JP3526017B2 - Moving partition with seal structure - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving partition having upper and lower sealing structures, and more particularly to a vertical sealing structure for achieving high sound insulation in a large moving partition.

[0002]

2. Description of the Related Art A conventional moving partition having a seal structure is shown in FIG. 7 (for example, Japanese Patent Laid-Open No. 6-221061).
(See Japanese Patent Laid-Open Publication No. 2004-242370), a pair of rectangular panels 1 and 2 which are installed in parallel with each other at intervals, and are arranged between the panels at the lower and upper ends of the panels 1 and 2, And frame members 3 and 4 for connecting and maintaining
Elevating members 7 and 8 are provided in the frame members 3 and 4 so as to be able to move up and down, and face the floor or ceiling side and have seal members 5 and 6 at the tips. A sound absorbing material 9 is filled between the panels 1 and 2.

The frame members 3 and 4 have a groove-shaped cross-sectional shape, and the groove-shaped groove opens outward (the frame member 3 is downward and the frame member 4 is upward), and the elevating member 7 is in the groove. ,
8 is constantly urged outward by a spring 11 installed on the frame members 3 and 4, and is vertically movable (moved up and down) by a winding / rewinding device (not shown) via a wire 12. That is, when the wire 12 is unwound by the winding / unwinding device, the elevating members 7 and 8 are moved outward (the elevating member 7 is downward and the elevating member 8 is upward) by the urging force of the spring 11 to move to the floor and ceiling. When the side is closed and the wire 12 is wound up, the elevating members 7 and 8 move inward against the biasing force of the spring 11 and are drawn into the frame members 3 and 4. The elevating members 7 and 8 have a groove-shaped cross-sectional shape, and the groove of the groove is opened inward (the elevating member 7 is up and the elevating member 8 is down), and the sound absorbing material 13 is filled in the grooves. There is. Further, in the gap between the frame members 3 and 4 and the lifting members 7 and 8, a rubber seal member 14 is provided along the width direction of the panel.
Are attached so that they are in sliding contact with each other.

In the above partition, 15 is a rail member attached to the ceiling, 16 is a runner for slidably suspending this partition on the rail member 15, 17
Is the floor. When the wire 12 is unwound by operating a winding / unwinding device (not shown) in the partition and the elevating members 7, 8 are moved outward, the rubber seal member 5 elastically abuts on the floor side. Similarly, the rubber seal member 6 elastically abuts on the ceiling side (the lower surface of the rail member 15) to close the gaps formed between the partition and the floor and between the partition and the ceiling.

In the moving partition as described above, if a structure for closing the gap between the partition and the ceiling or floor is defined as a sealing structure, the sound coming out through this sealing structure is as shown in FIG.
As shown in (only on the floor side, the same applies to the ceiling side), the vehicle passes through two routes. The first propagation path X passes through the mechanical part of the seal structure (a gap between the elevating member 7 and the frame member 3), and the second propagation path Y is the ground part of the seal structure (the seal member 5 and the floor 17). It goes through the gap = carpet part). The sound-insulating measure for the route X passing through the mechanism part is the rubber seal member 14, and the measure for the route Y passing the ground contact part is the rubber seal members 5 and 6. Note that the same sound insulation performance is required for these two routes. This is because the sound insulation characteristic of the entire seal conforms to the poorer performance of the above two paths.

[0006]

A seal structure for a moving partition is disclosed in, for example, Japanese Utility Model Laid-Open No. 6-32681.
The elevating member has a first rubber seal portion provided at the protruding tip portion and a second rubber seal portion provided between the elevating member and the panel recess (frame member), and the second rubber seal portion is the panel. A plurality of hollow arc-shaped convex portions extending in the width direction are formed so as to be elastically slidably contacted with the inner wall of the panel recess (frame member). In addition, registered utility model No. 30025
In Japanese Patent Laid-Open No. 93-93, the pressure contact member (elevating member) is provided with a double-structured hollow leg having a sealing material at the tip, and the seal material is provided between the pressure contact member (elevating member) and the lower frame (frame member). Intervenes. Both of these two techniques use a method of eliminating a gap by sliding the rubber seal, but it is difficult to obtain high sound insulation only by sliding the rubber seal. The reason is that, depending on the dimensional accuracy of the member, a portion where the rubber seal portion cannot sufficiently slide is formed, and sound leaks from there. In addition, these technologies are mainly aimed at damping the sound coming out of the mechanism part,
No sufficient consideration was given to the sound coming out of the ground.

Further, in Japanese Patent Laid-Open No. 3-287994, regarding a movable partition door, a perforated plate is attached to the front end of the door plate on the floor side, and a sound absorbing material is filled on the back side of the perforated plate. Thus, the sound leaking from the gap between the door plate and the floor surface is absorbed by the sound absorbing material filled in the back surface of the perforated plate, and the level of the sound leaking to the outside is reduced. However, this does not relate to the lifting member of the partition, and does not sufficiently suggest sound insulation measures against the sound coming through the mechanical portion of the lifting member.

On the other hand, FIG. 9 shows the contribution of the partition main body portion and the seal structure portion to the sound insulation characteristics (sound pressure level) of the entire partition in the conventional partition. As shown here, even if the sound insulation characteristics of the partition main body portion or the seal structure portion are good, the sound insulation characteristics of the entire partition are based on the one with poorer characteristics. Regarding the sound pressure level of the entire partition shown in FIG. 9, the reverberation room is partitioned by a partition (a carpet is laid under the partition), the gap between adjacent partitions is closed by clay, and the sound source is arranged on one side of the partition. Then, a microphone for measurement was placed on the other side, and the sound pressure level of the transmitted sound coming out to the other side through the partition was measured. Also,
Regarding the sound pressure level of each partition main body part or the upper and lower end seal structure, the transmission loss of each part is measured and the contribution of each part to the sound insulation characteristics of the entire partition is calculated, and the sound pressure level of the entire partition is measured. The sound pressure level of each was compared.

In the current partition, it is relatively easy to improve the sound insulation performance of the partition main body portion, but the sound insulation performance of the seal structure portion becomes a bottleneck, and the sound insulation performance of the entire partition cannot be sufficiently improved. . The present invention has been made in view of the above problems, and it is an object of the present invention to improve the sound insulation characteristics of partitions having upper and lower seal structures, and more specifically, the sound insulation of a seal structure used for a high sound insulation large moving partition panel. The purpose is to improve the characteristics.

[0010]

A moving partition having a sealing structure according to the present invention comprises a pair of panels installed in parallel with each other and filled with a sound absorbing material, and a groove-shaped cross-sectional shape, and an upper end of the panel. A frame member installed on both sides of the panel and the lower end portion with the groove facing outward, and a frame member that is vertically movable inside the frame member and faces the floor or ceiling side and has a seal member at the tip end. In a moving partition including an elevating member in which a sound absorbing material is arranged, the elevating member has a main body portion having a groove-shaped cross-sectional shape, the groove is directed inward, and an opening portion is provided on a surface facing the floor or ceiling side. The sound absorbing material is arranged inside the opening, and the frame member has an overhanging portion that protrudes inside the groove of the elevating member body .
The sound propagation path is configured to be diffracted by the overhanging portion and the elevating / lowering member main body , and the sound absorbing material is configured to propagate the sound.
It is characterized in that it is placed in the route . Further, a projecting portion projecting inward of the frame member may be provided on the side of the elevating member to increase the number of diffracted portions of the sound propagation path between the projecting portion of the frame member and the projecting portion. Further, when the floor is a carpet, the seal member of the lifting member installed on the floor side can be made of metal.

In order to further improve the sound insulation performance in the above moving partition, the following constitution can be adopted. That is, an opening is formed in the groove-shaped bottom surface of the frame member, and the sound coming through the mechanical portion of the seal structure is absorbed by the sound absorbing material filled between the panels. In addition, the panel is hollow, a sound absorbing material is filled in the hollow portion, and an opening communicating with the hollow portion is provided on a surface where the frame member and the panel are in contact with each other. Sound is absorbed by the sound absorbing material filled in.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The moving partition of the present invention will be specifically described below with reference to FIGS. The moving partition shown in FIG. 1 is, like the conventional moving partition shown in FIG. 7, a pair of panels 21 and 22 having a rectangular shape in plan view, which are installed in parallel with each other at intervals, and lower end portions of the panels 21 and 22. And frame members 23 and 24, which are arranged between the panels at the upper end and keep the panels parallel to each other and connect the panels.
And the elevating members 25 and 26 that are vertically movable in the frame members 23 and 24. In addition, the panel 21,
A sound absorbing material 27 is filled between the spaces 22.

The frame members 23 and 24 are made of, for example, aluminum extruded material having a groove-shaped cross section, and the groove-shaped groove is open outward, and the groove member projects inside the elevating members 25 and 26. Overhang (here ribs integrally formed by extrusion)
Two 28 and 29 are provided at intervals. The elevating members 25 and 26 are groove-shaped cross-section main bodies 31 and 32 made of aluminum extruded material, rubber seal members 33 and 34 provided at the tip end facing the floor or ceiling side, and the following sound absorbing material. It consists of 35 and 36. Grooves of the elevating member main body portions 31, 32 are opened inward, and sound absorbing materials 35, 36 having a width that can advance and retreat between the overhang portions 28, 29 are arranged in the grooves.
Having openings 37, 38 on the surface facing the floor or ceiling side,
The sound absorbing materials 35 and 36 are arranged inside the openings 37 and 38. The opening ratio of the openings 37, 38 (the area of the entire surface of the lifting member main body facing the floor or ceiling side (A
The ratio of the area (a × b) of the opening to (× B) is preferably 5% or more as described later. The pair of seal members 33 and 34 of the elevating members 25 and 26 are installed at intervals in the thickness direction, and the openings 37 and 38 are located between them.

The side walls 31a of the elevating member body 31 are inserted into the gaps between the side walls 23a of the frame member 23 and the projecting members 28, and the side walls 23a of the frame member 23 and the side walls 31a of the elevating member body 31 are inserted. And the side wall 3 of the elevating member main body portion 31 and each protruding member 28 of the frame member 23.
Similar to the conventional seal structure, a rubber seal member 39 continuous in the width direction of the panel is in sliding contact with the gap 1a (the same structure on the elevating member 26 side). In this moving partition, the frame members 23 and 24, the elevating members 25 and 26, and the seal member 39 form a seal structure at both ends. The lifting members 25 and 26 are the frame members 2
It is constantly urged outward by springs 41 and 42 installed at 3, 24, and is vertically movable by a winding / rewinding device (not shown) via a wire 43. This point is the same as the conventional moving partition. Other than that, 4
Reference numeral 4 is a rail member attached to the ceiling, 45 is a runner suspending this partition slidably on the rail member 44, and 46 is a floor.

In the moving partition, the sound passing through the gap between the floor 46 in the lower end seal structure and the ceiling side (rail member 44) in the upper end seal structure passes through the openings 37, 38, Sound absorbing material 3 placed inside
Sound is absorbed by 5, 36. In order to prevent the sound absorbing materials 35, 36 from falling or coming out of the elevating member main body parts 31, 32, punching metal, expanded metal, etc. are arranged in the openings 37, 38 as shown in the figure, and the sound absorbing materials 35, 36 are prevented from scattering. Therefore, glass cloth, perforated aluminum foil, thin film, or the like may be arranged. Also, the frame members 23, 2
The sound propagation path (indicated by an imaginary line and an arrow at the lower end) in the mechanical portion of the seal structure is diffracted by the overhanging portions 28 and 29 of 4 and the sound passing therethrough is forcibly attenuated, and the sound is propagated to the propagation path. Sound can be forcibly absorbed by the arranged sound absorbing members 35 and 36. Since the effect increases as the number of diffracted portions increases, not only the bulging portion is provided on the frame member, but also the bulging portion protruding inside the frame member is provided on the elevating member main body portion to increase the diffracting portions. May be. Further, the overhanging portions 28 and 29 are the lifting members 25 and 26.
It also has a fall prevention effect.

With respect to the moving partition of the above-mentioned embodiment, the sound insulation characteristic (transmission loss) of the lower end seal structure was examined. Specifically, only the opening ratio of the opening of the lifting member main body is 0%, 5
% And 30%, and this was compared with the moving partition of the conventional structure. FIG. 2 is a simplified view of the lower end seal structure of the moving partition having the opening (including 0%) used for the measurement.
FIG. 2B is a simplified view of the conventional lower end seal structure of the partition (the frame member has no overhanging portion and the sound absorbing material is filled in the entire groove of the elevating member main body) as shown in FIG. Shown in. When measuring the transmission loss, the reverberation room is partitioned by a partition (a carpet is laid under the partition), the sound source is placed on one side and the measurement microphone is placed on the other side, and the gap between adjacent partitions is set. All the gaps between the upper end seal structure and the ceiling and the mechanical gaps of the upper end seal structure were closed with clay. The sound coming out to the other side through the partition is measured with a microphone to obtain the transmission loss,
This was defined as the transmission loss of the lower end seal structure.

As a result, as shown in FIG. 3, the "aperture ratio of 0%" in which the frame member is formed with the overhanging portion has a significantly improved sound insulation characteristic as compared with the "conventional product", and the "aperture ratio of 5%". Also, the sound insulation property was further improved at “aperture ratio of 30%”. In this way, by arranging the frame member with the overhanging part and further arranging the sound absorbing material in the sound propagation path, the sound passing through the inside of the mechanical part is diffracted and attenuated, and higher sound insulation performance than the conventional product can be obtained. It was Further, the sound insulation performance is improved by providing the lifting member with an opening having an opening ratio of 5% or more. It should be noted that this effect can be similarly obtained with the upper end seal structure.

FIGS. 4, 5 (A) to (D) are other examples of the moving partition according to the present invention (only the sealing structure of the lower end portion is simplified and shown). These are related to the moving partition shown in FIG. It has all the above-mentioned effects. Figure 1
The configuration and action and effect focusing on the difference from the moving partition shown in FIG. In the moving partition shown in (A), each panel 51, 52 has an air layer 51a, 52a inside.
And the frame member 53 has two overhanging portions (ribs) 54.
And the openings 55 (three places) are formed on the bottom surface of the groove type, and the lifting / lowering member 56 has a main body 57 having two protruding portions (ribs) 58. An opening 59 is formed, and each side wall 57 a of the elevating member main body 57 and the overhanging portion 5 are formed.
The sound absorbing material 60 is filled in the space 8 and the sound absorbing material 61 is arranged between the two overhang portions 58. In this moving partition, the sound insulation performance of the partition main body is improved by having an air layer inside each panel, and the sound coming out of the mechanical section is absorbed by the sound absorbing material 62 between the panels from the opening 55. so,
Sound insulation performance in the seal structure part is further improved.

The moving partition shown in FIG.
2, 63 have air layers 62a and 63a inside, and the sound insulation performance of the partition main body portion is further improved. The moving partition shown in (C) is different from the moving partition shown in (A) in that the sealing member 6 is attached to the tip of the elevating member 64.
5 (only the lower seal structure) is a metal plate.
This seal member 65 is less likely to be elastically deformed than a rubber seal with the same pressing force, and the contact area with the carpet is small, so that the seal can efficiently dig into the inside of the fluff and the floor and the seal. The distance at the tip of the member can be shortened, the incident area of sound is reduced, the sound coming out of the grounding portion is reduced, and the sound insulation characteristics are improved. In the moving partition shown in (D), the front panel 66, 67 has a hollow portion, the hollow portion is filled with a sound absorbing material 68, and the side wall of the frame member 69 and the inner wall of the panel 66, 67 have a hollow portion. It differs from the moving partition shown in (B) in that an opening 70 communicating therewith is formed. As a result, the sound coming through the mechanical structure of the seal structure passes through the opening 70 and is absorbed by the sound absorbing material 68 inside the panel, and the sound insulation performance is improved.

The sound insulation characteristics (transmission loss) of the lower end seal structure of these moving partitions are shown in FIG. The method of measuring the transmission loss is the same as that in FIG. Incidentally, “E” is given for comparison, and is the transmission loss of the lower end seal structure of the conventional structure shown in FIG. 2 (b). As shown in FIG. 6, “A”, “B”, “C”, and “D” according to the present invention have a larger transmission loss than the comparative material “E” and have improved sound insulation characteristics. I understand. In "A" and "B", the sound passing through the mechanical portion of the seal structure is efficiently absorbed by passing through the sound absorbing material. In “C”, by using the metal plate as the seal member, the seal member bites well into the hair of the carpet, and the sound insulation property is improved at low frequencies. In addition, even if a resin floor seal (cushion material) is attached to the bottom surface of the metal plate to control the depth of penetration into the carpet and to prevent injury when the foot is inadvertently stepped on. Good. In the case of "D", the sound absorbing material in the front panel absorbs the sound coming out of the mechanism portion and the sound coming out of the gap with the carpet, thereby improving the sound insulation property.

[0021]

According to the present invention, since the upper and lower seal structures having high sound insulation characteristics can be obtained, the sound insulation characteristics of the entire moving partition can be improved.

[Brief description of drawings]

FIG. 1 is a conceptual cross-sectional view (a) of a moving partition according to the present invention and a bottom view (b) of a lifting member main body.

FIG. 2 is a simplified cross-sectional view of a moving partition sealing structure according to the present invention and a conventional structure.

FIG. 3 is a diagram showing sound absorption characteristics of the lower end seal structure.

FIG. 4 is a sectional view of a simplified seal structure of another moving partition according to the present invention.

FIG. 5 is likewise a sectional view of a simplified seal structure of another moving partition according to the present invention.

FIG. 6 is a diagram showing sound absorption characteristics of the lower end seal structure of the moving partition according to the present invention and the conventional structure.

FIG. 7 is a conceptual sectional view of a conventional moving partition.

FIG. 8 is a diagram illustrating a sound release path of a lower seal structure.

FIG. 9 is a diagram showing the sound insulation characteristics of the entire partition and the contribution of each of the partition main body part and the upper and lower seal structure parts in the conventional moving partition.

[Explanation of symbols]

21, 22 panel 23, 24 frame members 25, 26 Lifting member 27, 35, 36 sound absorbing material 28, 29 Overhang (rib) 31, 32 Lifting member main body 33, 34 Rubber seal member 37, 38 openings 39 Rubber seal member 41, 42 spring 43 wire 44 Rail member 45 runner 46 carpets

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiichi Hashimoto 1-5-5 Takatsukadai, Nishi-ku, Kobe-shi, Hyogo Kobe Steel Works, Ltd. Kobe Research Institute (72) Inventor Akio Sugimoto Nishi-ku, Kobe-shi, Hyogo Takatsukadai 1-5-5 Kobe Steel, Ltd., Kobe Research Institute (72) Inventor Kenji Iwai 5-9-12 Kitashinagawa, Shinagawa-ku, Tokyo Incorporated company Kobe Steel, Tokyo Head Office (72) Inventor Tadayuki Minoura 5-9-12 Kita-Shinagawa, Shinagawa-ku, Tokyo Incorporated company Kobe Steel Works, Tokyo Head Office (72) Inventor Hideo Aragane 5-9-12 Kita-Shinagawa, Shinagawa-ku, Tokyo Kobe Steel Works In-house in Tokyo (72) Inventor Tetsuro Mori 4-33 Kitahama Higashi Chuo-ku, Osaka City, Osaka Prefecture Obayashi Corporation Osaka Head Office (72) Inventor Yasuyuki Yamashita Central Osaka City, Osaka Prefecture Kitahama East No. 4-33 Incorporated company Obayashi Inside Osaka Main Store (72) Inventor Akira Ikeuchi 1-6-11 Awajicho, Chuo-ku, Osaka-shi, Osaka (56) Reference JP-A-6-221061 ( JP, A) JP 3-262889 (JP, A) JP 10-88937 (JP, A) JP 2000-8728 (JP, A) JP 2000-110455 (JP, A) Actual development Sho 55 -119865 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E06B ^7/ 16-7/24

Claims (4)

(57) [Claims] 1. A pair of panels installed in parallel with each other and filled with a sound absorbing material, and a groove having a groove-shaped cross-sectional shape and having grooves at the upper end and the lower end of the panels facing outward. In a moving partition including a frame member installed and a vertically movable member arranged in the frame member so as to be vertically movable, facing the floor or ceiling, and having a seal member at a tip end thereof and a sound absorbing material arranged inside thereof. , the elevation member thereof
The main body portion has a groove-shaped cross-sectional shape, the groove is directed inward, and an opening is provided on the surface facing the floor or ceiling side, and the sound absorbing material is arranged inside the opening, and the frame member is The lifting member main body has an overhanging portion projecting inside the groove , and the overhanging portion and the lifting member main body are configured so that the sound propagation path is diffracted, and the sound absorbing material propagates the sound. On the route
A moving partition having a seal structure characterized by being arranged . 2. A moving partition having a sealing structure according to claim 1 , wherein a sealing member of the lifting member installed on the floor side is made of metal. 3. A mobile partition having a sealing structure according to claim 1 or 2, characterized in that it has an opening in the bottom surface of the channel of the frame member. 4. The panel is hollow, the hollow portion is filled with a sound absorbing material, and the frame member and the panel are provided with an opening communicating with the hollow portion on a surface where they are in contact with each other. A moving partition having the seal structure according to claim 1 .