JP2008297709A - Shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the risk of deviating an intermediate door pull 3 having coiled springs 32a and 32b hooked thereon from guide rails 20a and 20b while enhancing the opening/closing operation characteristics of a shutter door 10. <P>SOLUTION: This shutter is equipped with the coiled springs 32a and 32b which urge the shutter door 10 in a closing direction when the shutter door 10 is opened, and which urge the shutter door 10 in an opening direction when the shutter door 10 is closed. One-side ends of the coiled springs 32a and 32b are locked to a casing 100 which is fitted with the shutter door 10, and the other-side ends of the coiled springs 32a and 32b are locked to the intermediate door pull 3. The shutter is equipped with a reinforcing plate 40 for integrating the intermediate door pull 3 with a terminal end-side slat 1 which is connected to the intermediate door pull 3. The intermediate door pull 3 is pressed against the reinforcing plate 40, and the slat 1 positioned on the terminal end-side of the intermediate door pull 3 is restrained by a U-shaped end 40b of the reinforcing plate 40. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  According to the present invention, a plurality of shutter door constituent members having a main body portion, a connecting concave portion, and a connecting convex portion are formed by extrusion molding of a resin material, and two adjacent shutter door constituent members are moved relative to each other in the longitudinal direction. Thus, the connecting concave portion of one shutter door constituent member and the connecting convex portion of the other shutter door constituent member are fitted to each other, thereby connecting the plurality of shutter door constituent members to each other to form the shutter door. Related to the shutter.

  In particular, the present invention relates to a shutter that can improve the opening / closing operability of the shutter door and reduce the risk that the shutter door constituent member to which the coil spring is locked will deviate from the guide rail.

  Conventionally, a plurality of shutter door constituent members having a main body, a connecting concave portion, and a connecting convex portion are formed by extrusion molding of a resin material, and two adjacent shutter door constituent members are relatively moved in the longitudinal direction. Thus, the connecting recess of one shutter door constituent member and the connecting convex portion of the other shutter door constituent member are fitted to each other, thereby connecting the plurality of shutter door constituent members to each other to form the shutter door. The shutter is known. An example of this type of shutter is disclosed in Japanese Patent Application Laid-Open No. 2005-133438, for example.

  In the shutter described in Japanese Patent Application Laid-Open No. 2005-133438, the connecting concave portion is disposed at the upper end of the shutter door constituent member (slat, pulling member), and the connecting convex portion is the shutter door constituent member (slat, pulling member). Located at the bottom. Furthermore, the handle part for opening and closing a plurality of mutually connected shutter door components (slats, handle members) is the most among the mutually connected shutter door components (slats, handle members). It is provided on a shutter door constituent member (a pulling member) disposed on the lower side. Specifically, the connecting convex portion of the shutter door constituent member (slat) not provided with the handle portion and the connecting concave portion of the shutter door constituent member (pull member) provided with the pull portion are fitted, A shutter door constituent member (slat) having no handle part and a shutter door constituent member (pull member) having a handle part are connected to each other.

JP 2005-133438 A

  Incidentally, in order to improve the shutter door opening / closing operability of the shutter described in JP-A-2005-133438, a guide rail for guiding the shutter door is provided, and the shutter door is opened when the shutter door is opened. It is preferable to bias in the closing direction and bias the shutter door in the opening direction when the shutter door is closed.

  To urge the shutter door to close when the shutter door is open, and to urge the shutter door to open when the shutter door is closed, for example, a coil spring is provided and the shutter door is attached A method is conceivable in which one end of the coil spring is locked to the frame body and the other end of the coil spring is locked to one shutter door constituent member among a plurality of shutter door constituent members connected to each other.

  In detail, for example, when about half of the opening of the housing is closed by the shutter door, the coil spring is locked so that the length of the coil spring becomes a natural length, so that the shutter door is opened by the tension of the coil spring when the shutter door is opened Can be urged in the direction of closing, and the shutter door can be urged in the direction of opening by the tension of the coil spring when the shutter door is closed.

  However, because of the structure of the shutter door constituent member, the other end of the coil spring cannot be locked at the center of gravity of the shutter door constituent member. Therefore, when the other end of the coil spring is locked to the shutter door constituent member, a moment accompanying the tension of the coil spring is applied to the shutter door constituent member when the shutter door is opened or closed.

  Specifically, when the other end of the coil spring is locked to one shutter door component, the moment accompanying the tension of the coil spring is concentrated on the shutter door component, and as a result, the shutter door component May deviate from the guide rail.

  In view of the above problems, the present invention provides a shutter capable of reducing the possibility that a shutter door constituent member to which a coil spring is locked deviates from a guide rail while improving the opening / closing operability of the shutter door. The purpose is to do.

  According to the first aspect of the present invention, a plurality of shutter door constituent members each having a main body portion, a connecting concave portion, and a connecting convex portion are formed by extrusion molding of a resin material, and two adjacent shutter door constituent members are formed. Are moved relative to each other in the longitudinal direction so that the connecting concave portion of one shutter door constituent member and the connecting convex portion of the other shutter door constituent member are fitted to each other. When the shutter is connected and configured as a shutter door, a guide rail is provided to guide the shutter door. When the shutter door is open, the guide rail is biased in the closing direction. When the shutter door is closed Two coil springs are provided to urge the shutter door in the opening direction, and two coil springs are attached to the housing on which the shutter door is mounted. One end is locked, and the other end of the two coil springs is locked to one shutter door constituent member among the plurality of shutter door constituent members connected to each other. A reinforcing plate is provided to integrate the locked shutter door constituent member and the adjacent shutter door constituent member connected to the shutter door constituent member, and the other ends of the two coil springs are engaged. In order to prevent the stopped shutter door constituent member from rotating relative to the adjacent shutter door constituent member, the shutter door constituent member to which the other ends of the two coil springs are locked is attached to the reinforcing plate. There is provided a shutter characterized in that an adjacent shutter door constituting member is restrained by an end portion of a reinforcing plate that is pressed and bent into a U-shape.

  According to the second aspect of the present invention, the through-hole is formed in the shutter door component, the through-hole is formed in the reinforcing plate, the bolt, and the nut having the female screw portion screwed with the male screw portion of the bolt, A ring-shaped member to which the other ends of the two coil springs are locked and a spacer are provided, and the male threaded portion of the bolt is a hole in the ring-shaped member, a hole in the spacer, a through hole in the reinforcing plate, and a shutter door component The ring-shaped member, the spacer, the reinforcing plate, and the shutter door constituent member are sandwiched by the screw head and nut of the bolt so that the reinforcing plate is positioned between the spacer and the shutter door constituent member. 2. The shutter according to claim 1, wherein the male screw portion of the bolt and the female screw portion of the nut are screwed together, and the reinforcing plate extends over substantially the entire length in the longitudinal direction of the shutter door constituting member. .

  According to the invention described in claim 3, the shutter door constituent member is formed so that the cross-sectional shape perpendicular to the longitudinal direction of the shutter door constituent member to which the other ends of the two coil springs are locked is concave. In addition, the shutter according to claim 1 or 2, wherein the reinforcing plate is bent so that the cross-sectional shape of the reinforcing plate is substantially complementary to the cross-sectional shape of the shutter door constituting member.

  In the shutter according to claim 1, a plurality of shutter door constituting members each having a main body portion, a connecting concave portion, and a connecting convex portion are formed by extrusion molding of a resin material. Further, by moving the two adjacent shutter door constituent members relative to each other in the longitudinal direction, the connecting concave portion of one shutter door constituent member and the connecting convex portion of the other shutter door constituent member are fitted, Thereby, a plurality of shutter door constituent members are connected to each other to form a shutter door. Further, a guide rail for guiding the shutter door is provided.

  Furthermore, in the shutter according to claim 1, when the shutter door is opened, the shutter door is biased in the closing direction, and when the shutter door is closed, the shutter door is biased in the opening direction. Two coil springs are provided. Specifically, one end of the two coil springs is locked to the casing on which the shutter door is mounted, and one shutter door constituent member among a plurality of shutter door constituent members connected to each other is provided. The other ends of the two coil springs are locked. Therefore, according to the shutter of claim 1, the opening / closing operability of the shutter door can be improved as compared with the case where the two coil springs are not provided.

  In the shutter according to claim 1, a shutter door constituent member in which the other ends of the two coil springs are locked, and an adjacent shutter door constituent member connected to the shutter door constituent member. A reinforcing plate for integration is provided. Specifically, the other end of the two coil springs is locked so that the shutter door constituent member to which the other ends of the two coil springs are locked cannot rotate with respect to the adjacent shutter door constituent member. The shutter door constituting member being pressed is pressed against the reinforcing plate, and the adjacent shutter door constituting member is restrained by the end portion of the reinforcing plate bent into a U-shape.

  In other words, when the reinforcing plate is not provided, the moment accompanying the tension of the two coil springs is concentrated on the shutter door constituent member in which the other ends of the two coil springs are locked. The shutter door constituting member may deviate from the guide rail, whereas the reinforcing plate is provided in the shutter according to claim 1, wherein the two moments associated with the tension of the two coil springs are two. The other end of the coil spring is dispersed to the shutter door constituent member, and the adjacent shutter door constituent member integrated by the reinforcing plate.

  Therefore, according to the shutter of the first aspect, the shutter door constituting member in which the other ends of the two coil springs are locked may deviate from the guide rail as compared with the case where the reinforcing plate is not provided. Can be reduced.

  That is, according to the shutter of the first aspect, the shutter door constituent member in which the other ends of the two coil springs are locked may be deviated from the guide rail while improving the opening / closing operability of the shutter door. Can be reduced.

  In the shutter according to claim 2, a through hole is formed in the shutter door constituting member, and a through hole is formed in the reinforcing plate. Furthermore, a bolt, a nut having a female screw portion that is screwed with a male screw portion of the bolt, a ring-shaped member that is engaged with the other ends of the two coil springs, and a spacer are provided. Moreover, the male thread part of the bolt is inserted into the hole of the ring-shaped member, the hole of the spacer, the through hole of the reinforcing plate, and the through hole of the shutter door constituting member.

  Furthermore, in the shutter according to claim 2, the ring-shaped member, the spacer, the reinforcing plate, and the shutter door constituting member are sandwiched by the screw head and the nut of the bolt, and the reinforcing plate is interposed between the spacer and the shutter door constituting member. So that the male screw portion of the bolt and the female screw portion of the nut are screwed together.

  In the shutter according to the second aspect, the reinforcing plate positioned between the spacer and the shutter door constituent member extends over substantially the entire length in the longitudinal direction of the shutter door constituent member.

  Therefore, according to the shutter according to claim 2, as the shutter door constituent member formed by extrusion molding of the resin material is brought into contact with the spacer, the stress accompanying the tension of the two coil springs is reduced. It can concentrate on the part which contacts a spacer among structural members, and can eliminate the possibility that a shutter door structural member may be damaged.

  Furthermore, according to the shutter according to claim 2, the shutter door structure in which the other ends of the two coil springs are locked as compared with the case where the reinforcing plate does not extend over substantially the entire length of the shutter door constituent member. It is possible to reduce the possibility that the member will be bent when the tension of the two coil springs is generated.

  In the shutter according to claim 3, the shutter door constituent member is formed so that the cross-sectional shape perpendicular to the longitudinal direction of the shutter door constituent member to which the other ends of the two coil springs are locked is concave. At the same time, the reinforcing plate is bent so that the cross-sectional shape of the reinforcing plate is substantially complementary to the cross-sectional shape of the shutter door constituting member.

  Therefore, according to the shutter of claim 3, the rigidity of the reinforcing plate is higher than that in the case where the reinforcing plate is not bent so that the cross-sectional shape of the reinforcing plate is substantially complementary to the cross-sectional shape of the shutter door component. Thus, it is possible to reduce the possibility that the shutter door constituting member, to which the other ends of the two coil springs are locked, will be bent when the tension of the two coil springs is generated.

  Hereinafter, a first embodiment of the shutter of the present invention will be described. 1 and 2 are views showing a housing 100 to which the shutter of the first embodiment is applied. Specifically, FIG. 1 is a view showing a state in which the shutter door 10 is almost closed, and FIG. 2 is a view showing a state in which the shutter door 10 is opened. More specifically, FIG. 1A is a perspective view of the housing 100 in a state in which the shutter door 10 is almost closed as viewed from the front right side and the upper side, and FIG. 1B is a state in which the shutter door 10 is substantially closed. FIG. 1C is a rear side view of the housing 100 in a state in which the shutter door 10 is substantially closed. 2A is a perspective view of the housing 100 with the shutter door 10 opened from the front right side and the upper side, and FIG. 2B shows the housing 100 with the shutter door 10 opened to the right rear side and FIG. 2C is a rear side view of the housing 100 in a state where the shutter door 10 is opened. FIG. 3 is an exploded perspective view of the shutter according to the first embodiment.

  1-3, 100a has shown the front side opening of the housing 100, 100b has shown the rear side opening of the housing 100, 100c has shown the left side wall of the housing 100, and 100d has shown the right side of the housing 100. Shows the wall. Reference numeral 1 denotes a slat as a shutter door constituting member constituting the shutter door 10, 2 denotes a handle as a shutter door constituting member constituting the shutter door 10, and 3 denotes a shutter door constituting the shutter door 10. An intermediate handle as a component is shown. Reference numerals 20 a and 20 b denote guide rails for guiding the shutter door 10. In the shutter of the first embodiment, as shown in FIG. 3, the left end portions of the slat 1, the handle 2 and the intermediate handle 3 constituting the shutter door 10 are inserted into the guide rail 20a, and the slat 1, the handle 2 and the intermediate door 3 are inserted. The right end of the handle 3 is inserted into the guide rail 20b.

  Also, in FIGS. 1 to 3, 30 is when the shutter door 10 is opened as shown in FIG. 2 (specifically, when the front opening 100 a of the housing 100 is not covered by the shutter door 10). When the shutter door 10 is biased in the closing direction and the shutter door 10 is closed as shown in FIG. 1 (specifically, when the front opening 100a of the casing 100 is covered by the shutter door 10). A balancer for energizing the shutter door 10 in the opening direction is shown. Reference numerals 32 a and 32 b denote coil springs constituting a part of the balancer 30. Reference numeral 31a denotes a locking member for locking one end of the coil spring 32a to the left side wall 100c of the casing 100. Reference numeral 31b denotes a locking member for locking one end of the coil spring 32b to the right side wall 100d of the casing 100. The locking member is shown. Reference numeral 33 denotes a ring-shaped member to which the other ends of the coil springs 32a and 32b are locked.

  Further, in FIGS. 1 to 3, reference numeral 34 denotes a bolt for fixing the ring-shaped member 33 to the intermediate handle 3 as a shutter door constituting member, and reference numeral 35 denotes a female screw that is screwed with a male screw portion of the bolt 34. The nut which has a part is shown. Reference numeral 40 denotes a reinforcement for integrating the intermediate handle 3 and the slat 1 located on the end side thereof (the lower side of FIGS. 1B, 1C, 2B, and 2C). The board is shown.

  FIG. 4 is a component diagram of the slat 1 as the shutter door constituting member shown in FIGS. Specifically, FIG. 4A is a front view of the slat 1, and FIG. 4B is a right side view of the slat 1. In FIG. 4, 1 a indicates a main body portion of the slat 1, 1 b indicates a connecting concave portion of the slat 1, and 1 c indicates a connecting convex portion of the slat 1. In the shutter of the first embodiment, a plurality of slats 1 are formed by extrusion molding of a resin material.

  FIG. 5 is a diagram showing how a plurality of slats 1 are connected to each other. Specifically, FIG. 5A is a front view showing a state in which a plurality of slats 1 are connected to each other, and FIG. 5B is a right side view of the plurality of slats 1 connected to each other. In the shutter according to the first embodiment, as shown in FIG. 5A, two adjacent slats 1 are moved relative to each other in the longitudinal direction (the left-right direction in FIG. 5A), whereby one slat 1 The connecting concave portion 1b and the connecting convex portion 1c of the other slat 1 are fitted together. As a result, as shown in FIG. 5B, the plurality of slats 1 are connected to each other.

  FIG. 6 is a component diagram of the handle 2 as the shutter door constituent member shown in FIGS. Specifically, FIG. 6A is a front view of the handle 2, and FIG. 6B is a right side view of the handle 2. In FIG. 6, 2 a indicates the main body of the pull handle 2, and 2 a 1 indicates a recess for the operator to put a finger on when the shutter door 10 is opened and closed. 2b shows the connection recessed part of the handle 2, and 2d has shown the door stop. In the shutter of the first embodiment, one handle 2 is formed by extrusion molding of a resin material.

  7 shows the slat 1 located on the most distal side (the lower side of FIGS. 1A, 2A, and 3) of the plurality of slats 1 shown in FIGS. It is the figure which showed a mode that the handle 2 was connected mutually. Specifically, FIG. 7A is a front view showing a state in which the slat 1 and the pull handle 2 located on the most distal side are connected to each other, and FIG. 7B is a view showing the slat 1 and the pull handle connected to each other. 2 is a right side view of FIG. In the shutter according to the first embodiment, as shown in FIG. 7A, the slat 1 and the handle 2 are moved relative to each other in the longitudinal direction (the left-right direction in FIG. 2b and the connection convex part 1c of the slat 1 are fitted. As a result, as shown in FIG. 7B, the slat 1 and the handle 2 are connected to each other.

  FIG. 8 is a component diagram of the intermediate handle 3 as the shutter door constituent member shown in FIGS. Specifically, FIG. 8A is a front view of the intermediate handle 3, and FIG. 8B is a right side view of the intermediate handle 2. In FIG. 8, 3 a indicates the main body of the intermediate handle 3, and 3 a 1 indicates a recess for fitting with a part of the reinforcing plate 40. Reference numeral 3a1a denotes a through hole for accommodating the male thread portion of the bolt 34, 3b denotes a connecting concave portion of the intermediate puller 3, and 3c denotes a connecting convex portion of the intermediate puller 3. In the shutter of the first embodiment, one intermediate handle 3 is formed by extrusion molding of a resin material, and a through hole 3a1a is formed in the recess 3a1 of the intermediate handle 3 by, for example, additional processing.

  9 is the most distal side (lower side of FIG. 1B, FIG. 1C, FIG. 2B, and FIG. 2C) of the plurality of slats 1 shown in FIG. The slat 1 positioned, the intermediate handle 3 shown in FIG. 8, and the tip side of the intermediate handle 3 (the upper side of FIGS. 1B, 1C, 2B, and 2C) It is the figure which showed a mode that the slat 1 located in FIG. Specifically, FIG. 9A is a front view showing a state in which the slat 1 located on the most distal side, the intermediate puller 3 and the slat 1 located on the front end side of the intermediate puller 3 are connected to each other. 9 (B) is a right side view of the slat 1 and the intermediate puller 3 connected to each other.

  In the shutter according to the first embodiment, as shown in FIG. 9 (A), the slat 1 and the intermediate puller 3 positioned on the most distal side (upper side of FIG. 9 (A)) are arranged in the longitudinal direction (FIG. 9 (A) The connecting concave portion 3b of the intermediate handle 3 and the connecting convex portion 1c of the slat 1 are fitted to each other. As a result, as shown in FIG. 9B, the slat 1 and the intermediate pull 3 that are located on the most distal side (the upper side of FIG. 9B) are connected to each other.

  Furthermore, in the shutter according to the first embodiment, as shown in FIG. 9A, the slat 1 and the intermediate handle 3 positioned on the distal end side (lower side of FIG. 9A) than the intermediate handle 3 are elongated. By relatively moving in the direction (left-right direction in FIG. 9A), the connecting convex portion 3c of the intermediate handle 3 and the connecting concave portion 1b of the slat 1 are fitted. As a result, as shown in FIG. 9B, the intermediate pull 3 and the slat 1 located on the tip side (lower side of FIG. 9B) than the intermediate pull 3 are connected to each other.

  In the shutter according to the first embodiment, as shown in FIGS. 5, 7, and 9, a plurality of slats 1, pullers 2, and intermediate pullers 3 are connected to each other to thereby form a shutter door 10 as shown in FIG. 3. Is configured. In the shutter according to the first embodiment, as illustrated in FIG. 1A, the intermediate handle 3 is not disposed in a portion of the shutter door 10 that covers the front opening 100a of the housing 100, but the second embodiment. In this shutter, it is also possible to arrange the intermediate handle 3 in place of several slats 1 covering the front opening 100a of the casing 100. Specifically, the hole 3a1a (see FIG. 8) is not formed in the intermediate handle 3 that covers the front opening 100a of the casing 100.

  Returning to the description of the shutter according to the first embodiment, FIG. 10 is a component diagram of the reinforcing plate 40 for integrating the intermediate handle 3 and the slat 1 located on the distal end side (the slat 1 located on the most distal side). It is. Specifically, FIG. 10A is a right side view of the reinforcing plate 40, FIG. 10B is a rear side view of the reinforcing plate 40, and FIG. 10C is the intermediate handle 3 and the slat 1 positioned on the end side thereof. It is the right view which showed a mode that the reinforcement board 40 was mounted | worn with respect to.

  In FIG. 10, reference numeral 40 a denotes a convex part for fitting with the concave part 3 a 1 of the intermediate handle 3, and 40 a 1 denotes a through hole for accommodating the male thread part of the bolt 34. Reference numeral 40b denotes a U-shaped end portion for constraining the connecting recess 1b of the slat 1 located on the most distal side (lower side in FIG. 10C), and 40c denotes a door stop. In the shutter according to the first embodiment, as illustrated in FIG. 10, a portion of the reinforcing plate 40 excluding the door stop 40 c is formed of, for example, a sheet metal. Furthermore, the door stop 40c formed by the flexible member is attached to the lower end of the end portion 40b by, for example, adhesion. In detail, the convex part 40a and the U-shaped end part 40b are formed by bending a flat member such as a sheet metal.

  FIG. 11 is a perspective view showing how the balancer 30 is fixed to the intermediate handle 3 and the reinforcing plate 40. Specifically, FIG. 11 is a perspective view of the housing 100 as viewed from the right rear side and the upper side. FIG. 12 is a partial right side view showing a state in which the balancer 30 is fixed to the intermediate handle 3 and the reinforcing plate 40.

  In the shutter according to the first embodiment, as shown in FIG. 11, the male thread portion of the bolt 34 is passed through the hole of the ring-shaped member 33, then the hole of the nut as the spacer 36, and then the reinforcing plate 40 holes 40a1 are passed, and then the holes 3a1a (see FIGS. 8 and 9) of the intermediate handle 3 are passed through and screwed into the female threaded portion of the nut 35. As a result, as shown in FIG. 12, the ring-shaped member 33, the spacer 36, the reinforcing plate 40, and the intermediate handle 3 are held between the screw heads of the bolts 34 and the nuts 35.

  Specifically, in the shutter according to the first embodiment, as shown in FIG. 12, the intermediate pull 3 is pressed against the reinforcing plate 40 by a bolt 34 and a nut 35. A reinforcing plate 40 is disposed between the spacer 36 and the intermediate handle 3. Furthermore, as shown in FIG. 11, the reinforcing plate 40 extends over almost the entire length of the intermediate handle 3 in the longitudinal direction.

  In the shutter according to the first embodiment, as shown in FIG. 12, the shaft portion in which no thread groove is formed is disposed between the male screw portion of the bolt 34 and the screw head, and a ring shape is formed around the shaft portion. Although the member 33 is arranged, in the shutter of the third embodiment, instead of the shaft part in which the screw groove is not formed, the ring-shaped member 33 is arranged around the male screw part of the bolt 34. Is also possible.

  In the shutter of the first embodiment, as shown in FIG. 11, a nut having an internal thread portion is used as the spacer 36. However, the shutter of the fourth embodiment has an internal thread portion instead. It is also possible to use a cylindrical member that is not used as the spacer 36.

  FIG. 13 is a view for explaining the moment applied to the intermediate pull 3. Specifically, FIG. 13A shows an intermediate handle when the shutter door 10 is closed as shown in FIG. 1 (specifically, when the front opening 100a of the housing 100 is covered by the shutter door 10). FIG. 13 (B) is a diagram for explaining the moment applied to 3 when the shutter door 10 is opened as shown in FIG. 2 (specifically, the front opening 100a of the housing 100 is covered by the shutter door 10). It is a figure for demonstrating the moment concerning an intermediate pull 3 when it is not).

  In the shutter according to the first embodiment, as shown in FIG. 1, when the shutter door 10 is closed, the shutter door 10 is opened by the coil springs 32 a and 32 b of the balancer 30 (as shown in FIG. 1A). (Upward). Therefore, according to the shutter of the first embodiment, the opening operability of the shutter door 10 can be improved as compared with the case where the coil springs 32a and 32b are not provided.

  However, if tension is generated in the coil springs 32a and 32b when the shutter door 10 is closed, a clockwise moment as indicated by an arrow in FIG.

  Temporarily, the intermediate puller 3 is not integrated with the slat 1 on the end side (lower side of FIG. 13A) of the intermediate puller 3 by the reinforcing plate 40. 13A, when the tension is generated in the coil springs 32a and 32b when the shutter door 10 is closed, an arrow is shown in FIG. 13A. Such a clockwise moment is concentrated on the intermediate pull 3 and the intermediate pull 3 may deviate from the guide rails 20a and 20b.

  In view of this point, the shutter of the first embodiment is configured such that the intermediate handle 3 cannot be rotated clockwise in FIG. 13A with respect to the slat 1 on the end side. Specifically, as shown in FIGS. 11 and 12, the intermediate handle 3 is pressed against the reinforcing plate 40 by the bolt 34 and the nut 35, and the connecting recess 1 b of the slat 1 on the distal side of the intermediate handle 3. However, the U-shaped end portion 40b of the reinforcing plate 40 is restrained.

  Therefore, in the shutter of the first embodiment, when tension is generated in the coil springs 32a and 32b when the shutter door 10 is closed, a clockwise moment as indicated by an arrow in FIG. And the slat 1 on the end side (lower side of FIG. 13A) of the intermediate handle 3 integrated by the reinforcing plate 40. Therefore, according to the shutter of the first embodiment, when the shutter door 10 is closed, the intermediate puller 3 is moved from the guide rails 20a and 20b (see FIG. 3) rather than the case where the reinforcing plate 40 is not provided. The risk of deviating can be reduced.

  In the shutter according to the first embodiment, as shown in FIG. 2, when the shutter door 10 is opened, the shutter door 10 is closed by the coil springs 32a and 32b of the balancer 30 (FIG. 2A). ) Downward). Therefore, according to the shutter of the first embodiment, the closing operability of the shutter door 10 can be improved as compared with the case where the coil springs 32a and 32b are not provided.

  However, if tension is generated in the coil springs 32a and 32b when the shutter door 10 is opened, a counterclockwise moment as shown by an arrow in FIG.

  Temporarily, the intermediate puller 3 is not integrated with the slat 1 on the end side (lower side of FIG. 13B) of the intermediate puller 3 by the reinforcing plate 40, and the intermediate puller 3 is not connected to the slat 1 on the end side. If the coil springs 32a and 32b are tensioned when the shutter door 10 is opened, the arrow is shown in FIG. 13B. As shown, the counterclockwise moment is concentrated on the intermediate pull 3 and the intermediate pull 3 may deviate from the guide rails 20a and 20b.

  In view of this point, the shutter of the first embodiment is configured such that the intermediate handle 3 cannot rotate counterclockwise in FIG. 13B with respect to the slat 1 on the end side. Specifically, as shown in FIGS. 11 and 12, the intermediate handle 3 is pressed against the reinforcing plate 40 by the bolt 34 and the nut 35, and the connecting recess 1 b of the slat 1 on the distal side of the intermediate handle 3. However, the U-shaped end portion 40b of the reinforcing plate 40 is restrained.

  Therefore, in the shutter according to the first embodiment, when tension is generated in the coil springs 32a and 32b when the shutter door 10 is opened, a counterclockwise moment as indicated by an arrow in FIG. 3 and the slat 1 on the end side (lower side of FIG. 13B) of the intermediate handle 3 integrated by the reinforcing plate 40. Therefore, according to the shutter of the first embodiment, when the shutter door 10 is opened, the intermediate puller 3 moves from the guide rails 20a and 20b (see FIG. 3), compared to the case where the reinforcing plate 40 is not provided. The risk of deviating can be reduced.

  Furthermore, in the shutter according to the first embodiment, as shown in FIG. 13B, the slat 1 in which the upper end portion of the reinforcing plate 40 is located on the distal end side (the upper side of FIG. 13B) with respect to the intermediate handle 3. It extends to the main body 1a. That is, the shutter according to the first embodiment is configured such that the intermediate handle 3 cannot rotate counterclockwise in FIG. 13B with respect to the slat 1 on the tip side.

  Therefore, in the shutter according to the first embodiment, when tension is generated in the coil springs 32a and 32b when the shutter door 10 is opened, a counterclockwise moment as indicated by an arrow in FIG. 3 and not only on the slats 1 on the end side (lower side in FIG. 13B) but also on the slats 1 on the tip side (upper side in FIG. 13B). Therefore, according to the shutter of the first embodiment, the upper end portion of the reinforcing plate 40 is not extended to the main body portion 1a of the slat 1 on the distal end side (upper side of FIG. 13B) of the intermediate handle 3. In addition, the possibility that the intermediate handle 3 deviates from the guide rails 20a and 20b (see FIG. 3) when the shutter door 10 is opened can be reduced.

  Further, in the shutter according to the first embodiment, as shown in FIGS. 11 and 12, the reinforcing plate 40 is disposed between the intermediate pull 3 and the spacer 36, and the intermediate pull 3 cannot be brought into contact with the spacer 36. Therefore, according to the shutter of the first embodiment, as the intermediate handle 3 formed by extruding the resin material is brought into contact with the spacer 36, the stress associated with the tension of the coil springs 32a and 32b is increased. 3, it is possible to eliminate the possibility that the intermediate handle 3 is damaged due to the concentration in the portion that contacts the spacer 36.

  Furthermore, in the shutter according to the first embodiment, as shown in FIG. 11, the reinforcing plate 40 positioned between the intermediate pull 3 and the spacer 36 is substantially in the longitudinal direction of the intermediate pull 3 (left and right direction in FIG. 11). It extends over the entire length. Therefore, according to the shutter of the first embodiment, the intermediate handle 3 is bent when the tension of the coil springs 32a and 32b is generated, compared to the case where the reinforcing plate 40 does not extend over almost the entire length of the intermediate handle 3 in the longitudinal direction. The fear can be reduced.

  Further, in the shutter according to the first embodiment, as shown in FIG. 12, the recess 3a is formed in the intermediate pull 3 so that the cross section of the intermediate pull 3 becomes concave, and the cross section of the reinforcing plate 40 is intermediate. A convex portion 40a is formed by bending so as to have a shape substantially complementary to the cross-sectional shape of the concave portion 3a of the handle 3. Therefore, according to the shutter of the first embodiment, the reinforcing plate 40 is not bent so that the cross-sectional shape of the reinforcing plate 40 is substantially complementary to the cross-sectional shape of the recess 3a of the intermediate handle 3. The rigidity of the reinforcing plate 40 can be improved, thereby reducing the possibility that the intermediate handle 3 will be bent when tension is generated in the coil springs 32a and 32b.

  In the fifth embodiment, the above-described first to fourth embodiments can be appropriately combined.

It is the figure which showed the state in which the shutter door 10 was substantially closed. It is the figure which showed the state by which the shutter door 10 was open | released. It is a disassembled perspective view of the shutter of 1st Embodiment. FIG. 4 is a component diagram of a slat 1 as a shutter door constituent member shown in FIGS. 1 to 3. It is the figure which showed a mode that the several slat 1 was connected mutually. FIG. 4 is a component diagram of a handle 2 as a shutter door constituent member shown in FIGS. 1 to 3. The slat 1 located on the most distal side (the lower side of FIGS. 1A, 2A, and 3) of the plurality of slats 1 shown in FIGS. 1 to 3 and the handle 2 shown in FIG. It is the figure which showed a mode that and were mutually connected. FIG. 4 is a component diagram of an intermediate handle 3 as a shutter door constituent member shown in FIGS. 1 to 3. The slat located on the most distal side (lower side of FIGS. 1B, 1C, 2B, and 2C) of the plurality of slats 1 shown in FIGS. 1, the intermediate handle 3 shown in FIG. 8, and the tip side of the intermediate handle 3 (the upper side of FIGS. 1B, 1 C, 2 B, and 2 C). It is the figure which showed a mode that the slat 1 was connected mutually. It is a component diagram of the reinforcement board 40 for integrating the intermediate pull 3 and the slat 1 located in the terminal end side (slat 1 located in the most terminal side). It is the perspective view which showed a mode that the balancer 30 was fixed with respect to the intermediate pull 3 and the reinforcement board 40. FIG. 3 is a right side view of a partial cross section showing a state in which a balancer 30 is fixed to an intermediate handle 3 and a reinforcing plate 40. FIG. It is a figure for demonstrating the moment concerning an intermediate pull.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slat 1a Main-body part 1b Connection recessed part 1c Connection convex part 2 Pull handle 2a Main body part 2a1 Recess 2b Connection concave part 2d Door contact 3 Intermediate pull 3a Main part 3a1 Recess 3a1a Hole 3b Connection concave part 3c Connection convex part 10 Shutter door 20a, 20b Guide rail 30 Balancer 31a, 31b Locking member 32a, 32b Coil spring 33 Ring-shaped member 34 Bolt 35 Nut 36 Spacer 40 Reinforcement plate 40a Projection 40a1 Hole 40b End 40c Door contact 100 Housing 100a Front opening 100b Rear opening 100c Left side wall 100d Right side wall

Claims (3)

Forming a plurality of shutter door constituent members having a main body portion, a connecting recess, and a connecting protrusion by extrusion molding of a resin material,
By relatively moving two adjacent shutter door constituent members in the longitudinal direction, the connecting concave portion of one shutter door constituent member and the connecting convex portion of the other shutter door constituent member are fitted, thereby In a shutter that connects a plurality of shutter door components to each other to form a shutter door,
A guide rail is provided to guide the shutter door,
Two coil springs are provided to urge the shutter door to close when the shutter door is open, and to urge the shutter door to open when the shutter door is closed,
Lock one end of the two coil springs against the housing on which the shutter door is mounted,
The other ends of the two coil springs are locked to one shutter door constituent member among the plurality of shutter door constituent members connected to each other,
Provide a reinforcing plate for integrating the shutter door constituent member to which the other ends of the two coil springs are locked and the adjacent shutter door constituent member connected to the shutter door constituent member;
Shutter in which the other ends of the two coil springs are locked in order to prevent the shutter door component in which the other ends of the two coil springs are locked from rotating relative to the adjacent shutter door component. A shutter which presses a door constituent member against a reinforcing plate and restrains an adjacent shutter door constituent member by an end portion of the reinforcing plate bent into a U-shape. Form a through hole in the shutter door component,
Through holes are formed in the reinforcing plate,
A bolt, a nut having a female thread portion screwed with a male thread portion of the bolt, a ring-shaped member to which the other ends of the two coil springs are engaged, and a spacer;
Insert the male thread part of the bolt into the hole of the ring-shaped member, the hole of the spacer, the through hole of the reinforcing plate, and the through hole of the shutter door component member,
The male screw portion of the bolt and the bolt-shaped screw head and nut hold the ring-shaped member, the spacer, the reinforcing plate, and the shutter door constituent member so that the reinforcing plate is positioned between the spacer and the shutter door constituent member. Screw the nut's female thread part,
The shutter according to claim 1, wherein the reinforcing plate extends over substantially the entire length in the longitudinal direction of the shutter door constituting member.   The shutter door constituent member is formed so that the cross-sectional shape perpendicular to the longitudinal direction of the shutter door constituent member to which the other ends of the two coil springs are locked is concave, and the cross-sectional shape of the reinforcing plate is the shutter door. The shutter according to claim 1 or 2, wherein the reinforcing plate is bent so as to have a shape substantially complementary to a cross-sectional shape of the constituent member.

Images