JP2018003415A - Assembling-fixing method of louver material in louver device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce production cost of a constitution mechanism for adjusting an installation inclination angle of a louver material, by executing a change adjustment of the installation inclination angle of the louver material by simple operation work.SOLUTION: An intermediate member provided by being connected to a central part on one end side in the longitudinal direction of a louver material is formed in a polygonal high nut shape equipping a screw hole in an axial part in a polygonal column shape, an U-shaped fitting groove for slidably fitting a part of projecting from a side end surface of the louver material of the intermediate member assembled in the louver material is formed in an uplifting wall of a mullion for assembling, supporting and installing the louver material, the louver material is set as a desired inclination angle, and the intermediate member of its louver material is fitted to a U-shaped type fitting groove formed on the uplifting wall of the mullion, and is held at the above-mentioned inclination angle.SELECTED DRAWING: Figure 12

Description

  The present invention relates to a louver device that is installed on the outer surface of a building, a rooftop, or the like for light shielding or blindfolding, and the louver material in the louver device for the assembly machine frame constituting the skeleton of the louver device is fixed in a parallel state. The present invention relates to an assembly fixing means for a louver material for mounting.

  For example, as shown in FIG. 1 of Japanese Patent Application Laid-Open No. 2003-314017, the louver material assembling and fixing means in the louver device has a longitudinal length of the louver material a that is extruded into a desired blade plate shape. An insertion port b in which the inner wall surface is formed in a square hole shape is formed in the center portion in the width direction on the end face of the direction edge, and the outer peripheral surface is formed in a rectangular tube shape that fits the insertion port b. The rectangular tube-shaped intermediate member c formed in the engagement hole having the engagement groove c ′ along the axial direction on the inner peripheral side is fitted and fixedly attached with the mounting screw b ′ or the like.

  Then, with respect to the engagement hole in the inner cavity of the intermediate member c, the outer peripheral surface is fitted with the engagement groove c ′ on the inner peripheral surface of the engagement hole of the intermediate member c to prevent movement around the axis. The distal end side of the second shaft-shaped intermediate member d provided with the engaging groove d ′ is fitted and the second intermediate member d is integrated with the first intermediate member c having the rectangular tube shape. Combined. Then, a mounting bracket e in which the base end side of the second intermediate member d is integrally assembled to the base end side is attached to a frame f of the assembly machine frame of the louver device A to attach a mounting bolt or the like. By assembling integrally through the metal fitting g, the louver material a is assembled and fixed to the stand f.

  Assembling and fixing means of the louver material a with respect to the frame f of the assembly machine frame includes a square tube-shaped first intermediate member c installed at the central portion of the side end surface of the louver material a, and a front end side fitted thereto. An attachment for connecting and fixing the shaft intermediate second intermediate member d, which is inserted and fitted and connected, to the base end side of the shaft intermediate member d, and connecting and fixing the second intermediate member d to the frame f of the assembly machine frame Many kinds of assembly parts such as metal fittings g are required, and the number of processing steps is increased, resulting in high costs.

  Further, in the means of Japanese Patent Application Laid-Open No. 2006-249768, which is another means of the prior art, for assembling the louver material a formed into a blade plate shape by extrusion molding of a metal material to the vertical f. One end of the louver material a is inserted into a side end surface opening (insertion port) b for forming the inner peripheral wall formed in the central portion of the side end surface in the longitudinal direction into a rectangular tube shape, and the opening b which is the insertion port. The intermediate member c having a rectangular tube shape integrally coupled to the louver and the other end side of the intermediate member c are attached to the other end side of the intermediate member c so as to be assembled and held with respect to the vertical f. In order to adjust the assembling inclination angle of the louver material a that can be mounted on and supported by the assembly f through the assembly fitting g such as a leaf spring and a screw or a bolt and the assembly fitting g, Disc mounted and mounted on the wall A mounting member (base plate) h of are those equipped with.

  And the adjustment of the inclination angle of the louver material a when the louver material a is assembled and held on the vertical f is provided on the other end side of the intermediate member c assembled integrally with the louver material a and the vertical f. The connection with the mounting member h, which is a disk-shaped base plate, is removed by a screw, and the assembly of the louver material a with respect to the vertical f is released, and the louver material a together with the intermediate member c and the axis of the intermediate member c Rotating to the center, thereby changing and adjusting the mounting inclination angle with respect to the vertical f, when the desired inclination angle is reached, the mounting louver material a is changed by re-fastening the mounting bracket g such as a screw. It is trying to hold it.

  For this reason, in order to adjust the inclination angle at which the mounted louver is attached to a desired inclination angle, the front end side of the intermediate member c fitted in the opening b (insertion opening) on the side end surface of the louver material a is set up vertically. The connection with the disk-shaped base plate h assembled to f is removed from the base plate h, the intermediate member c is pulled out, and the louver material a that is integrally connected to the intermediate member c, together with the intermediate member c, Rotate the shaft center line along the longitudinal direction of the intermediate member c, change the mounting inclination angle of the louver material a to the mounting machine frame (stand) f to the assembly surface as desired, Various operations for fastening and binding with a mounting bracket g such as a screw are required for the disk-shaped base plate h assembled to the vertical f at the front end side of the member c, similarly to the first conventional means described above. For adjusting the mounting angle of the louver material a, Consuming while, and the intermediate member c, disc-shaped base plate h, mounting bracket g, and requires various members etc., in which a problem that production cost is increased.

JP 2003-314017 A JP 2006-249768 A

  The problem to be solved by the present invention is that, as described in the above description of the conventional example, there are many operation means for changing and adjusting the mounting inclination angle of the louver material that is assembled and supported with respect to the frame of the assembly machine frame. Because it is a troublesome and troublesome work that requires the detaching work of various types of components, and the construction mechanism for adjusting the inclination angle of this louver material is complicated, there is a problem that the production cost increases. It is an object of the present invention to solve this problem, to easily adjust the mounting angle of the louver, and to reduce the production cost of the constituent mechanism of the means for adjusting the mounting angle.

As a method means for solving this problem, in the present invention, an intermediate member provided to be connected to the central portion in the width direction of the side end face on one end side in the longitudinal direction of the louver material is provided at least on the side of the louver material. The outer peripheral surface of the portion protruding from the end surface is a polygonal column shape having a plurality of symmetrical column wall surfaces such as hexagons and octagons, and the fastening bolts are screwed into the shaft core portion from the end surface on the protruding end side of the intermediate member. It is formed in a polygonal high nut shape equipped with screw holes to be screwed in, and protrudes from the side end face of the louver material of the intermediate member assembled to the louver material on the upright wall where the louver material is assembled and supported A U-shaped fitting groove that slidably fits the column wall of the outer peripheral surface of the part is formed, and the louver material is rotated around the axis of the intermediate shaft that is connected to the desired groove. And the inclination angle The intermediate member of the louver material in the inclined state is fitted into the U-shaped fitting groove formed on the upright wall of the vertical and held at the above-mentioned inclination angle, and is intermediated by fastening with a fastening bolt. The present invention proposes a fixing method for assembling a louver material in a louver device, wherein a member is fixedly attached to a vertical wall of a vertical wall.
Along with this, a U-shaped fitting groove is formed on the upright wall of the upright to slidably fit the protruding portion of the intermediate member protruding from the side end surface of the louver material. A second fitting groove having a narrow width is formed in the outer portion of the U-shaped fitting groove, into which a fastening bolt screwed from the end face on the front end side of the intermediate member is fitted, and the second fitting is performed. An engaging wall that abuts the end surface on the front end side of the intermediate member is formed in a step shape around the mating groove, and the end surface on the front end side of the intermediate member that is fitted into the U-shaped fitting wall is connected to the engagement groove. A fixing method for assembling the louver material in the louver device, wherein the louver material and the intermediate member can be fastened by screwing in a state where the louver material and the intermediate member are temporarily fixed by abutting against the wall. Is to raise.
Still further, an assembly support on the distal end side of the intermediate member with respect to the central portion of the side end portion of the louver material is integrally assembled to the side end portion on one side of the louver material via a shaft tube-shaped shaft tube member. And the inner wall surface of the shaft tube member is fitted with the column wall surface formed on the outer peripheral surface of the intermediate member, and the shaft core wire can be freely set in a state in which the rotation around the center member is prevented. An engaging ridge that is slid in the direction is formed, and the distal end side of the shaft tube member is inserted into a shaft hole provided in a shaft core portion of the shaft tube member, and a set screw that is provided in the louver material is screwed The louver material integrally assembled to the intermediate member is fixed to the vertical frame by preventing the intermediate member from sliding relative to the shaft tube member, which is the mounting bracket of the intermediate member. A louver installed and mounted at that time A louver material assembling and fixing method in a louver device, wherein the louver material can be assembled with a mounting inclination angle selected and set by rotation about the axial center line with respect to the vertical of the material and intermediate member Is to raise.

  In the means of the present invention configured as described above, in the first means, the louver material and its side end portions (in the case where the louver material is aligned and supported in a vertical posture, The intermediate member provided at the end) is rotated by a desired angular amount about the center axis of the intermediate member, and in this state, the outer peripheral surface on the proximal end side of the intermediate member is provided on the vertical wall When fitted into the U-shaped fitting groove, the louver material is held at the mounting inclination angle set by the rotation angle thereof. Then, tightening the fastening bolt screwed into the shaft hole of the intermediate member and fastening the intermediate member to the upright wall of the upright will complete the assembly of the louver material. Adjustment work and assembly mechanism shall be simplified.

  Further, in the second invention means, the base end side is fitted to the side end face of the louver, and the distal end side of the fixed intermediate member is fitted into a U-shaped groove provided on the standing upright wall, The end of the intermediate member is fastened to the rising wall with fastening bolts and the louver material is assembled in a vertical manner, and the end surface on the leading end side of the intermediate member is formed in the vertical rising wall. In the state where it is abutted against the wall surface of the engagement wall formed at the outer position of the shaped fitting groove and the position is temporarily fixed, the intermediate member can be tightened with the tightening bolt, so the louver material can be tightened with the tightening bolt. You will be able to do it well.

  In the third means of the present invention, in the state where the intermediate member is fastened to the vertical wall by the fastening bolt and the louver material is assembled and held at a desired inclination angle, the base end side of the intermediate member is With respect to the shaft tube member fixedly attached to the side end of the louver material, the fixing means such as a set screw is released so that the base member side of the intermediate member and the shaft tube member can slide freely. If the material is slid with respect to the vertical, the gap between the side end surface of the louver material and the wall surface of the vertical will be adjusted as desired, so in a state where the louver material is held at a desired mounting angle, Adjustment of the space between the louver material and the wall surface of the vertical wall can be easily performed.

It is the perspective view which fractured | ruptured the principal part of the conventional means partially. It is the perspective view which fractured | ruptured the principal part of another conventional means partially. It is the perspective view which fractured | ruptured the principal part of the Example which implements a means of this invention. It is the front view which fractured | ruptured the principal part of the Example same as the above. It is a vertical side view of the louver material of an Example same as the above. It is the expanded vertical side view of the center part of a louver material same as the above. It is a vertical side view of the center part of a louver material same as the above. It is a perspective view of the intermediate member assembled | attached to the side edge part of a louver material same as the above. It is a top view at the time of the state which fitted the front-end | tip part of the intermediate member same as the above in the fitting groove provided in the standing upright wall. It is a vertical side view at the time of the state which made the front-end | tip part of the intermediate member same as the above fit in the fitting groove provided in the standing wall. It is a vertical side view at the time of the state which rotated the intermediate member same as the above on the axis line center, and was fitted to the fitting groove. It is the perspective view which a part of principal part fractured | ruptured of another Example. It is a top view of the state which made the front end side of the intermediate member fitted to the fitting groove provided in the standing | upright wall of the Example same as the above. It is a vertical side view at the time of the same state of an Example same as the above.

  Next, embodiments will be described in detail with reference to the drawings.

  FIG. 3 is a perspective view of an essential part of the embodiment of the means of the present invention, partly broken and omitted. In FIG. 3, reference numeral 1 indicates the whole louver device, reference numeral 2 indicates an assembly machine frame of the louver device 1, and 3 indicates a frame provided on the assembly machine frame 2, and 4 indicates the frame. 3 is a louver material that can be assembled to the upright wall 4 and supported on the upright 3.

  The assembling machine frame 2 is a machine frame that constitutes an assembly machine frame for assembling the louver device 1 when the louver device 1 is mounted on the outer surface of the building frame or on the rooftop. It is also an assembly machine frame that is held at an angle and supported, and a machine frame 2 that uses appropriate members such as pillar materials attached to the outer surface of the building, a machine frame of a separately constructed structure, and a frame 3 that is assembled to it It becomes more.

  The upright wall 4 for assembling and supporting the distal end side of the intermediate member 7 that connects and attaches the proximal end side to the assembling members 6 provided at both ends in the longitudinal direction of the louver material 5 is provided in the vertical wall 3. Louver material provided at each outer position of both longitudinal ends of 5 and arranged so that the upright walls 4 are opposed to each other and arranged in parallel with each other in a vertical or horizontal manner Square tube in which the base end side is fixedly attached to the above-described assembly member 6 to be assembled and installed at each side end portion (upper and lower end portions when the louver material 5 is mounted in a vertical manner). 9 to 11, the base end side of the intermediate member 7 is fitted and fixed in a U-shaped fitting groove 8 mounted on the end edge of each rising wall 4. So, assembling support of the louver material 5 is performed It is.

  The louver material 5 is formed into a hollow vane plate shape by extrusion molding of a metal material such as a light metal material, as shown in the cross sectional view of FIG. The shaft-shaped assembly member 6 having the axial direction along the longitudinal direction is mounted in a fixed state.

  In this example, the assembly member 6 is formed integrally with the louver material 5 when the louver material 5 is formed by extrusion molding from a metal material, whereby the longitudinal direction of the louver material 5 is obtained. When the molded louver material 5 is cut to a desired length and is formed so as to penetrate the shaft core portion in the longitudinal direction, In the state in which the attachment member 6 is continuous with the louver member 5, it is exposed at the cutting edge.

  This assembly member 6 is for connecting and mounting an intermediate member 7 formed in a rectangular tube shape for attaching the louver material 5 to the upright wall 4, and the outer peripheral surface side is a cylindrical surface, a prism Although it may be formed in an appropriate shape such as a surface, a shaft hole 60 into which the rectangular tube-shaped intermediate member 7 is slidably fitted is formed in the axial center portion thereof. Further, the inner wall surface of the shaft hole 60 is engaged with a column surface or a ridge line of the outer peripheral surface of the rectangular tube-shaped intermediate member 7 fitted into the shaft hole 60, and the center of the shaft core line of the intermediate member 7 is engaged. An engagement groove 61 for preventing rotation is formed.

  As shown in FIGS. 3 and 4, the proximal end side of the intermediate member 7 fitted into the shaft hole 60 is the lumen of the shaft hole 60 of the shaft-like assembly member 6 from the outer surface side of the louver material 5. The screw is inserted into the shaft hole 60 of the assembly member 6 in a fixed form by screwing a screw connection screw hole 62 provided so as to penetrate the screw and a screw connection screw 63 screwed into the screw. Is attached.

  In this example, the assembly member 6 is described as being continuous with the louver material 5, but is formed as a separate body from the louver material 5, and this is formed into the above-described connecting screw hole. You may comprise so that it may be integrally connected with the louver material 5 by the appropriate connection means using assembly | attachment metal fittings, such as 62 and the connection screw 63. FIG. However, even when molded separately from the louver material 5 in this way, the outer peripheral surface side may be formed in an appropriate shape, but the inner peripheral wall of the shaft hole 60 provided in the shaft core portion has a shaft core wire. An engaging groove 61 is provided for preventing rotation about the center.

  An intermediate member 7 in the form of a rectangular tube that is fitted and connected via an assembly fitting such as the screw hole 62 and the connection screw 63 by inserting the proximal end side into the shaft hole 60 provided in the shaft core portion of the assembly member 6. The base end side of the intermediate member 7 is fixedly connected to the assembly member 6 so that the distal end side of the intermediate member 7 protrudes from the edge of the louver member 5 and the end of the rising wall 4 provided on the vertical stand 3. The assembly shaft for assembling and supporting the louver material 5 on the vertical frame 3 is constructed by assembling and fixing to the assembly portion to be installed on the edge.

  The assembling means for assembling the rectangular tubular intermediate member 7 that supports the louver material 5 to the stand 3 also serves as a means for adjusting the mounting angle of the louver material 5.

  That is, a fitting groove 8 having a width in which a rectangular tube-shaped intermediate member 7 is fitted with a pair of outer peripheral wall surfaces at an edge of the rising wall 4 of the vertical wall 3, and one side of the groove is outward from the vertical wall 4. The intermediate member 7 is formed in a U-shape that is released toward the outside, and the intermediate member 7 is formed in a polygonal shape such as a hexagonal shape or an octagonal shape so that the intermediate member 7 is paired with the outer peripheral surface thereof. If the outer wall surface opposite to the inner surface of the groove side surface in the rising direction of the upright wall 4 symmetrical to the U-shaped fitting groove 8 is slidably fitted, the louver material 4 The mounting angle generated by rotating the integrally joined intermediate member 7 is maintained and fitted to the U-shaped fitting groove 8 to be supported. Then, if the fastening bolt 9 is screwed in from the end surface on the protruding end side of the shaft-shaped intermediate member 7 through the retaining ring 90, the washer 91 and the like and fastened to the rising wall 4, the louver material 5 becomes the intermediate member. 7 is fixedly mounted on the vertical frame 3 while maintaining the mounting angle when the 7 is fitted in the U-shaped fitting groove 8.

  At this time, assuming that the intermediate member 7 is formed in an octagonal polygonal rectangular tube shape, the intermediate member 7 is rotated by one frame on its outer peripheral wall, and is rotated about the axis of the intermediate member 7 to form a U-shape. If the fitting bolt 8 is fitted, and the fastening bolt 9 is screwed into the shaft hole 70 of the intermediate member 7 and fastened and fixed, the louver material 5 is inclined at an angle advanced by about 15 degrees. It is held and fixedly mounted, and the inclination angle of the louver material 5 is adjusted.

  In addition, the adjustment of the inclination angle of the louver material 5 performed by combining the rectangular tubular intermediate member 7 and the U-shaped fitting groove 8 is performed by adjusting the assembly member 6 as in the example shown in FIG. Formed so as to prevent rotation of the intermediate member 7 to be inserted into the inner peripheral wall of the shaft hole 60 of the assembly member 6 formed so that the proximal end side of the intermediate member 7 is inserted and fixed to the shaft core portion. The middle of inserting the fitting groove 8 along the axial direction of the shaft hole 60 of the assembly member 6 into the intermediate portion of each wall surface in the width direction of the inner wall surface of the polygon. By forming an engaging groove 61 that fits with the ridge line portion of the peripheral surface of the member 7, and selecting and changing the fitting between the engaging groove 61 and the ridge line of the intermediate member 7, a further finer inclination angle Adjustments will be made.

  In other words, the selection setting of the mounting angle of the louver material 5 can be finely performed at an inclination angle corresponding to the pitch of the engaging grooves 61.

  By the way, the U-shaped fitting groove 8 that can be formed in the edge portion of the rising wall 4 of the vertical wall 3 is formed on the louver material 5 that is fitted into the fitting groove 8 on the pair of groove walls. A louver that is integrally connected to the intermediate member 7 by preventing the rotation of the intermediate member 7 around the axial center line by the sliding contact of the outer peripheral wall surface of the connected rectangular tubular intermediate member 7. The mounting angle of the material 5 is set as desired, and the intermediate member 7 is fastened to the rising wall 4 of the vertical wall 3 by fastening bolts 9 and fixedly mounted, thereby holding the louver material 5 at a desired inclination angle. For assembling and mounting.

  Therefore, the fitting groove 8 is a groove corresponding to the outer diameter of the intermediate member 7 formed by a pair of peripheral wall surfaces of the rectangular tubular intermediate member 7 as shown in FIGS. 9, 10, and 11. It has a width and is formed so as to be slidably engaged with a pair of peripheral wall surfaces of the intermediate member 7 so as to be slidably fitted.

  However, in this means, when the gap between the louver material 5 to be assembled and supported and the rising wall 4 of the vertical wall 3 becomes uneven at the symmetrical end of the louver material 5, an operation for correcting this is performed. There is a troublesome problem.

  For example, when the gap between the left and right side end portions of the louver material 5 and the rising wall 4 of the upright 3 is uneven and unsightly when the louver material 5 is mounted in parallel with the horizontal, the fastening bolt 9 The fastening must be released and tightened again.

  12 to 13 show an embodiment of the means of the present invention adapted to cope with this problem. This means is formed with a U-shaped fitting groove 8 at the edge of the upright wall 4 of the upright 3 in which the intermediate member 7 is slidably fitted in a state where the outer peripheral wall surface is in sliding contact. Although the installation is the same as that of the above-described embodiment, the rising wall 4 has an outer position of the U-shaped fitting groove 8 at a position larger than the groove width of the fitting groove 8. A second fitting groove U having a narrow groove width is formed, and the outer peripheral portion on the inner surface side of the second fitting groove U is fitted into the U-shaped fitting groove U. Engaging with the outer end surface of the intermediate member 7, the engaging step portion V is formed so as to prevent the intermediate member 7 from moving outward.

  Therefore, in this embodiment, when the proximal end side of the intermediate member 7 is inserted into the shaft hole 60 of the assembly member 6 attached to the louver member 5 and fixedly connected by the connecting screw 63 or the like, If the length from the end on one end side of the member 7 to the end on the other end side corresponds to the length between the pair of upright walls 4 opposed to each other, the louver material 5 An intermediate member is provided between the pair of upright walls 4 and the upright walls 4 so that the U-shaped fitting groove 8 and the fitting groove 8 provided on each of the upright walls 4 are assembled. 7, the louver material 5 is placed on the side end face and the upright wall 4 of the vertical stand 3 so that the outer end portions of the intermediate members 7 abut against the engagement step portions V, respectively. Therefore, the work for making this gap uniform is facilitated.

A louver device U fitting groove V engagement step part a louver material b insertion port b 'mounting screw c square tube-shaped intermediate member c' engagement groove d shaft rod-shaped intermediate member d 'engagement groove e mounting bracket f Standing g Mounting bracket h Base plate 1 Louver device 2 Assembly machine frame 3 Standing 4 Standing wall 5 Louver material 6 Assembly member 60 Shaft hole 61 Engaging groove 62 Screw hole 63 Connecting screw 7 Intermediate member 70 Shaft hole 8 Mating groove 9 Tightening bolt 90 Stop ring 91 Washer

Claims (3)

  An intermediate member provided to be connected to the center portion in the width direction of the side end surface on one end side in the longitudinal direction of the louver material, and at least the outer peripheral surface of the portion protruding from the side end surface of the louver material is hexagonal, octagonal, etc. A polygonal columnar shape having a plurality of column wall surfaces symmetrical to each other, and formed into a polygonal high nut shape equipped with a screw hole into which a fastening bolt is screwed from an end surface on the protruding end side of the intermediate member into the axial core part. In addition, the column wall on the outer peripheral surface of the portion protruding from the side end surface of the louver material of the intermediate member assembled to the louver material is slidably fitted to the standing upright wall where the louver material is assembled and supported. A U-shaped fitting groove is formed, and the louver material is rotated around the axis of the intermediate shaft connected to the louver material to obtain a desired inclination angle. , The rise of the vertical The louver is characterized in that it is fitted to a U-shaped fitting groove formed to be held at the above-mentioned inclination angle, and the intermediate member is fixedly attached to the vertical wall by fastening with a fastening bolt. A fixing method for assembling the louver material in the apparatus.   A U-shaped fitting groove for slidably fitting the protruding portion of the intermediate member protruding from the side end surface of the louver material is formed on the vertical wall of the louver, and the U-shaped fitting groove A second fitting groove having a narrow width into which a fastening bolt screwed from the end surface on the front end side of the intermediate member is fitted, and in the periphery of the second fitting groove, An engagement wall that abuts the end surface on the front end side of the intermediate member is formed in a step shape, and the end surface on the front end side of the intermediate member that is fitted into the U-shaped fitting wall is abutted against the engagement wall so that the louver A fixing method for assembling a louver material in a louver device, wherein the fastening of a fastening bolt can be performed in a state where the positions of the material and the intermediate member are temporarily fixed.   An assembly support on the front end side of the intermediate member with respect to the center portion of the side end portion of the louver material is integrally assembled to the side end portion on one side of the louver material, and is performed via a shaft tube-shaped shaft tube member, and The inner cylindrical wall surface of the shaft member is fitted with the column wall surface formed on the outer peripheral surface of the intermediate member, and the intermediate member is freely slid in the axial direction in a state in which rotation about the central axis is prevented. An engaging ridge to be formed is formed, and the distal end side of this shaft tube member is fitted into a shaft hole provided in the shaft core portion of the shaft tube member, and the intermediate is obtained by screwing a set screw provided in the louver material. The louver material, which is integrally assembled to the intermediate member, is fixedly attached to the vertical frame and fixed to the frame by preventing the sliding of the member with respect to the shaft tube member, which is its mounting bracket, and integrally coupling. And the louver material and middle at that time With an attachment angle of inclination selected set by rotation about the axis core for better fresh wood, fixing method of assembling the louvers material in louver and wherein the that allows the 支架 assembly of the louver member.

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