JP3968393B2 - Silent shutter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a silent shutter used for a shutter door of a sash window or a door of a garage. Specifically, when the shutter is opened and closed, it is possible to effectively prevent noise generated by collision between the shutter slats, sliding contact, or rattling generated between the shutter curtain and the guide rail when the shutter is closed. It relates to a silent shutter.
[0002]
[Prior art]
Conventionally, as a shutter 1 used for a shutter door of a sash window, a door of a garage, etc., as shown in FIG. 8, for example, a large number of shutter slats 2 formed by bending a long metal plate are connected. A shutter curtain 3 that is opened and closed vertically, a winding drum 4 around which the shutter curtain 3 is wound, and a shutter that is installed in the winding drum 4 and is mounted horizontally above the opening of a sash window or garage There is known a case 5 and a pair of groove-shaped guide rails 6 which are attached in the vertical direction on both sides of the opening and serve as an opening / closing guide for the shutter curtain 2.
[0003]
[Problems to be solved by the invention]
However, in the conventional shutter 1, the shutter curtain 3 for opening and closing the sash window and the opening of the garage is composed of the shutter slat 2 formed by bending a long metal plate, and the shutter curtain 3 Since the guide rail 6 serving as an opening / closing guide is also made of metal when the shutter is opened and closed, noise is generated when the shutter 1 is opened and closed due to collision and sliding contact between the shutter slats 2.
[0004]
Further, when a strong wind hits the shutter 1 with the shutter 1 closed, the shutter curtain 3 swings by the wind pressure and hits the guide rail 6 to generate a rattling sound.
[0005]
Shutters attached to sash windows and garages are often closed at night, so if the sound is rattled by strong winds at night, the noise not only affects the landlord but also the neighborhood. It was.
[0006]
Under such circumstances, there has been a strong demand for countermeasures against noise generated when the shutter is opened and closed, and noise caused by wind pressure in the closed state.
[0007]
The present invention has been made to meet such a demand. When the shutter is opened and closed, the noise generated by the collision between the shutter slats, the sliding contact, or the shutter curtain and the guide rail when the shutter is closed. It is an object of the present invention to provide a silent shutter that can effectively prevent a rattling sound generated between the two.
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the invention according to claim 1 is configured such that a shutter slat made of a long plate-like body having upper and lower pivoting portions is linked by freely pivoting the upper and lower pivoting portions. In a silent shutter having a shutter curtain connected in a number of shapes, a compound having a benzothiazyl group, a compound having a benzotriazole group, and a compound having a diphenyl acrylate group in a vertically pivoting portion where the shutter slats freely rotate together Alternatively , the gist of the present invention is a silent shutter characterized in that a vibration damping material including an active component made of a compound having a benzophenone group is disposed.
[0009]
The gist of the silent shutter according to claim 1 is characterized in that the damping material is in the shape of a bar or a thin plate corresponding to the inner shape of the vertical pivoting portion .
(Delete)
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the silent shutter of the present invention will be described in more detail in accordance with a preferred embodiment shown in the drawings. The silent shutter 11 shown in FIGS. 1 to 3 includes a shutter curtain 13 that can be opened and closed by connecting a large number of shutter slats 12, and the uppermost shutter slat 12 of the shutter curtain 13 is fixed with screws 17. A winding drum 14 around which the winding drum 13 is wound, a shutter case 15 which is internally mounted on the winding drum 14 and is mounted horizontally above the opening of a sash window or a garage, and the shutter mounted vertically on both sides of the opening. It consists of a pair of guide rails 16 that serve as opening / closing guides for the curtain 12.
[0012]
The shutter slat 12 is obtained by bending, that is, sheet metal processing, a long plate-like body having a predetermined vertical length and horizontal length. The upper pivot portion 12a and the upper pivot portion A plate-like portion 12b continuous with 12a, a draining portion 12c integrally provided at the lower end portion of the plate-like portion 12b, an oblique lower end portion 12d provided at the lower end portion of the plate-like portion 12b, and the oblique lower end It consists of a lower pivot portion 12e continuous with the lower end portion of the offset portion 12d.
[0013]
The upper pivot portion 12a is formed by bending the upper edge of the plate into a substantially circular cross-sectional shape, and a portion continuous with the lower portion of the upper pivot portion 12a is formed into a substantially linear cross-sectional shape, which is used as a plate-like portion 12b. Further, the lower edge of the plate-like portion 12b is folded back to form a draining portion 12c, and is bent obliquely downward from the folded upper portion to form an oblique lower end portion 12d. Moreover, the lower edge part which continued with the lower end part of the diagonally lower end part 14 was bend | folded by the substantially circular cross-sectional shape, and this was made into the lower pivot part 12e. The draining portion 12c is inside the oblique lower end portion 12d, and rainwater that has flowed down along the plate-like portion 12b falls from the draining portion 13.
[0014]
As shown in FIGS. 1 and 3, the shutter slat 12 rotates freely by fitting the lower pivot attachment portion 12 e of the upper shutter slat 12 adjacent to the upper and lower sides and the upper pivot attachment portion 12 a of the lower shutter slat 12. It is connected freely. The vibration damping material 20 is inserted into the lower pivot attaching portion 12e and the upper pivot attaching portion 12a to which the shutter slats 12 adjacent to each other are connected.
[0015]
As shown in FIGS. 1 to 3, the inner shapes of the loosely fitted lower pivot part 12 e and upper pivot part 12 a are substantially rod-shaped or thin plate-shaped. For this reason, it is desirable that the damping material 20 inserted and inserted into the lower pivot attachment portion 12e and the upper pivot attachment portion 12a also has a rod shape or a thin plate shape corresponding thereto.
[0016]
The damping material 20, a base material having viscoelastic properties, in order to further enhance the viscoelastic properties (damping performance), compounds having a benzothiazyl group, compounds having a benzotriazole group, a compound having a di-phenyl acrylate groups Alternatively, a compound containing an active ingredient composed of a compound having a benzophenone group is used. By disposing the damping material 20 in the lower pivot portion 12e and the upper pivot portion 12a, noise generated by collision between the shutter slats 12, sliding contact, or the shutter curtain 13 when the shutter 11 is closed. And rattling noise generated between the guide rail 16 and the guide rail 16 can be effectively prevented.
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[0018]
Examples of the base material of the damping material include polyvinyl chloride, chlorinated polyethylene (CPE), polypropylene (PP), polyamide (PA), polyester (PET), polycarbonate, epoxy, ethylene-vinyl acetate copolymer, poly Polymers such as methyl methacrylate, polyvinylidene fluoride, polyisoprene, polystyrene (PS), styrene-butadiene-acrylonitrile copolymer (ABS resin), styrene-acrylonitrile copolymer (AS resin), or acrylonitrile-butadiene rubber (NBR) ), Styrene-butadiene rubber (SBR), butadiene rubber (BR), natural rubber (NR), isoprene rubber (IR) and the like, or one kind thereof or a mixture thereof can be used.
[0019]
The active component is a component that dramatically increases the amount of dipole moment in the base material, the active component itself has a large dipole moment amount, or the active component itself has a small dipole moment amount, By blending the active component, it refers to a component that can dramatically increase the amount of dipole moment in the base material.
[0020]
FIG. 4 shows an arrangement state of the dipole 32 in the base material 31 before vibration energy (hereinafter simply referred to as energy) is transmitted. It can be said that the arrangement state of the dipole 32 is in a stable state.
[0021]
However, when the energy is transmitted, the dipole 32 existing inside the base material 31 is displaced, and each dipole 32 inside the base material 31 is placed in an unstable state as shown in FIG. As a result, each dipole 32 attempts to return to a stable state as shown in FIG.
[0022]
At this time, energy consumption occurs. It is considered that energy is absorbed through the displacement of the dipole inside the base material 31 and the energy consumption due to the restoring action of the dipole. Note that the occurrence of displacement in the dipole 32 means that each dipole 32 inside the base material 31 rotates or the phase shifts.
[0023]
From such a vibration damping mechanism, the greater the amount of dipole moment in the base material 31 as shown in FIGS. 4 and 5, the higher the damping property (damping performance) of the base material 31. It is considered to be.
[0024]
When the active ingredient is blended with the base material, the amount of dipole moment generated in the base material 31 is 3 times or 10 times under the same temperature and energy conditions as shown in FIG. Has the ability to increase in quantity. Along with this, the energy consumption due to the restoring action of the dipole when energy is transmitted will also increase dramatically, and it is considered that vibration absorption performance far exceeding prediction will occur.
[0025]
Examples of active ingredients that lead to such action and effects include N, N-dicyclohexylbenzothiazyl-2-sulfenamide (DCHBSA), 2-mercaptobenzothiazole (MBT), dibenzothiazyl sulfide (MBTS), N- Cyclohexylbenzothiazyl-2-sulfenamide (CBS), N-tert-butylbenzothiazyl-2-sulfenamide (BBS), N-oxydiethylenebenzothiazyl-2-sulfenamide (OBS), N , N-diisopropylbenzothiazyl-2-sulfenamide (DPBS) and other compounds having a benzothiazyl group, benzotriazole having an azole group bonded to the benzene ring as a parent nucleus, and 2- {2 having a phenyl group bonded thereto '-Hydroxy-3'-(3 ", 4", 5 ", 6" tetra Idrophthalimidomethyl) -5'-methylphenyl} -benzotriazole (2HPMMB), 2- {2'-hydroxy-5'-methylphenyl} -benzotriazole (2HMPB), 2- {2'-hydroxy-3'- t-butyl-5'-methylphenyl} -5-chlorobenzotriazole (2HBMPCB), 2- {2'-hydroxy-3 ', 5'-di-t-butylphenyl} -5-chlorobenzotriazole (2HDBPCB) Compounds having a benzotriazole group such as, compounds having a diphenyl acrylate group such as ethyl-2-cyano-3,3-diphenyl acrylate, or 2-hydroxy-4-methoxybenzophenone (HMBP), 2-hydroxy-4 -Methoxybenzophenone-5-sulfonic It can include one or more selected from among compounds having a benzophenone group, such as Sid (HMBPS).
[0026]
As a blending amount of the active ingredient for leading the above-described excellent vibration damping performance, it is desirable that the amount is 10 to 200 parts by weight with respect to 100 parts by weight of the base material. When the range of the amount of the active ingredient is, for example, less than 10 parts by weight, a sufficient effect of blending the active ingredient to increase the amount of dipole moment cannot be obtained. The active ingredient may not be sufficiently compatible with the base material.
[0027]
The damping material can be filled with an inorganic filler to control the viscoelastic properties of the base material. In addition, additives such as an antioxidant, a reinforcing agent / a reinforcing agent, an antistatic agent, a flame retardant, a lubricant, a foaming agent, and a coloring agent may be appropriately mixed with the vibration damping material as necessary. Examples of the inorganic filler include mica scale pieces, glass pieces, glass fibers, carbon fibers, calcium carbonate, barite, and precipitated barium sulfate.
[0028]
Although not shown in the drawing, a damping material may be disposed over the length direction of the guide rail 16 on the side surface of the guide rail 16 that contacts the shutter curtain 13. In this case, the vibration damping material arranged on the guide rail 16 cooperates with the vibration damping material 20 arranged in the lower pivot attachment portion 12e and the upper pivot attachment portion 12a, and the shutter curtain 13 and the guide rail 16 are connected. It becomes possible to more effectively prevent the sound with rattling that occurs between them.
[0029]
The scope of the present invention is not limited to the form shown in the drawings. For example, a damping material is attached to the entire surface of the plate-like portion 12b of the shutter slat 12, and the scope of the present invention is free within the scope described in “Claims”. Can be changed.
[0030]
【Example】
As shown in FIGS. 1 to 3, a shutter curtain 13 is formed by connecting up to 15 shutter slats 12 each having a length of 50 cm and a height of 3.4 cm. The shutter curtain 13 is provided in the lower pivot portion 12e and the upper pivot portion 12a. , ABS resin (Novaloy A1500, manufactured by Daicel Chemical Industries, Ltd.) as a base material, and CBS (Suncera-CM-G, Sanshin Chemical Industry Co., Ltd.) is blended at a weight ratio of 70/30 to this base material. a shutter curtain 13 (example) of arranging the damping material 20, as shown in FIG. 8, the shutter curtain 3 that does not place the damping material (Comparative example), the shutter curtain 13 of these examples and Comparative examples, The upper side of 3 is fixed and suspended, and the lower side is raised to the height of the upper side so that the shutter curtains 13 and 3 are substantially U-shaped.
[0031]
Next, the lower sides of the shutter curtains 13 and 3 were separated, and the noise level (dB) generated at that time was measured. The result is shown in FIG.
[0032]
From FIG. 7, the difference in noise level (dB) between the shutter curtain 13 according to the embodiment with the noise countermeasures shown in FIGS. 1 to 3 and the shutter curtain 3 according to the comparative example without the countermeasures shown in FIG. 8. Is about 8 dB .
[0033]
Accordingly, the shutter curtain 13 in which the vibration damping material 20 is disposed in the vertical pivoting portions 12a and 12e shown in FIGS. 1 to 3 is excellent in soundproofing, and the shutter in which the vibration damping material including the active component is disposed. It was confirmed that the curtain 13 is further excellent in soundproofing.
[0034]
【The invention's effect】
The silent shutter according to the present invention includes a compound having a benzothiazyl group, a compound having a benzotriazole group, a compound having a diphenyl acrylate group, or a compound having a benzophenone group in a vertically pivoting portion where the shutter slats freely swing. Since the damping material containing the active ingredient is arranged, when the shutter is opened and closed, the noise generated by the collision between the shutter slats, the sliding contact, or the shutter curtain and the guide rail when the shutter is closed The generated rattling sound can be effectively prevented.
[Brief description of the drawings]
FIG. 1 is a side view showing the entire silent shutter of the present invention.
FIG. 2 is an enlarged perspective view showing a shutter slat of the silent shutter according to the present invention.
FIG. 3 is an enlarged cross-sectional view of a main part showing a connecting portion of a shutter slat.
FIG. 4 is a schematic diagram showing a dipole in a base material.
FIG. 5 is a schematic diagram showing a state of a dipole in the base material when energy is applied.
FIG. 6 is a schematic diagram showing a dipole state in the base material when an active ingredient is blended.
FIG. 7 is a graph showing a result of measuring a noise level (dB) generated when the shutter curtain of the silent shutter according to Examples 1 and 2 and the shutter curtain according to the comparative example are swung.
FIG. 8 is a side view showing an entire conventional shutter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 12 ... Shutter slat 12a ... Upper pivot attachment part 12b ... Plate-shaped part 12c ... Draining part 12d ... Slant lower end part 12e ... Lower pivot attachment part 13 ... Shutter curtain 14 ... Take-up drum 15 ... Shutter case 16 ... Guide rail 20 ... Damping material

Claims (2)

In a silent shutter provided with a shutter curtain in which a plurality of shutter slats made of a long plate-like body having upper and lower pivot parts are connected in a chain manner by freely swinging the upper and lower pivot parts.
A control unit including an active ingredient composed of a compound having a benzothiazyl group, a compound having a benzotriazole group, a compound having a diphenyl acrylate group, or a compound having a benzophenone group in a vertically pivoting portion where the shutter slats are freely swingable. Silent shutter characterized by the placement of vibration material.   2. The silent shutter according to claim 1, wherein the damping material has a rod shape or a thin plate shape corresponding to the inner shape of the vertical pivoting portion.

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