JPS5942792B2 - door airtight material - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an airtight member for a door that is crimped to the door to create an airtight state when the door is closed, and can greatly improve airtightness and sound insulation compared to conventional ones. The purpose of the present invention is to provide an airtight member for a door which is simple in structure and excellent in mass production.

An embodiment in which the airtight member of the present invention is attached to the upper frame of a door frame will be described below, but it goes without saying that the same can be applied to frames other than the upper frame.

1 to 4 show a first embodiment.

In FIGS. 1-2, reference numeral 1 designates the upper frame of a door frame 3 constituting an opening 2, and a holding piece 4 is provided on the opening 2 side by pultrusion molding as is known in the art.

5 is a door, which is swingably attached to the vertical frame of the door frame 3; 6 is an airtight member made of a flexible material such as rubber fitted to the holding piece 4 of the upper frame 1, and has a hollow cross section; It is formed into a strip.

In this airtight member 6, 7 is a hollow stone. Reference numeral 8 denotes an abutting portion against which the seal 9 attached to the periphery of the front end surface 5a of the door 5 is pressed when the door 5 is closed; It is designed to be recessed on the side.

Reference numeral 10.10a denotes a bent part formed by rapidly reducing the thickness of the cross-sectional shape at both sides of the contact part 8, and extends parallel to the contact part 8 in the longitudinal direction of the airtight member 6. C,
When the door 5 is closed, the abutment part 8 is bent at these bent parts 10° 10a
It is made to look like a concave crease.

Reference numeral 11 denotes a fin piece that projects in the direction of the door 5 from a position between the one bending part 10 and the abutment part 8 in the cross-sectional shape, which does not overlap with the abutment part 8, and when the door 5 is closed. Normally, the door frame 3 is slightly deflected toward the upper frame 1 side, that is, upwardly, so as not to interfere with the front end surface 5a, and when the door 5 is closed, the abutment part 8 touches the bent part 10.10a as described above. When it is depressed as a cut, it is tilted toward the contact part 8 side, and this fin piece 1
1 is adapted to be crimped onto the upper end surface 5b of the door 5.

The airtight member 6 constructed as described above is integrally molded by extrusion molding.

In the structure described above, when the door 5 is closed, the catch 9 of the door 5 inscribes and presses the abutment part 8 of the airtight member 6, and as a result, the abutment part 8 is made of the material of the airtight member 6. Due to its flexibility, the thin and straight bent parts 10 and 10a are recessed as creases, and it tightly adheres to the closure 9 without shaking over the entire length. Even if the material of 6 has a tendency to bend, a gap will not be created between it and the closure 9.

Further, when the contact portion 8 is recessed with the bending portion 10.10a as a crease as described above, the fin piece 11 is moved toward the door 5 side (lower side in this embodiment) as shown in FIGS. 3 and 4. tilted,
The tip of this fin piece 11 is hermetically pressed to the upper end surface 5b of the door 5.

Therefore, when the door 5 is closed, the airtight surface between the airtight member 6 and the door 5 becomes double, resulting in extremely good airtightness and sound insulation.

The operation of closing the door 5 can be performed with a relatively weak force because the Ka contact portion 8 is recessed with ease using the bent portions 10. can be done.

5 and 6 show a second embodiment, in which the fin piece does not protrude from the position between the bending part 10e above the contact part 8e and the bending part below the contact part 8e. The fin piece 12 is made to protrude from the position of the surface 10ae and the contact portion 8e.

This fin piece 12 protrudes diagonally downward, and when the still contacting part 8e of the airtight member 6e is depressed when the door 5e is closed, this fin piece 12 will be moved toward the door 5 side (as shown in FIG. 6). 6th
(right side in the figure), and the tip of this fin piece is hermetically pressed against the front end surface 5a of the door 5.

It should be noted that parts that are considered to have the same or equivalent configuration as those of the above embodiment are given the same reference numerals and the letter e, and redundant explanation will be omitted.

(Also, in the following embodiments, the alphabet "flg" is similarly added to omit duplicate explanations.

) Figures 1 and 8 show the third embodiment, in which the bending portions 10f on both sides
, the fin piece 11 from both positions between 10af and the contact portion 8f.
The fins 11f and 12f are made to protrude in a direction that does not overlap with the contact part 8f, and when the door 5f is closed, the airtight member 6f and the door 5f are triple-layered. It is possible to obtain extremely high airtightness and sound insulation properties.

Figures 9 and 10 show a fourth embodiment, which is used for a door 5g without a closure.

In the above embodiment, the bending portions are provided at two locations on both sides of the contact portion, but the bending portions may be provided at three or more locations.

As described above, in the present invention, thin bent portions are provided on both sides of the abutting portion against which the peripheral edge of the door is pressed, and at least one position between these bent portions and the abutting portion overlaps with the abutting portion. The fin piece has a cross-sectional shape in which the fin piece protrudes in the opposite direction, and when the door is closed, the abutment part is recessed with the bent parts on both sides as creases, and this deformation causes the tip of the fin piece to press against the end surface of the door. With this structure, when the door is closed, both the contact part of the airtight member and the fin piece can be airtightly crimped to the end face of the door, and the airtight surfaces between the airtight member and the door are double or more, creating an airtight seal. It can greatly improve the performance and sound insulation properties, and has a particularly great effect when used in soundproof doors.

Moreover, since the airtight surfaces are double or more as described above, there is an advantage that even if the door has a certain amount of twist, it can be closed airtightly.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view of the airtight member in the state shown in FIG. 1, FIG. 3 is a sectional view showing the operating state of FIG. 1, and FIG. 3 is a perspective view of the airtight member in the state shown in FIG. 3, FIGS. 5 and 6 are sectional views showing the second embodiment, FIGS. 7 and 8 are sectional views showing the third embodiment, and FIGS. FIG. 10 is a sectional view showing the fourth embodiment. 5...Door, 6...Airtight member, 8...
...Abutting part, 10°10a...Bending part, 11
．． 12...fin piece.

Claims (1)

[Claims] 1. In a door airtight material made of a flexible material such as rubber and formed into a hollow cross-section band, thin bent parts are provided on both sides of the abutting part against which the periphery of the door is pressed, and these bent parts and the abutting part are The cross-sectional shape is such that a fin protrudes from at least one position between the contact parts in a direction that does not overlap with the contact part, and when the door is closed, the contact part is recessed with the bent parts on both sides as creases, An airtight member for a door, which is configured such that the tip of the fin piece is pressed against the end surface of the door by this deformation.