinged side of the door.

As a result, when the door is closed, the actuating member 7 is
The protruding end of the door contacts the main body and is then pushed toward the inside of the door. In this case, as mentioned above, the other end of the spring 6 protrudes into the dead end blind hole of the support piece 2, so the spring 6 curves downward, and the sealing material attached to the center of the spring 6 curves downward. S protrudes downward from the bottom of the door and closes the gap between the bottom of the door and the floor.

6- If a gap remains between the lower edge of the sealing material and the floor even when the door is completely closed, turn the actuating member in the direction of loosening to increase the amount of protrusion from the side of the hinge of the door until the door is completely closed. If the lower edge of the seal material contacts the floor before the door closes, turn the actuating member in the opposite direction to reduce the amount of protrusion and adjust so that the lower edge of the seal material contacts the floor when the door is completely closed. Bye.

Next, when the closed door is opened, the spring 6 tries to return to its original state and lifts the sealant S, so the lower edge of the sealant comes into sliding contact with the floor only at the beginning of the opening. When the outer end of the actuating member leaves the frame, the spring 6 completely returns to its original state.

In the embodiment shown in Figs. 4 to 6, the upper part of the sealing material is lifted up by being pivoted to the lower ends of a plurality of swinging rods whose upper ends are pivotally connected to the upper part of the case holder, and the weight of the sealing material is lifted by a spring 6. By lifting the door diagonally against the door, all of the swinging rods/41 are tilted in the same direction, and when the door is closed, the swinging rods swing in the vertical direction, and the sealing material moves downward in parallel. It is designed to protrude from the bottom of the case or door.

Therefore, the end of the sealing material 5 in the direction in which it is lifted diagonally by the spring 6 faces the hinge side of the door, and the case holder is fixed to the lower surface of the door, and the actuating member is attached to this end of the sealing material to open the door. One from the side of the butterfly! Make B stick out.

In this case, the actuating member 7 has one end pivotally attached to the end of the sealing material, and the other end includes an L-shaped rod 7α having a male thread, and a rod 7.
It consists of an adjustment piece 76 that is hinged to a male screw α and protrudes outward from the hinge side of the door. If the lower edge of the sealing material does not touch the floor even when the door is closed, turn adjustment piece b in the loosening direction to increase the amount of protrusion from the hinged side of the door.
On the other hand, if the lower edge of the sealing material comes into contact with the floor before the group is completely closed, the amount of protrusion can be reduced by turning it in the opposite direction. In order to prevent the actuating member 7 pivotally connected to the sealing material from lying down on the sealing material, a pin #' is installed on both side walls of the case, and a rod 'la is supported on the pin. Instead of the holder // of the first embodiment described above, the end of the spring B may be similarly supported by a pin //' at the bottom.

In this embodiment, when the actuating member is pushed into the building frame just before the door is closed, the sealing material resists the spring B and the rocking pieces /l, /
The door is swung vertically and moved downward in parallel, and when the door is closed, the lower edge touches the floor. Furthermore, when a closed door is opened, the sealing material immediately moves upward in parallel due to the traction force of the spring and leaves the floor.

In the illustrated embodiment, the sealing material is not directly attached to the lower end of the swinging rod/da, but the right-hand threaded portion/SL and the left-hand threaded portion l! The turnbuckle rod /Sf with iRi is held so that it can only be rotated, and the screws /SL' and /SR' are screwed into both threaded parts, and the lower end of one part of the swinging rod /44 is attached to the nut lSL', and the other is Oak) It is pivoted to #R'. To do this, use a tool such as a screwdriver to turn the end of the turnbuckle rod lS facing the hinge side of the door, and turn it to release) /SL', /3n''; f
:Move on the turnbuckle rod 15 in the approaching force direction or in the separating direction, so that some of the inclination angles of the drawing movement rods /11/4' are closer to vertical, and the other are moved away from vertical in the opposite direction, When the lower surface of the door and the upper surface of the floor are not parallel, the lower edge of the sealing material can be made parallel to the upper surface of the floor.

In order to hold the turnbuckle rod 15 in a sealing material so that it can only be rotated, in this embodiment two flanges/3'f are provided on the turnbuckle rod at the front and rear, and the holes and holes used in the embodiments of Figs. A similar holder/lf abuts the opposing surfaces (or back surfaces) of both tsuba and fixes the shield 1 on the bottom surface g' of the upper member by landing etc., so that it cannot move in the axial direction, but of course , but is not limited to this structure.

Thus, according to the present invention, just before the door closes, the sealing material f:
A closing device can be provided that is based on the gap created between the door and the floor by protruding downward from the bottom surface of the door. The sealing material of this closing device moves downward and comes into contact with the floor just before the door closes, and as soon as the door is opened, it moves upward with the restoring force of the spring and leaves the floor, so it hardly wears out even after long-term use. It does not, and even if it wears out, there is no problem because the protrusion of the actuating member can be increased so that it comes into contact with the floor.

10- Note that there are various door width dimensions, so as shown in the figure, the supporting piece saw in the first embodiment and the swinging piece /l that faces the free side of the door in the second embodiment are placed on this side of the case. If the dimensions of the case and sealing member are shorter than the width of the door, cut the case and sealing member from the end facing the free side of the door to match the width of the door. .

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing one embodiment of the present invention, Fig. 2 is a perspective view of the same in the attached state, Fig. 3 is a front view of the same, and Fig. 4 is another embodiment of the invention. A perspective view of a part of the example in cross section, Figure 5 is a front view of the same as above in a scattered village state, and Figure 6 is an enlarged longitudinal sectional side view of a part of the same as above. In the figure, 3 is a door, q is a case,
S indicates a sealing material, 6 indicates a spring, and RI indicates an operating member.

Claims (1)

[Claims] a case fixed along the bottom surface of the door with at least the bottom side open; a sealing material movably housed within the case;
The spring that suspends the sealing material inside the case is connected to the sealing material, and a portion of the material protrudes outward from the side of the hinged door, and just before the door closes, it touches the building frame to which the door is hinged and is inserted into the case. It is characterized by comprising an operating member that is pushed in and moves the sealing material downward in the case against a spring, causing the lower part of the sealing material to protrude downward from the bottom surface of the case and the door and come into contact with the floor. Closing device between the μm floor.