JP6905897B2 - Airtight structure of the door - Google Patents

Description

The present invention relates to an airtight structure of a door.

For doors used in hotel guest rooms, door bottoms equipped with a so-called airtight mechanism are used to close the gap between the lower end of the door body in a fully closed position and the lower frame (slide) to ensure airtightness. In some cases. The airtight mechanism includes a long airtight member extending in the width direction of the door body, and when the door body is in the fully closed posture, the airtight member in the door bottom is lowered to lower the lower end and the lower frame of the door body ( The door is closed (see Patent Documents 1 to 3).

The airtight member forms an airtight structure at the lower end of the door body in a fully closed position in the width direction of the door body, but the long airtight member is pushed down by a leaf spring or a link mechanism. Therefore, it is difficult for a pushing force to act on both ends of the airtight member in the length direction, and a gap tends to occur at both ends of the airtight member in the length direction (both ends in the opening width direction).

The occurrence of gaps at both ends of the lower end of the door body in the fully closed posture in the width direction of the door body contributes to light leakage, and the generated gaps reduce airtightness and sound insulation. Therefore, in a door using a door bottom provided with an airtight mechanism, how to close the gaps that may occur at both ends in the width direction of the lower end is an issue.

Patent Document 3 relates to the watertight structure of the entrance door, and when the door body is fully closed, the lower airtight material provided at the lower end of the door body is brought into close contact with the corner airtight material provided at the lower end of the vertical airtight material from the side. The watertightness between the lower end and the lower frame is improved. In this product, the watertightness depends on the state of pressure welding between the vertical surface of the lower airtight material and the vertical surface of the corner airtight material, but if the degree of pressure welding decreases due to repeated opening and closing of the door body, the watertightness will decrease. On the other hand, if the degree of pressure welding is too large, resistance will occur when the door is closed. On the other hand, it is considered that the lower airtight material comes into contact with the upper surface of the corner airtight material when the door body is fully closed, but the lower airtight material at the lower end of the rotating door body is on the upper surface of the corner airtight material. Because of the sliding contact, each time the door body is opened and closed, a force that causes the lower airtight material to be rolled up acts, which may accelerate the deterioration of the corner airtight material or cause it to come off (particularly, the corner). When the airtight material is pasted on the lower frame).
JP 2012-184630 JP 2000-192753 Patent No. 3231615 Japanese Patent Application Laid-Open No. 10-280825

An object of the present invention is to provide an airtight structure of a door that prevents the formation of gaps that are disadvantageous for light shielding, airtightness, and sound insulation at both ends of the lower end when the door body is fully closed.

The technical means adopted by the present invention to solve such a problem is
A door frame consisting of an upper frame, left and right vertical frames, and a lower frame,
A door body that is rotatably provided on the door frame and is rotatably opened toward the first space from a fully closed posture that separates the first space from the second space.
It is an airtight structure of the door equipped with
At the lower end of the door body, a lower airtight member that moves up and down in conjunction with the opening and closing of the door body is provided.
A side airtight member is provided at the widthwise end of the vertical frame or the door body over the height direction.
Mounting holes are formed on the upper surface of the lower frame at both ends in the opening width direction.
A lower closing member is fitted into the mounting hole, and the lower closing member has an upper portion located above the upper surface of the lower frame and a lower portion located below the upper surface of the lower frame.
The lower end of the side airtight member is in close contact with the upper portion of the lower closing member at least when the door body is fully closed.
When the door body is in the fully closed posture, the lower airtight member is in close contact with the upper surface of the lower frame, and both ends of the lower airtight member in the opening width direction are the upper surface of the lower frame and the upper side of the lower closing member. Adhere to the part,
The airtight structure of the door.
In the present specification, the expressions of the first space side and the second space side are used as defining the relative positions between the parts of a certain member, and are not necessarily actually located in the first space and the second space. It does not mean that. For example, the first space side is the indoor side and the second space side is the outdoor side, but in the "first part located on the indoor side and the second part located on the outdoor side", the first part is actually the indoor side. It does not mean that it is located in.
When the vertical frame is provided with a side airtight member in the height direction, the lower end of the side airtight member is always in close contact with the second portion, and is in the width direction of the door body. When a side airtight member is provided at the end portion in the height direction, the lower end of the side airtight member comes into close contact with the second portion when the door body is fully closed.

In one embodiment, the upper surface of the lower closing member includes a first portion located on the first space side and a second portion located on the second space side.
The lower end of the side airtight member is in close contact with the second portion.
When the door body is in the fully closed posture, both ends of the lower airtight member in the opening width direction are in close contact with the upper surface of the lower frame and the first portion of the upper surface of the lower closing member.
In one embodiment, the first portion of the upper surface of the lower closing member is an inclined surface that inclines downward toward the first space, and the first space side edge of the first portion coincides with the upper surface of the lower frame. There is.

In one embodiment, the mounting hole comprises a bottom surface with which the bottom surface of the lower closing member abuts.
In one aspect, support members are provided at both ends in the opening width direction inside the lower frame, and the bottom surface is formed from the upper surface of the support member.

In one aspect, the mounting hole is formed near the second space on the upper surface of the lower frame, and a part of the side surface of the mounting hole is formed from the portion of the vertical frame.
In one embodiment, a part of the side surface of the mounting hole is formed from a notched edge formed by notching both ends in the opening width direction of the lower frame.

In one embodiment, the lower closing member is formed of an elastic body.
In one embodiment, the lower closing member is detachably fitted into the mounting hole.

In the present invention, when the door body is fully closed, the lower airtight member is in close contact with the upper surface of the lower frame, and both ends of the lower airtight member in the opening width direction are the upper surface of the lower frame and the upper surface of the lower closing member. Since it adheres to the first part of the door body, it is possible to reduce light leakage from both ends in the width direction of the lower end of the door body, and to improve the airtightness performance and sound insulation performance at both ends in the width direction of the lower end of the door body. Can be done.

When the door body is closed, the lower airtight member slides into contact with the lower closing member, but since the lower closing member (lower part) is fitted in the mounting hole, the lower closing member (especially when made of rubber) is used. Compared with the case where it is attached to the upper surface of the lower frame, it is possible to prevent the lower closing member from being rolled up due to repeated opening and closing of the door body.
When it is necessary to adjust the height position of the upper surface of the lower closing member at the site, the height position of the upper surface is adjusted by adjusting the height of the lower portion of the lower closing member. The height of the lower closing member can be easily adjusted as compared with the case where the lower closing member is directly attached to the upper surface of the lower frame.

It is a front view of the door which concerns on this embodiment. It is a front view of the door body which concerns on this embodiment. It is a vertical sectional view of the door body which concerns on this embodiment. It is sectional drawing of the door body which concerns on this embodiment. It is a partially enlarged view of FIG. It is a top view of the panel which concerns on this embodiment. It is a front view of the panel which concerns on this embodiment, (A) is a panel built in the door end side, (B) is a panel built in the middle. FIG. 7 is an enlarged view of a lower portion of the panel in the right figure and a side view thereof. It is a top view and the front view of the panel which concerns on other embodiments. It is a top view, a side view and a front view of the panel which concerns on other embodiments. It is a vertical sectional view of the door which concerns on this embodiment. It is an enlarged view of the lower part of FIG. (A) is a cross-sectional view of the door according to the present embodiment, (B) is a plan view of the door according to the present embodiment, and (C) is a front view of a lower portion of the door according to the present embodiment. (A) is a plan view of the door frame of the door according to the present embodiment, and (B) is a front view of a lower portion of the door frame according to the present embodiment. It is a vertical cross-sectional view of the lower part (position of the lower closing member) of the door frame of the door which concerns on this embodiment. It is a partial plan view of the door frame of the door which concerns on this embodiment, and shows one side (door tail side) in the opening width direction enlarged. It is a figure which shows the lower closing member which concerns on this embodiment. It is a figure which shows the support member of the lower closing member which concerns on this embodiment. It is a figure explaining the notch part formed in the end part in the length direction of the lower frame, (A) is the plan view of one side (door tail side) in the opening width direction of the lower frame, (B) is (A). The front view seen from the outdoor side, (C) is a view of (A) and (B) seen from the side.

FIG. 1 is a front view of the door according to the present embodiment, the left view is a front view seen from the outdoor side, and the right view is a front view seen from the indoor side. The door according to this embodiment is used as a door of a hotel guest room in one preferred embodiment without limitation. The door includes a vertically rectangular door frame 1 and a door body 2 that opens and closes an opening formed by the door frame 1. The door frame 1 is formed in a vertical rectangular shape from the upper frame 10, the door tip side vertical frame 11, the door tail side vertical frame 12, and the lower frame 13.

The outer surface of the door body 2 is formed of a first surface material 20 and a second surface material 21 of a thin steel plate which is a decorative steel plate, and a reinforcing panel 3 is built inside. More specifically, as shown in FIG. 2, on the four circumferences of the door body 2, a metal (typically steel) upper frame 4, a lower frame 5, a door tip side vertical frame 6, and a door tail side vertical frame are formed. 7 is provided in a four-circle shape, and four vertically long reinforcing panels 3 are arranged in parallel, located inside the four-circle-shaped frames 4, 5, 6, and 7. The four-circumferential frames 4, 5, 6, 7 and the four reinforcing panels 3 are, so to speak, the core material of the door body 2, and the first surface material 20 and the second surface material 21 are fixed around the core material.

As shown in FIGS. 3 and 4, the first surface material 20 includes a main surface portion 200 forming the outdoor side finding surface of the door body 2, and an upper side 201 and a lower side formed by bending a peripheral portion of the main surface portion 200. The second surface material 21 is composed of 202, side sides 203, and 204. It consists of a lower side 212 and side sides 213 and 214.

The upper surface of the door body 2 is formed from the upper side 201 of the first surface material 20 and the upper side 211 of the second surface material 21, and the door is formed from the side side 203 of the first surface material 20 and the side side 213 of the second surface material 21. The door end side prospective surface of the body 2 is formed, and the door tail side prospective surface of the door body 2 is formed from the side side 204 of the first surface material 20 and the side side 214 of the second surface material 21. The lower end of the door body 2 is open.

As shown in FIG. 1, the door body 2 is rotatably supported by the door tail side vertical frame 12 of the door frame 1 by a hinge 22 provided on the door tail side portion. Handles 23 are provided on the door end side portions of the outdoor side finding surface (main surface portion 200 of the first surface material 20) and the indoor side finding surface (main surface portion 210 of the second surface material 21) of the door body 2. , A lock (represented by a lock keyhole and a knob in FIG. 1) 24 is built in the vicinity of the handle 23. A door guard 25 is provided between the door end side portion of the indoor side finding surface of the door body 2 and the door end side vertical frame 11. A door closer 26 is provided between the upper portion of the door body 2 on the door end side of the indoor side finding surface and the upper frame 10.

As shown in FIG. 3, the upper frame 4 of the door body 2 is formed in a U-shape in cross section from the first finding surface 40, the second finding surface 41, and the upper surface 42. The upper portion of the main surface portion 200 of the first surface material 20 is fixed to the first finding surface 40 (for example, adhesion with an adhesive or adhesion with double-sided tape), and the second surface material 21 is attached to the second finding surface 41. The upper part of the main surface portion 210 is fixed (for example, adhesive is adhered or double-sided tape is adhered), and the upper side 201 of the first surface material 20 and the upper side 211 of the second surface material 21 are fixed to the upper surface 42 (for example). It may be fixed with a fastening member such as a rivet, or bonded with an adhesive or double-sided tape).

As shown in FIG. 3, the lower frame 5 of the door body 2 is formed in a U-shape in cross section from the first finding surface 50, the second finding surface 51, and the upper surface 52. The lower portion of the main surface portion 200 of the first surface material 20 is fixed to the first finding surface 50 (for example, adhesion by an adhesive or adhesion by double-sided tape), and the second surface material 21 is attached to the second finding surface 51. The lower portion of the main surface portion 210 of the above is fixed (for example, adhesive with an adhesive or adhesive with double-sided tape). The lower side 202 of the first surface material 20 extends so as to cover the lower end of the first finding surface 50 from below, and the lower side 212 of the second surface material 21 covers the lower end of the second finding surface 51 from below. It extends, and the dimensions of the lower sides 202 and 212 in the expected direction are small, and the lower surface of the door body 2 is open.

As shown in FIG. 4, the door end side vertical frame 6 of the door body 2 is formed in a U-shape in cross section from the first finding surface 60, the second finding surface 61, and the prospecting surface 62. .. The door end side portion of the main surface portion 200 of the first surface material 20 is fixed to the first finding surface 60 (for example, adhesion with an adhesive or adhesion with double-sided tape), and the second finding surface 61 has a second portion. 2 The door end side portion of the main surface portion 210 of the surface material 21 is fixed (for example, adhesive with an adhesive or adhesive with double-sided tape).

In the illustrated embodiment, the prospective surface 62 of the door end side vertical frame 6 is located on the side far from the door end side end surface of the door body 2, and the ends of the first finding surface 60 and the second finding surface 61 are the door ends. It is located on the side closer to the side end face. The side side 203 of the first surface material 20 extends in the prospective direction so as to cover the end portion of the first finding surface 60, and the side side 213 of the second surface material 21 covers the end portion of the second finding surface 61. It extends in the expected direction so as to cover it, and the tips of the side side 203 and the side side 213 are bent and fixed (bonded). The configuration of the door end side end portion of the door body 2 is not limited to the illustrated embodiment. For example, the door end side vertical frame 6 is provided with its prospective surface 62 on the door end side end surface of the door body 2. It may be arranged so as to be positioned so that the side sides 203 and 213 are brought into contact with the prospective surface 62.

As shown in FIG. 4, the door tail side vertical frame 7 of the door body 2 is formed in a U-shape in cross section from the first finding surface 70, the second finding surface 71, and the prospecting surface 72. .. The door tail side portion of the main surface portion 200 of the first surface material 20 is fixed to the first finding surface 70 (for example, bonding with an adhesive or bonding with double-sided tape), and the second finding surface 71 has a second portion. 2 The door tail side portion of the main surface portion 210 of the surface material 21 is fixed (for example, adhesive with an adhesive or adhesive with double-sided tape).

In the illustrated embodiment, the prospective surface 72 of the door tail side vertical frame 7 is located on the side close to the door tail side end surface of the door body 2, and the ends of the first finding surface 70 and the second finding surface 71 are the door tails. It is located on the side far from the side end face. The prospective surface 72 of the door tail side vertical frame 7 is separated from the door end side end surface of the door body 2, and the side side 204 of the first surface material 20 extends in the prospective direction in parallel with the prospective surface 72. The side side 214 of the second surface material 21 extends in the prospective direction in parallel with the prospective surface 72, and the tips of the side side 204 and the side side 214 are bent and fixed (bonded). The configuration of the door tail side end portion of the door body 2 is not limited to the illustrated mode, and for example, the side sides 204 and 214 may be brought into contact with the prospective surface 72.

As shown in FIG. 2, the reinforcing panel 3 is a long member extending between the upper frame 4 and the lower frame 5 over substantially the entire height of the door body 2. As shown in FIG. 6, the reinforcing panel 3 has a substantially rectangular shape from the left and right first finding surfaces 30, the second finding surface 31, and the left and right prospecting surfaces 32 and 33 having an opening in the middle in the width direction. It has a cross-sectional shape, and the internal space surrounded by the left and right first finding surfaces 30, the second finding surfaces 31, and the left and right prospecting surfaces 32 and 33 is filled with glass wool 34. The first finding surface 30, the second finding surface 31, and the left and right prospecting surfaces 32 and 33 of the reinforcing panel 3 are bent and formed from a metal (typically steel) plate body. By providing an opening extending in the height direction on the first finding surface 30 of the reinforcing panel 3, the glass wool 34 can be inserted into the reinforcing panel 3 from this opening, and the reinforcing panel is provided by the amount of the opening. Since the weight of the 3 is also lightened, the reinforcing panel 3 can be easily handled when the door body 2 is assembled, and the workability at the time of manufacturing the door is improved.

In the present embodiment, both the upper end and the lower end of the reinforcing panel 3 are open, and the glass wool 34 may be provided beyond the upper end and the lower end of the reinforcing panel 3. As shown in FIGS. 3 and 11, the upper portion of the glass wool 34 is filled in the space between the upper end of the reinforcing panel 3 and the upper frame 4, and the lower portion is the lower end of the reinforcing panel 3 and the lower frame 5. The space between them is filled.

As shown in FIGS. 6 to 8, a connecting plate 35 is fixed by a screw 36 between the left and right first finding surfaces 30 so as to straddle the opening. Both ends of the connecting plate 35 in the length direction are in contact with the inside of the first finding surface 30, and the head of the screw 36 is flush with the outer surface of the first finding surface 30. A plurality of connecting plates 35 are provided at intervals in the height direction. The screw 36 is screwed so as to penetrate the first finding surface 30 with the glass wool 34 filled inside the reinforcing panel 3. The shaft portion of the screw 36 that connects the connecting plate 35 to the first finding surface 30 extends into the internal space of the reinforcing panel 3 and is fitted into the glass wool 34, and the glass wool 34 is supported by the shaft portion of the plurality of screws 36. As a result, the glass wool 34 is restricted from moving downward by its own weight. By holding the height position of the glass wool 34 filled in the reinforcing panel 3 by a plurality of screws 36 provided in the height direction, the glass wool 34 is compressed so as to be lowered by its own weight, and a space is created on the upper side inside the door body. To prevent.

Double-sided tape 37 extending in the height direction is adhered to the outer surfaces of the left and right first finding surfaces 30. In the present embodiment, the double-sided tape 37 is a so-called structural bonding tape having elasticity and good vibration absorption, and functions as a fixing means (adhesive means) and a cushioning material. In the illustrated embodiment, two double-sided tapes 37 are arranged side by side in the height direction on each of the first finding surfaces 30. The number and width of the double-sided tape 37 are not limited. That is, in the present embodiment, the reinforcing panel 3 includes a first finding surface 30, a second finding surface 31, a prospective surface 32, and a prospective surface 33, and the inside is filled with glass wool 34, and the connecting plates 35 are left and right. By attaching the screw 36 to the first finding surface 30, the glass wool 34 filled with the screw 36 is fitted, and double-sided tape 37 is provided on each of the left and right first finding surfaces 30 in the height direction. It is formed by that. Such a reinforcing panel 3 can be prepared as a unit.

A metal (typically steel) reinforcing plate 8 is fixed to each of the first finding surfaces 30 of the four reinforcing panels 3 via double-sided tape 37. In the illustrated embodiment, the reinforcing plate 8 has a height dimension and a width dimension over substantially the entire area of the finding surface of the door body 2 (the area inside the four-circumferential door frame). The reinforcing plate 8 extends so as to close the opening between the left and right first finding surfaces 30 of the reinforcing panel 3, thereby improving the sound insulation performance of the door body 2 and the first surface material 20 formed of a thin steel plate. Prevents deformation (for example, denting). Although one reinforcing plate 8 is used in this embodiment, a plurality of small-area reinforcing plates may be used. In the illustrated embodiment, the first finding surface 30 having an opening is the finding surface on the outdoor side, and the reinforcing plate 8 is fixed to the outdoor finding surface of the door body 2, but the first finding surface having an opening is provided. The attached surface 30 may be used as the indoor side finding surface, and the reinforcing plate 8 may be fixed to the indoor side finding surface of the door body 2.

As shown in FIG. 5, which is a partially enlarged view of FIG. 4, the main surface portion 200 of the first surface material 20 is fixed to the reinforcing plate 8 fixed to each first finding surface 30 of the reinforcing panel 3 (for example,). The main surface portion 210 of the second surface material 21 is fixed (for example, adhered using an adhesive) to each of the second finding surfaces 31 of the reinforcing panel 3. After fixing the reinforcing plate 8 to the main surface portion 200 of the first surface material 20, the reinforcing plate 8 and the first finding surface 30 of the reinforcing panel 3 may be fixed.

The thickness of the first finding surface 30 of the reinforcing panel 3, the thickness of the second finding surface 31, and the thickness of the reinforcing plate 8 are the thickness of the first surface material 20 and the second surface material 21 made of thin steel plates. Greater than. The total of each plate thickness, specifically, "the plate thickness of the first surface material 20 + the plate thickness of the second surface material 21 + the plate thickness of the first finding surface 30 + the plate thickness of the second finding surface 31 + The larger the "thickness of the reinforcing plate 8", the greater the sound insulation performance of the door body 2. In order to obtain a predetermined sound insulation performance by using the first surface material 20 and the second surface material 21 having a predetermined thin plate thickness, in addition to filling with a sound absorbing material such as glass wool 34, steel "The total of the thickness of the first finding surface 30, the thickness of the second finding surface 31, and the thickness of the reinforcing plate 8 (the weight obtained as a result)" within the range that does not diminish the feature of being a lightweight door made of steel. It is advantageous to make it larger. The reinforcing plate 8 is not always necessary when a predetermined plate thickness can be secured by "the plate thickness of the first finding surface 30 + the plate thickness of the second finding surface 31". When the reinforcing plate 8 is not used, at least one of the first finding surface 30 and the second finding surface 31 is a double-sided tape such as a structural bonding tape on the first surface material 20 and the second surface material 21. It is adhered through a cushioning material such as.

The basic configuration of each reinforcing panel 3 is the same, but the shape is not necessarily the same. As shown in FIGS. 2 and 7 (A), in the four reinforcing panels 3, the reinforcing panel 3 located on the door end side is cut out at a portion corresponding to the liner 240 of the lock 24 and the liner 250 of the door guard 25. ing. As shown in FIG. 2, a portion corresponding to the liner 260 of the door closer 26 is cut out in the reinforcing panel 3 built in the door tail side and the upper portion of the reinforcing panel 3 adjacent to the reinforcing panel 3. .. FIG. 7B shows the reinforcing panel 3 adjacent to the reinforcing panel 3 located on the door end side, but there is no notch for avoiding the components of the door body 2. The number of reinforcing panels 3 built in the door body 2 is not limited. Further, the dimensions of the widths of the plurality of reinforcing panels 3 may be the same width, or may be partially or partially different widths.

The reinforcing panels 3 and the four-circumferential frames 4, 5, 6, and 7 are in a non-contact state, and are separated from each other by, for example, about 10 mm. The reinforcing panels 3 are in close contact with each other in a non-contact state. That is, the prospective surface 33 of one reinforcing panel 3 adjacent to the door body 2 in the width direction and the prospective surface 32 of the other reinforcing panel 3 are separated by a gap G (for example, about 5 mm). In the present embodiment, no sound absorbing material such as glass wool is provided in the gap between the reinforcing panels 3. The reinforcing plate 8 extends so as to close the gap G between the reinforcing panels 3.

FIG. 9 is a diagram showing a reinforcing panel 3 ′ according to another embodiment. The reinforcing panel 3'has a substantially rectangular cross-sectional shape from the left and right first finding surfaces 30', the second finding surface 31, and the left and right prospecting surfaces 32 and 33 having an opening in the middle in the width direction. The internal space surrounded by the left and right first finding surfaces 30', the second finding surface 31, and the left and right prospecting surfaces 32 and 33 is filled with glass wool (not shown). A connecting plate 35'is fixed by a screw 36 so as to straddle the opening between the left and right first finding surfaces 30'. The connecting plate 35'is a vertically rectangular plate extending over the entire height of the reinforcing panel 3', and the connecting portions 350'at both ends in the width direction are deformed to come into contact with the inner surface of the first finding surface 30'. As a result, the connecting plate 35'is flush with the left and right first finding surfaces 30', and together with the left and right first finding surfaces 30', form the finding surface of the reinforcing panel 3'. The screws 36 are provided at a plurality of locations at intervals in the height direction of the reinforcing panel 3', and the shaft portion of the screw 36 is fitted into glass wool (not shown).

FIG. 10 is a diagram showing a reinforcing panel 3 ″ according to another embodiment. The reinforcing panel 3 ″ includes a first member having an L-shaped cross section from the prospective surface 33 formed by bending the first finding surface 30 ″ and one end side of the first finding surface 30 ″, and the first member. It has a rectangular cross-sectional shape from the two finding surface 31 and the second member having an L-shaped cross section from the prospective surface 32 formed by bending one end side of the second finding surface 31, and glass wool inside (FIG. FIG. Not shown) is filled. A bent piece 300 ″ is formed on the other end side of the first finding surface 30 ″, and the bent piece 300 ″ is brought into contact with the inner surface of the prospective surface 32 and connected by a screw 36. .. A bent piece 310 is formed on the other end side of the second finding surface 31, and the bent piece 310 is brought into contact with the inner surface of the prospective surface 33 and connected by a screw 36. The screws 36 are provided at a plurality of locations at intervals in the height direction of the reinforcing panel 3 ″, and the shaft portion of the screw 36 is fitted into glass wool (not shown).

As shown in FIG. 11, the upper frame 10 has a first finding surface 100, a second finding surface 101 having a height dimension smaller than that of the first finding surface 100, and a first finding surface 100 side. 1 The lower surface 102, the second lower surface 103 on the second finding surface 101 side extending at a position higher than the first lower surface 102, and the intermediate finding surface 104 extending between the first lower surface 102 and the second lower surface 103 are provided. An upper airtight member 106 extending in the opening width direction is provided in the recess 105 formed in the intermediate finding surface 104. The upper frame 10 is filled with rock wool.

As shown in FIG. 13, the door end side vertical frame 11 is on the side of the first finding surface 110, the second finding surface 111 narrower than the first finding surface 110, and the first finding surface 110. The first prospective surface 112, the second prospective surface 113 on the second finding surface 111 side, and the intermediate finding surface 114 extending between the first prospective surface 112 and the second prospective surface 113 are provided, and the intermediate finding surface 114 is provided. A side airtight member 116 extending in the opening height direction is provided in the recess 115 formed in the above. The vertical frame 11 on the door end side is filled with rock wool.

As shown in FIG. 13, the door tail side vertical frame 12 is on the side of the first finding surface 120, the second finding surface 121 narrower than the first finding surface 120, and the first finding surface 120. The first prospective surface 122, the second prospective surface 123 on the second finding surface 121 side, and the intermediate finding surface 124 extending between the first prospective surface 122 and the second prospective surface 123 are provided, and the intermediate finding surface 124 is provided. A side airtight member 126 extending in the opening height direction is provided in the recess 125 formed in the above. The vertical frame 12 on the door tail side is filled with rock wool.

As shown in FIGS. 11, 12, and 15, the lower frame 13 has a substantially U-shaped cross section from the first finding surface 130, the second finding surface 131, and the upper surface 132. The lower frame 13 is a sill, and most of it is embedded in the floor surface FL, and the upper surface 132 is located slightly above the floor surface FL and extends horizontally. A plurality of connecting members (anchors) 134 are provided between the first finding surface 130 and the lower end of the second finding surface 131 with an interval in the length direction (opening width direction).

Inside the lower frame 13, a reinforcing frame formed in a substantially U-shaped cross section from the first finding surface 140, the second finding surface 141, and the upper surface 142 so as to come into contact with the inner surface of the lower frame 13. 14 is provided. The reinforcing frame 14 is not always necessary when a predetermined strength can be obtained by increasing the plate thickness of the lower frame 13.

As shown in FIGS. 3, 11, and 12, the lower end of the door body 2 is open, and a U-shaped door bottom 53 having a downward cross-sectional view is provided in the lower frame 5, and the door bottom 53 has a U-shaped downward cross section. Is provided so that the lower airtight member 9 can be raised and lowered. The lower airtight member 9 is in the upper first position (not shown) when the door body 2 is in the open posture, and descends from the first position when the door body 2 approaches the closed posture. When 2 is in the closed posture, it becomes the lower second position and abuts on the upper surface 132 of the lower frame 13 to form an airtight structure. The lower airtight member 9 that has descended to the second position rises to the first position when the door body 2 is released from the closed posture.

A rod R (see FIG. 11) that can appear and disappear from the door tail side end face is provided in the lower portion of the door body 2, and the rod is urged by a coil spring so as to protrude from the door tail side end face. In the state where the rod is projected, the lower airtight member 9 is in the first position, and when the door body 2 approaches the fully closed posture, the tip of the rod is below the second prospective surface 123 of the door tail side vertical frame 12. The lower airtight member 9 descends from the first position to the second position by pushing the rod into the door tail side end surface by abutting on the portion. The lower airtight member 9 that moves up and down in conjunction with the opening and closing of the door body 2 is known, and the specific mechanism is not limited. For example, in Patent Document 1, an airtight member is raised and lowered by using a leaf spring that deforms in conjunction with a rod that moves in the horizontal direction, and in Patent Document 2, a link mechanism that is linked to a rod that moves in the horizontal direction is used. In this embodiment as well, the lower airtight member 9 can be raised and lowered by using a rod and such a link mechanism or a leaf spring when the door body 2 is opened and closed.

At least the lower portion of the lower airtight member 9 is made of elastic rubber. The lower portion of the lower airtight member 9 is a downwardly bulging elastic curved portion 90, and the elastic curved portion 90 is in close contact with the upper surface 132 of the lower frame (sliding) 13 in the fully closed posture of the door body 2. It has become like. In the illustrated embodiment, when the door body 2 is fully closed, the lower end of the elastically curved portion 90 is brought into close contact with the substantially central portion of the upper surface 132 of the lower frame 13 in the expected direction. The lower airtight member 9 has a length over substantially the entire width of the door body 2, but does not reach the end face in the width direction of the door body 2 (FIGS. 13 (B) and 13 (C)).

Lower closing members 15 are provided at both ends of the upper surface 132 of the lower frame 13 in the opening width direction. Typically, the lower closing member 15 is made of rubber, and in the present embodiment, the lower closing member 15 is made of EPDM (ethylene propylene diene rubber). The lower airtight member 9 comes into contact with the lower airtight member 15 when the door body 2 is fully closed. However, since the elastically curved portion 90 of the lower airtight member 9 has elasticity, the lower airtight member 9 has elasticity. Reference numeral 15 is not necessarily an elastic member such as rubber, and may be made of resin or metal.

Mounting holes are formed at both ends of the upper surface 132 of the lower frame 13 in the opening width direction, and the lower closing member 15 is detachably fitted into the mounting holes. In this embodiment, the mounting hole is bottomed, so to speak, a recess for mounting.

In the present embodiment, the cutout portion C is formed by cutting out substantially half of the first finding surfaces 130 and 140 sides of both ends of the lower frame 13 and the reinforcing frame 14 in the opening width direction. A mounting hole is formed from the notch C and the vertical frames 11 and 12. The cutout portion C will be described with reference to FIG. The upper surface 132 of the lower frame 13 and the upper surface 142 of the reinforcing frame 14 are cut out in a square shape, and the first finding surface 130 of the lower frame 13 and the first view of the reinforcing frame 14 have the same width as the notch of the square shape. The upper portion of the attached surface 140 is continuously cut out in a square shape.

The upper surface 132 of the lower frame 13 is formed with an L-shaped edge in a plan view from the first notch edge 1320 extending in the finding direction and the second notch edge 1321 extending in the expected direction, and the upper surface 142 of the reinforcing frame 14 is formed. An L-shaped edge portion in a plan view is formed from a first notch edge 1420 extending in the finding direction and a second notch edge 1421 extending in the prospective direction, and the L-shaped edge of the upper surface 132 of the lower frame 13 is formed. The L-shaped edge of the upper surface 142 of the reinforcing frame 14 coincides with the portion, and is a vertical surface from the first notch edge 1320 and the first notch edge 1420, and the second notch edge 1321 and the second notch edge 1421, respectively. Is formed.

The first finding surface 130 of the lower frame 13 is formed with an L-shaped edge portion in front view from a third notch edge 1300 extending in the vertical direction and a fourth notch edge 1301 extending horizontally in the finding direction. The first finding surface 140 of the reinforcing frame 14 is formed with an L-shaped edge in front view from a third notch edge 1400 extending in the vertical direction and a fourth notch edge 1401 extending horizontally in the finding direction. The L-shaped edge of the first finding surface 130 of the lower frame 13 and the L-shaped edge of the first finding surface 140 of the reinforcing frame 14 coincide with each other, and the third notch edge 1300 and the third notch are aligned. A vertical plane is formed from the edge 1400, and a horizontal plane is formed from the fourth notched edge 1301 and the fourth notched edge 1401.

The first notched edges 1320 and 1420 of the lower frame 13 and the reinforcing frame 14 reach the end surface 133 in the length direction of the lower frame 13. The second notch edge 1321 of the lower frame 13 reaches the upper end of the first finding surface 130 of the lower frame 13 and is continuous with the vertical third notch edge 1300. The second notched edge 1421 of the reinforcing frame 14 reaches the upper end of the first finding surface 140 of the reinforcing frame 14 and is continuous with the vertical third notched edge 1400.

Support members 16 are provided at both ends of the lower frame 13 in the opening width direction so as to be located in the lower frame 13 (reinforcing frame 14). The support member 16 has a U-shaped cross section from the first finding surface 160, the second finding surface 161 and the upper surface 162, and the first finding surface 160 is formed on the first finding surface 140 of the reinforcing frame 14. The second finding surface 161 is brought into contact with the inside of the second finding surface 141 of the reinforcing frame 14, and one end edge is provided so as to coincide with the end surface 133 of the lower frame 13. As shown in FIG. 14, a partition plate 17 is provided in the lower frame 13 adjacent to the other end of the support member 16 to prevent the mortar injected into the lower frame 13 from reaching the mounting holes. There is.

The area of the upper surface 162 of the support member 16 is larger than the flat area of the notch portion C of the lower frame 13, and the upper surface 162 is located including the region corresponding to the notch portion C, and is located at the bottom of the mounting hole. Is formed from the upper surface 162 of the support member 16. In the present embodiment, the height of the upper surface 162 is slightly higher than the horizontal plane formed by the fourth notch edge 1301 and the fourth notch edge 1401 (see FIGS. 19B and 19C). ), The horizontal plane formed from the fourth notch edge 1301 and the fourth notch edge 1401 is set to the same height as the upper surface 162 so that the fourth notch edges 1301 and 1401 form the bottom of the mounting hole together with the upper surface 162. May be good. By adopting a bottomed mounting hole provided with a bottom surface, the lower surface 152 of the lower closing member 15 is fitted into the mounting hole so as to abut against the bottom surface (upper surface 162), whereby the lower frame 13 of the lower closing member 15 is fitted. The height of protrusion from the upper surface 132 can be stabilized and mounted.

The side portion of the mounting hole is formed from the notch edge of the notch portion C of the lower frame 13 and the reinforcing frame 14 and the surfaces of the vertical frames 11 and 12. Specifically, the notch edge of the notch portion C forming the side portion of the mounting hole is the first notch edge 1320 formed on the upper surface 132 of the lower frame 13 and the first notch edge formed on the upper surface 142 of the reinforcing frame 14. The notch edge 1420, the second notch edge 1321 formed on the upper surface 132 of the lower frame 13, the second notch edge 1421 formed on the upper surface 142 of the reinforcing frame 14, and the first found surface 130 of the lower frame 13 were formed. The third notch edge 1300 and the third notch edge 1400 formed on the first finding surface 140 of the reinforcing frame 14. In the door end side vertical frame 11, the surfaces forming the side portions of the mounting holes are the intermediate finding surface 114 and the second prospective surface 113, and in the door tail side vertical frame 12, the surfaces forming the side portions of the mounting holes. Is an intermediate finding surface 124 and a second prospecting surface 123.

As shown in FIG. 17, the lower closing member 15 includes an inclined first upper surface 150, a horizontal second upper surface 151, a horizontal lower surface 152, a first side surface 153, and a second side surface 154. It is a block body including a third side surface 155 and a fourth side surface 156. The lower closing rubber 15 has a plan-viewing shape from the first side surface 153, the second side surface 154, the third side surface 155, and the fourth side surface 156. The mounting hole is a square corresponding to the planar shape of the lower closing member 15 in a plan view, and the lower closing member 15 can be detachably fitted. More specifically, as shown in FIGS. 16 and 19, the first side surface 153 contacts the first notch edges 1320 and 1420, and the second side surface 154 is the intermediate finding surface 114 of the door end side vertical frame 11. The third side surface 155 is in contact with the second notch edges 1321, 1421, the third notch edges 1300 and 1400, and the fourth side surface 156 is in contact with the intermediate finding surface 124 of the door tail side vertical frame 12. It comes into contact with the second prospective surface 113 of 11 and the second prospective surface 123 of the door tail side vertical frame 12. Since the lower closing member 15 is formed of an elastic member, it can be removed from the mounting hole by elastically deforming the lower closing member 15 fitted in the mounting hole. By making the lower closing member 15 removable, maintainability such as repair and replacement of the lower closing member 15 is good. Although FIGS. 16 and 19 show the door tail side of the lower frame 3, when the lower closing member 15 is provided in the mounting hole on the door end side, the fitting may be symmetrical in a plan view. Understood by those skilled in the art.

In the lower closing member 15, the lower portion below the height of the lower end of the first upper surface 150 (the portion corresponding to the height of the first side surface 153) is located in the mounting hole (below the upper surface 132). It will be installed. In this way, the lower portion of the lower closing member 15 is embedded in the lower frame 13, and the side surface of the lower portion of the lower closing member 15 comes into contact with the side portion of the mounting hole, so that the door body 2 is repeatedly opened and closed. It is possible to prevent the lower closing member 15 from being deformed or detached so as to be rolled up by a frictional force or the like acting on the rubber lower closing member 15 due to the above. In the present embodiment, in particular, when the lower closing member 15 is mounted in the mounting hole, the lower portion is fitted below the upper surface 132 than the height dimension of the upper portion located above the upper surface 132. Since the depth dimension of the side portion is large, even if the upper portion rubs against the lower watertight member 9, the state in which the lower closing member 15 is fitted is maintained in a stable manner. Further, the second side surface 154 and the fourth side surface 156 of the lower closing member 15 are in the middle of the intermediate finding surface 114 of the door end side vertical frame 11 and the door tail side vertical frame 12 at the total height (upper part and lower part). It is in contact with the finding surface 124, the second prospective surface 113 of the door end side vertical frame 11, and the second prospective surface 123 of the door tail side vertical frame 12.

The second upper surface 151 of the lower closing member 15 is located on the first finding surface 130 side in the prospective direction of the upper surface 132 of the lower frame 13 in the state of being mounted in the mounting hole, and is on the side of the second upper surface 151. The lower ends of the airtight members 116 and 126 are in contact with each other and are in close contact with each other. The upper end portions of the left and right side airtight members 116 and 126 are in close contact with both end portions of the upper airtight member 106 in the length direction (opening width direction), respectively. Therefore, when the door body 2 is in the fully closed position, both ends of the lowered lower airtight member 9 in the length direction (opening width direction) are in close contact with the left and right lower closing members 15, respectively. A four-circle continuous airtight structure is formed around the door body 2 from the side airtight members 116 and 126, the left and right lower closing members 15, and the lower airtight member 9.

The first upper surface 150 is inclined downward from the first finding surface 130 side toward the second finding surface 131 side, and the lower end of the first upper surface 150 is located at an intermediate portion of the upper surface 132 in the substantially prospective direction. It coincides with the upper surface 132 so that a step is not formed on the upper surface 132. When the door body 2 is in the fully closed position, both ends in the length direction (both ends in the opening width direction) of the lower elastic curved portion 90 of the lower airtight member 9 are the upper surface 132 of the lower frame 13 and the first upper surface 150 of the lower closing member 15. An airtight structure is formed at the lower ends of both ends of the door body 2 in the width direction by being in close contact with each other. By bringing both ends of the elastically curved portion 90 at the lower end of the lower airtight member 9 in the opening width direction into contact with the upper surface 132 of the lower frame 13 and the inclined first upper surface 150 of the lower closing member 15, the elastically curved portion of the curve While the 90 is deformed, it smoothly contacts the upper surface 132 of the lower frame 13 and the first upper surface 150, and there is no gap.

When the height position of the upper surface (first upper surface 150, second upper surface 151) of the lower closing member 15 is high at the site, the height can be adjusted by cutting the lower end portion of the lower closing member 15 with a cutter or the like. Is. At the site, when the height position of the upper surface (first upper surface 150, second upper surface 151) of the lower closing member 15 is low, a rubber plate or the like may be attached to the lower surface 152 of the lower drawing member 15 or the support member 16 may be attached. The height can be adjusted by attaching a rubber plate or the like to the upper surface 162. In this way, by adjusting the height of the lower portion of the lower closing member 15 located in the mounting hole at the site, the height position of the upper surface of the upper portion of the lower closing member 15 can be adjusted. The height of the lower closing member can be easily adjusted as compared with the case where the lower closing member is attached to the upper surface of the lower frame.

1 Door frame 10 Upper frame 11 Vertical frame 116 Side airtight member 126 Side airtight member 12 Vertical frame 13 Lower frame 132 Upper surface of lower frame 2 Door body 20 First surface material 21 Second surface material 3, 3'3' ´ Reinforcing panel 8 Reinforcing plate 9 Lower airtight member 30 1st found surface 30 ´ 1st found surface 30 ´ ´ 1st finding surface 31 2nd finding surface 32 Expected surface (1st prospect surface)
33 Expected surface (2nd expected surface)
34 Glass wool (sound absorbing material)
35 Connecting plate 35'Connecting plate (first found surface)
36 Screw 37 Double-sided tape (cushioning material)
15 Lower closing member 150 1st upper surface (1st part)
151 Second upper surface (second part)
G gap

Claims (5)

A door frame consisting of an upper frame, left and right vertical frames, and a lower frame,
A door body that is rotatably provided on the door frame and is rotatably opened toward the first space from a fully closed posture that separates the first space from the second space.
It is an airtight structure of the door equipped with
At the lower end of the door body, a lower airtight member that moves up and down in conjunction with the opening and closing of the door body is provided.
A side airtight member is provided at the widthwise end of the vertical frame or the door body over the height direction.
Mounting holes are formed on the upper surface of the lower frame at both ends in the opening width direction.
A lower closing member is fitted into the mounting hole, and the lower closing member has an upper portion located above the upper surface of the lower frame and a lower portion located below the upper surface of the lower frame.
The lower end of the side airtight member is in close contact with the upper portion of the lower closing member at least when the door body is fully closed.
When the door body is in the fully closed posture, the lower airtight member is in close contact with the upper surface of the lower frame, and both ends of the lower airtight member in the opening width direction are the upper surface of the lower frame and the upper side of the lower closing member. Adhere to the part,
Airtight structure of the door. The upper surface of the lower closing member includes a first portion located on the first space side and a second portion located on the second space side.
The lower end of the side airtight member is in close contact with the second portion.
When the door body is in the fully closed posture, both ends of the lower airtight member in the opening width direction are in close contact with the upper surface of the lower frame and the first portion of the upper surface of the lower closing member.
The airtight structure of the door according to claim 1. The first portion of the upper surface of the lower closing member is an inclined surface that inclines downward toward the first space side, and the first space side edge of the first portion coincides with the upper surface of the lower frame.
The airtight structure of the door according to claim 2. The mounting hole includes a bottom surface with which the lower surface of the lower closing member abuts.
The airtight structure of the door according to any one of claims 1 to 3. The mounting hole is formed near the second space on the upper surface of the lower frame, and a part of the side surface of the mounting hole is formed from the portion of the vertical frame.
The airtight structure of the door according to any one of claims 1 to 4.

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