JP2009155929A - Slat guide structure of guide rail - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate the defect of a conventional slat guide structure. <P>SOLUTION: This slat guide structure comprises a pair of mounting groove parts 13, 14 projecting from the front ends of the sides 10, 11 of a guide rail 1, respectively, a pair of guide members 4 attached to the mounting groove parts 13, 14, respectively. At least one guide member is made of resin. The resin guide member 4 comprises a base 40 inserted into the mounting groove parts 13, 14 and a pair of elastic tilted fins 41, 42 divergently extending on the outside of the mounting groove parts 13, 14. The pair of elastic tilted fins 41, 42 so diagonally extend as to cover the outer surfaces of the mounting groove parts 13, 14. The resin guide member 4 is brought into point-contact or line-contact with a slat 30 at the front ends of the elastic tilted fins 41, 42. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to a guide rail slat guide structure.

The shutter device opens and closes the opening by moving the both ends in the width direction of the shutter curtain formed by connecting slats up and down to guide rails standing on the left and right of the building opening. Since both the slats and the guide rails that make up the shutter curtain are made of metal, unpleasant noise will be generated by the metal contact between the slats and the guide rail when the shutter curtain is raised and lowered and when the building opening is fully closed. . Therefore, a slat guide structure for restricting direct contact between the slat and the guide rail is employed.

FIG. 2A is a diagram illustrating a shutter silencing structure using a conventional mohair. A mounting groove portion for mounting the mohair 4 ′ is formed on the tip side of the side sides 10, 11 of the guide rail 1, and the mohair 4 ′ is mounted in the mounting groove portion.

However, since the slat 30 and the mohair 4 ′ are always in contact with each other and the slat 30 passes through the mohair 4 ′, the mohair on the side where the interlock portion of the slat comes into contact with the mohair is used due to aging. Deterioration or loss of mohair hair may lead to an increase in the shutter opening / closing operation force, or a decrease in the muffler function.

A slat guide structure using resin instead of mohair has also been proposed. Patent Document 1 discloses a buffer member including an external buffer unit, an internal buffer unit, and a support unit that couples these. Patent Document 2 discloses a sliding band composed of a sliding contact portion and a soft portion. Patent Document 3 discloses a muffler band having an elastically deforming portion and a sliding portion.

However, since any guide member is in surface contact with the slat, there is a problem that the opening / closing operation force becomes heavy. In addition, when the slats are subjected to wind pressure or the like and come into contact with the end of the guide member in the guide groove of the guide rail, the end of the slat contacts the mounting groove (made of metal) formed integrally with the guide rail. There is a fear.
Shoko Sho 55-13598 JP 2005-256319 A JP 2004-204529 A

An object of the present invention is to eliminate the drawbacks of the conventional slat guide structure.

The present invention is a slat guide structure of a guide rail comprising a pair of mounting groove portions projecting toward the guide groove side at the front end of the guide rail and a pair of guide members mounted on the mounting groove portion. In addition, at least one guide member is made of resin, and the resin guide member includes a base inserted into the mounting groove and a pair of elastically deformable elastic members extending in an expanding shape outside the mounting groove. The pair of elastic fins extend so as to cover the outer surface of the mounting groove, and the resin guide member is in point contact or line contact with the slat at the tip of the elastic fin. It is characterized by being comprised. In the embodiment to be described later, an elastic inclined fin extending in an inclined shape is illustrated as the elastic fin.

In one aspect, a clearance is formed between the slat and the tip of the elastic fin in a state where no surface pressure is applied to the slat in the guide groove.

When surface pressure is applied to the slat during normal opening / closing of the shutter or when the opening is fully closed, the end of the slat received in the guide groove is in sliding contact with the tip of the elastic fin by point contact or line contact. Therefore, compared to the case where the slat and the guide member are in surface contact, there are less scratching noises and flapping noises during opening and closing, and less opening and closing operation force is required. In addition, since the elastic fin is elastically deformed, the impact at the time of contact is alleviated, so that a fluttering sound when the slat is shaken by wind pressure or the like is also reduced.

Since the elastic fin extends so as to cover the outer surface of the mounting groove, when the slat end contacts the elastic fin, the elastically deformed elastic fin contacts the outer surface of the mounting groove, so that the slat end Prevents direct contact with the outer surface of the mounting groove. Further, since the impact at the time of contact is absorbed by the elastic deformation of the elastic fin located outside the mounting groove, it is not necessary to depend on the elastic deformation of the element located in the mounting groove in the shock absorption, and the protruding dimension of the mounting groove is set. The mounting groove can be designed compactly.

When no surface pressure is applied to the slats in the guide groove, a clearance is formed between the slats and the tips of the elastic fins to prevent the elastic fins from always contacting the end of the slats. Reduces friction.

FIG. 1 is a front view and a side view of the window shutter device. The window shutter device includes a long guide rail 1 standing on the left and right ends of a building opening, a shutter case 2 provided above the building opening, and a winding provided in the shutter case 2 in the horizontal direction. A take-up shaft (not shown) and an upper end of the shutter shaft 3 are connected to the take-up shaft, and both end portions in the width direction are raised and lowered while being guided by the grooves of the guide rail 1 to open and close the opening. The shutter curtain 3 is configured by connecting a plurality of slats 30 vertically.

As shown in FIG. 2 (B), the guide rail 1 is formed in a U-shaped cross-sectional view from opposing sides 10 and 11 and a base 12 connecting the base ends of the sides 10 and 11. The end portion of the slat 30 is received in the guide groove formed between the opposing side edges 10 and 11, and the end portion of the slat is guided up and down. Mounting groove portions 13 and 14 for mounting the guide member 4 are formed on the leading ends of the side edges 10 and 11 so as to face each other. The mounting grooves 13 and 14 extend vertically along the length direction of the guide rail 1.

As shown in FIG. 4, the mounting groove portion 14 is composed of projecting pieces 15 and 16 integrally formed on the distal end side of the side edge 11 so as to be opposed to each other with a predetermined interval in the extending direction of the side edge 11. Bending pieces 150 and 160 are formed by bending the tip portions of the pieces 15 and 16 toward each other, and the guide member 4 is received from the protruding pieces 15 and 16 and the bending pieces 150 and 160 and attached. A pocket P is formed. An opening groove 17 that extends in the length direction of the guide rail 1 is formed between the bent pieces 150 and 160. In FIG. 4, only the mounting groove 14 on one side 11 is shown, but the basic configuration of the mounting grooves 13 and 14 is substantially the same except that the shape appears symmetrical. The description of the groove portion 14 can be used for the description of the mounting groove portion 13.

The guide member 4 is formed of a hard resin that is slippery and excellent in wear resistance and weather resistance. Examples of the resin used for the guide member 4 include high-density polyethylene, EVA, slidable elastomer, and vinyl chloride. The guide member 4 is a long member extending up and down along the length direction of the guide rail 1 and is typically formed from an extruded material made of hard resin.

FIG. 3 shows a cross-sectional shape of the guide member 4. The guide member 4 includes a base 40 and a pair of elastic inclined fins 41 and 42 extending from the base 40 so as to expand. Both the base 40 and the elastic inclined fins 41 and 42 are long materials extending along the length direction of the guide rail 1. The pair of elastic inclined fins 41, 42 extends in an inclined manner so that the distal ends thereof are separated from each other, and contact portions 410, 420 made of curved convex surfaces are formed at the distal ends of the respective elastic inclined fins 41, 42. ing. When the guide member 4 is mounted in the mounting groove portions 13 and 14, the base 40 is positioned inside the mounting groove portions 13 and 14 (pocket P), and the pair of elastic inclined fins 41 and 42 are positioned outside the mounting groove portions 13 and 14. Will be. In the illustrated example, the elastic inclined fins 41 and 42 extend at an angle of 10 degrees with respect to the width direction of the base 40 (the extending direction of the side 11 in a cross-sectional view). 42 expands at an angle of 160 degrees.

The base 40 has a cross-sectional shape that can be inserted into the pocket P. The base 40 may be fixed by bonding a plurality of portions in the height direction of the rear surface 400 of the base 40 to the rear wall of the pocket P of the mounting groove portion 14 with an adhesive or the like. The front side of the base 40 is formed in a narrow front part 401, and the front part 401 faces the opening groove 17. A connecting piece 402 is integrally formed on the front surface portion 401 of the base 40. The connecting piece 402 extends from the pocket P toward the guide groove portion in the opening groove 17, and the base end portions of the pair of elastic inclined fins 41 and 42 are connected to the distal end of the connecting piece 402. As shown in FIG. 4, the base end portions of the pair of elastic inclined fins 41 and 42 are positioned outside the opening groove 17 (outside the surface passing through the outer surfaces of the bent pieces 150 and 160).

The elastic inclined fins 41, 42 extend in an inclined manner while facing the outer surfaces of the bent pieces 150, 160 of the mounting groove 14 (FIG. 4A), and contact portions at the tips of the elastic inclined fins 41, 42. When 410 and 420 contact the slat 30 and the elastic inclined fins 41 and 42 elastically deform, the elastic inclined fins 41 and 42 come into contact with and cover the outer surfaces of the bent pieces 150 and 160 ( FIG. 4 (B)). As shown in FIG. 4B, the extension dimension of the elastic inclined fins 41 and 42 in a cross-sectional view is such that the elastic inclined fins 41 and 42 are bent pieces 150 and 160 when the elastic inclined fins 41 and 42 are elastically deformed. It is the dimension which can cover the whole outer surface of.

As shown in FIG. 4A, in a normal state where the end portion of the slat 30 is received in the guide groove of the guide rail 1 and no surface pressure such as wind pressure acts on the slat 30, The contact portions 410 and 420 at the tips of the elastic inclined fins 41 and 42 are close to and opposed to the end portions of the slats 30 with clearance C therebetween. When the slat 30 shifts in the groove width direction in the guide groove, the contact portions 410 and 420 at the tips of the elastic inclined fins 41 and 42 are in point contact or line contact with the slat 30 as shown in FIG. It will be elastically deformed. In other words, the elastic inclined fins 41 and 42 are expanded in a cross-sectional view “in the shape of a letter“ C ”when the external force shown in FIG. When the portions 410 and 420 come into contact with the end portions of the slats, the elastic inclined fins 41 and 42 are elastically deformed so as to be crushed as shown in FIG.

When the contact portions 410 and 420 at the tips of the elastic inclined fins 41 and 42 come into contact with the end portions of the slats 30, the elastic inclined fins 41 and 42 are elastically deformed to function as cushions and absorb the impact at the time of contact, The contact between the contact portions 410 and 420 at the tips of the elastic inclined fins 41 and 42 and the slat end portions is alleviated. In the illustrated embodiment, the contact portions 410 and 420 are formed on curved convex surfaces, so that friction during opening and closing is reduced as much as possible.

Further, since the clearance C is provided, the contact portions 410 and 420 at the tips of the elastic inclined fins 41 and 42 do not always contact the slats when the shutter curtain is opened and closed, and the slats 30 swing back and forth due to wind pressure or the like. Since the contact portions 410 and 420 at the tips of the elastic inclined fins 41 and 42 are in sliding contact with the slats 30 by point contact or line contact, the frictional force during opening and closing is reduced, and the opening and closing operation force is not particularly heavy. .

Further, even if the elastic inclined fins 41 and 42 are elastically deformed by contact with the slats 30, the elastic inclined fins 41 and 42 are elastically deformed so as to contact the bent pieces 150 and 160. Elastic slanting fins 41 and 42 are interposed between 150 and 160, so that the slat 30 does not directly contact the outer surfaces of the mounting groove portions 13 and 14 of the guide rail 1 and is uncomfortable due to contact between metals. Noise is prevented from being generated. FIG. 5 shows a case where the end portion of the slat 30 comes into contact with the guide member 4. Even in such a case, one of the pair of elastic inclined fins 41 and 42 contacts the slat 30. Since it is elastically deformed and contacts one of the outer surfaces of the bent pieces 150 and 160, the slat 30 does not directly contact the bent pieces 150 and 160 of the guide rail 1.

FIG. 6 is a diagram showing another embodiment of the present invention. The mounting groove 13 on one side 10 is mounted with a mohair 4 ′ planted on the base 40 ′, and the mounting groove 14 on the other side 11 is mounted with the guide member 4 according to the present invention. Yes. As shown in the lower part of FIG. 6, an interlock part 30A for connecting the slats 30 in the vertical direction is formed above and below the slats 30, and a guide member 4 is provided on the side where the interlock part 30A is located. A mohair 4 'is provided on the side of the slat 30 where the bulged surface portion is located. In the slat guide structure of FIG. 6, one guide member is formed from the mohair 4 ′, but since the bulging surface portion of the slat 30 is in sliding contact with the mohair 4 ′, the interlock portion 30 </ b> A is in sliding contact In comparison, the mohair 4 'is less deteriorated over time, and therefore, an increase in the shutter opening / closing operation force and a decrease in the silencing function are suppressed.

The present invention can be used for a slat guide structure of a guide rail.

It is the front view and side view of a window shutter apparatus. (A) It is a figure which shows the slat guide structure using the conventional mohair, (B) It is a figure which shows the slat guide structure which concerns on this invention. It is sectional drawing of the guide member which concerns on this invention. (A) A normal slat guide structure is shown, and a clearance is formed between the guide member and the slat. (B) It is a figure which shows the state which the slat contacted the elastic inclination fin of a guide member, and the elastic inclination fin of the guide member elastically deformed. It is a figure which shows the state which received the wind pressure etc. and the slat contacted the elastic inclination fin of a guide member, and the elastic inclination fin of the guide member elastically deformed. It is a figure which shows the slat guide structure which concerns on other embodiment of this invention.

Explanation of symbols

1 guide rail 4 guide member 40 base 41 elastic inclined fin 42 elastic inclined fin 10 side 11 side 13 mounting groove 14 mounting groove

Claims (2)

A guide rail slat guide structure comprising a pair of mounting groove portions projecting toward the guide groove side at the distal end of the guide rail, and a pair of guide members mounted on the mounting groove portion,
At least one guide member is made of resin, and the resin guide member includes a base that is inserted into the mounting groove, and a pair of elastically deformable elastic fins that extend outwardly from the mounting groove. Consists of
The pair of elastic fins extend so as to cover the outer surface of the mounting groove, and the resin guide member is configured to be in point contact or line contact with the slat at the tip of the elastic fin. Characteristic slat guide structure.   The slat guide structure according to claim 1, wherein a clearance is formed between the slat and the tip of the elastic fin in a state where no surface pressure is applied to the slat in the guide groove.

Images