JP4010743B2 - Connection structure of perforated sound absorbing louver for makeup - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to a technical field in which makeup perforated sound-absorbing louvers (hereinafter sometimes simply referred to as sound-absorbing louvers) installed on the underside of a girder such as an elevated road are connected to each other.
[0002]
[Prior art]
Conventionally, as a structure for connecting butting and connecting sound absorbing louvers for makeup, for example, (1) a louver connecting method and a connecting structure described in Japanese Patent Application Laid-Open No. 10-159031 of the present applicant are known. In this case, a similar-shaped sleeve having a slightly smaller cross section is fitted in advance into the end opening of one louver. An operation bolt that is screwed into the upper surface flange of the sleeve is set in a long hole formed in the longitudinal direction of the upper surface flange of the louver. To connect the louvers, the connecting end faces of each louver are abutted, then the sleeve is protruded by the operation bolt to enter the end opening of the other louver, and the fastening bolts are screwed and tightened into both bolt holes thus aligned. It is contents to do.
[0003]
Further, (2) the connecting device for cosmetic louvers described in Utility Model Registration No. 3025425 (issue date: June 21, 1996) is about to the end openings of the two louvers that are butt-connected to each other. Protruding locking means for restricting the movement of the relay members (so-called sleeves), which are inserted by half the length, hits the end of each louver at an intermediate portion in the length direction.
[0004]
[Problems to be solved by the present invention]
The connection structure (1) has a problem that an operation bolt rises at the end of the louver, which interferes with the alignment of the louver during transportation or inventory. In addition, the connection structure (2) has a sense of anxiety that the relay member is not fixed to any louver.
[0005]
The object of the present invention is that there is no obstacle to the arrangement of the sound absorbing louver during transportation and inventory, and the joint sleeve is always fixed to one sound absorbing louver and has a structural stability, and the connection work is easy. An object of the present invention is to provide a connecting structure for a sound absorbing louver for makeup that can be reliably performed and effective in maintaining quality.
[0006]
[Means for Solving the Problems]
As means for solving the above problems, a connecting structure for a perforated sound absorbing louver for makeup according to the invention described in claim 1 is:
In the structure where the perforated sound-absorbing louvers for makeup installed on the underside of the underside of an elevated road, etc. are connected to each other,
A shape that can be inserted into the inner side surface of the cross-sectional shape of the perforated sound absorbing louver for makeup, has a length necessary for abutting connection between the sound absorbing louvers, and has an opening through which a plurality of sound absorbing holes of the sound absorbing louver can be seen. A joint sleeve provided with a long hole for fastening on the side wall or the bottom wall is used,
One end side of the joint sleeve is fitted into the end opening of one sound absorbing louver, and the sound absorbing hole formed in the side wall or the bottom wall of the sound absorbing louver is aligned with the fastening hole of the joint sleeve so as to be riveted, etc. Has been done,
The other end side of the joint sleeve is fitted into the end opening of the other sound absorbing louver to make a butt connection.
[0007]
The invention according to claim 2 is the connection structure for the perforated sound absorbing louver for makeup according to claim 1,
The outer shape of the joint sleeve is substantially the same as the shape of the inner surface of the cross-sectional shape of the perforated sound absorbing louver for makeup, and has a length necessary for the butt connection between the sound absorbing louvers, and at least on the side wall or the bottom wall. The sound absorbing louver is provided with an opening through which a plurality of sound absorbing holes can be seen, and a long hole for fastening is provided on the side wall or the bottom wall.
[0008]
The invention according to claim 3 is the connection structure of the perforated sound absorbing louver for makeup according to claim 1,
The opening of the joint sleeve is provided in both the side wall and the bottom wall.
[0009]
The invention according to claim 4 is the connection structure for the perforated sound absorbing louver for makeup according to claim 1,
Two openings of the joint sleeve are roughly provided in the longitudinal direction of the side wall and the bottom wall.
[0010]
The invention according to claim 5 is the connection structure for the perforated sound absorbing louver for makeup according to claim 1,
The clearance adjustment position confirmation part is provided in the center part of the length direction of the upper surface flange of the joint sleeve, and the sound absorption louver is inserted to the part specified by the clearance adjustment position confirmation part to make a butt connection. Features.
[0011]
The invention according to claim 6 is the connection structure for the perforated sound absorbing louver for makeup according to claim 5,
The gap adjustment position confirmation unit is provided as a notch having a constant width.
[0012]
A seventh aspect of the present invention is the connecting structure for a perforated sound absorbing louver for makeup according to any one of the first to fifth aspects,
The joint sleeve is provided with an insertion guiding portion for the sound absorbing louver at the end of the joint sleeve.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The embodiment of the present invention shown in FIGS. 1 to 3 will be described.
As illustrated in FIG. 3, the present invention is preferably implemented as a structure in which the perforated sound absorbing louvers 2 and 2 ′ provided on the underside of the underside of an elevated road or the like are connected to each other in series.
[0014]
1 and 2 show an embodiment of the joint sleeve 1. The outer shape of the joint sleeve 1 is substantially the same as the inner side surface shape of the cross-sectional shape of the perforated sound absorbing louvers 2 and 2 ′ illustrated in FIG. 3 and the end opening of the sound absorbing louver 2 or 2 ′ is opened. It is configured to be able to be closely fitted to. The joint sleeve 1 also has a length necessary for the butt connection between the sound absorbing louvers 2 and 2 ', for example, about 150 mm. Both the bottom wall 8 and both side walls 7 and 7 are provided with sound absorbing openings 12 as large as possible so that a plurality of sound absorbing holes 2a provided in the side walls and bottom walls of the sound absorbing louvers 2 and 2 'can be seen. (Inventions according to claims 2 and 3).
[0015]
However, the cross-sectional shape of the joint sleeve 1 may be a so-called loose shape as long as it is a shape that can be inserted into the inner side surface of the cross-sectional shape of the perforated sound absorbing louvers 2, 2 ′ ( (Invention of Claim 1) This is because the joint sleeve 1 is fixed to one of the perforated sound absorbing louvers for makeup as described later.
[0016]
In the case of the illustrated example, two openings 12 are provided in the longitudinal direction in a rectangular shape and roughly divided into both the side wall 7 and the bottom wall 8 of the joint sleeve 1 (the invention according to claim 4). However, the opening 12 is not limited to a rectangular shape, and is not limited to the arrangement of two openings. As long as the sound absorbing effect of the perforated sound absorbing louvers 2, 2 ′ is not obstructed, the opening 12 may be circular, triangular, or polygonal, and the size and number thereof are arbitrary. The opening 12 can be provided only in the bottom wall 8 of the joint sleeve 1 or only in the side wall 7 (invention according to claim 1).
[0017]
A long hole 17 for fastening is provided long in the vertical direction near the one end of the side wall 7 of the joint sleeve 1. However, the long holes 17 may be provided horizontally in the longitudinal direction or in an oblique direction, or may be provided by being provided in the longitudinal direction or the longitudinal direction of the bottom wall 8 at a right angle or in an oblique direction. It can also be carried out by providing long holes 17 in both the side wall 7 and the bottom wall 8. It can also be carried out by providing long holes 17 at both ends of the joint sleeve 1. The long hole 17 may be an elliptical hole, a peanut-shaped hole, or the like as long as riveting, which will be described later, is possible.
[0018]
A short tongue-shaped fitting guide piece 9 having a slightly curved shape is projected as one of the fitting guide portions of the sound absorbing louver on the end of the bottom wall opposite to the end provided with the long hole 17. Has been. Further, at the end of the upper surface flange on the same side, there is also formed a guide 11 inclined in a flared shape for facilitating the entry of the perforated sound absorbing louvers 2, 2 'into the upper surface flange (referred to above) Item 7). Of course, the sound guide louver fitting guide portions may be provided at both ends of the joint sleeve 1.
[0019]
In addition, the central portion in the length direction of one (or both) upper surface flange 6 has a width of about 10 mm as an example of a clearance adjustment position confirmation portion in the butt connection of the sound absorbing louver (this width dimension is the sound absorbing louver 2, A rectangular notch 13 having the size of the gap required for securing the 2 ′ butt connection, that is, the size of the gap for absorbing thermal expansion and manufacturing error, is formed (above). , Claims 5 and 6). However, the gap adjustment position confirmation unit may be another uneven shape or pattern in place of the cutout as long as the position confirmation or the dimensional guideline is obtained.
The present invention is characterized in that the joint sleeve 1 having the above-described configuration is used for connection.
[0020]
As a connection procedure, first, as shown in FIG. 3, one end of the joint sleeve 1, in particular, the end on the side where the long hole 17 for fastening is provided is provided in the end opening of one sound absorbing louver 2. The portion is inserted and inserted to about half the length defined by the position of the edge of the notch 13. Then, one of the sound absorbing holes 2a formed in the side wall of the sound absorbing louver 2 and the fastening long hole 17 of the joint sleeve 1 are made to coincide with each other, and are referred to as, for example, pop rivets or blind rivets etc. Riveting is performed by the unidirectional driving type rivet 10, and the perforated sound absorbing louver 2 and the joint sleeve 1 are integrally connected (fixed). This integration process is performed as factory processing or as work at a site in the field. In any case, in the case of the present invention, it is possible to stop the rivet or the like freely in position by simply adjusting one of the sound absorbing holes 2a of the sound absorbing louver 2 and the fastening long hole 17 of the joint sleeve 1. Connection can be made by wearing, and easy and reliable connection can be obtained.
[0021]
Next, the other end side of the joint sleeve 1, that is, the end portion on which the fitting guide piece 9 is projected, is connected to the end opening of the other sound absorbing louver 2 'to be connected in series. Is smoothly fitted using the fitting guide piece 9 and the upper guide 11. Then, the butt connection is completed by inserting it into a specified length up to the edge of the notch 13.
[0022]
According to the present invention, as described above, by using the position and width dimension of the notch 13 as the gap adjustment position confirmation part as a guide, it is easy to ensure the “gap” essential for the connection of the sound absorbing louver accurately and reliably. Therefore, it is possible to provide a sound absorbing louver connection structure with excellent quality assurance.
[0023]
【The invention's effect】
According to the connection structure of the first to seventh aspects of the present invention, there are no obstacles to the sound absorption louver transportation and alignment at the time of inventory, which is convenient. In addition, since the joint sleeve is always fixed to one of the sound absorbing louvers, there is a sense of structural stability and there is no fear of an accident. Moreover, anyone can easily and accurately perform the connection work, and can realize a connection structure for a sound-absorbing louver for makeup with excellent quality assurance.
[Brief description of the drawings]
FIG. 1 is a perspective view of a joint sleeve used in the present invention.
FIG. 2 is a side view of the joint sleeve.
FIG. 3 is a perspective view showing an embodiment of a connection structure according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Joint sleeve 2, 2 'Perforated sound absorbing louver for makeup 12 Sound absorbing opening 17 Fastening long hole 9 Insertion guide piece 13 Notch 10 Rivet 8 Bottom wall 7 Side wall

Claims (7)

In the structure where the perforated sound-absorbing louvers for makeup installed on the underside of the underside of an elevated road, etc.
A shape that can be inserted into the inner side surface of the cross-sectional shape of the perforated sound absorbing louver for makeup, has a length necessary for abutting connection between the sound absorbing louvers, and has an opening through which a plurality of sound absorbing holes of the sound absorbing louver can be seen. A joint sleeve provided with a long hole for fastening on the side wall or the bottom wall is used,
One end side of the joint sleeve is fitted into the end opening of one sound absorbing louver, and the sound absorbing hole formed in the side wall or the bottom wall of the sound absorbing louver is aligned with the fastening hole of the joint sleeve so as to be riveted, etc. Has been done,
A connecting structure for a perforated sound absorbing louver for makeup, wherein the other end of the joint sleeve is fitted into an end opening of the other sound absorbing louver to make a butt connection. The outer shape of the joint sleeve is substantially the same as the shape of the inner surface in the cross-sectional shape of the perforated sound absorbing louver for makeup, and has a length necessary for the butt connection between the sound absorbing louvers, and at least on the side wall or the bottom wall. The perforation for makeup according to claim 1, wherein an opening through which a plurality of sound absorbing holes of the sound absorbing louver are seen is provided, and a long hole for fastening is provided on the side wall or the bottom wall. Sound absorption louver connection structure. 2. The connection structure for a perforated sound absorbing louver for makeup according to claim 1, wherein the opening of the joint sleeve is provided on both the side wall and the bottom wall. 2. The connection structure for a perforated sound absorbing louver for makeup according to claim 1, wherein two openings of the joint sleeve are roughly provided in the longitudinal direction of the side wall and the bottom wall. The clearance adjustment position confirmation part is provided in the center part of the length direction of the upper surface flange of the joint sleeve, and the sound absorption louver is inserted to the part specified by the clearance adjustment position confirmation part and the butt connection is performed. The connecting structure for a perforated sound absorbing louver for makeup according to claim 1, 6. The connection structure for a perforated sound absorbing louver for makeup according to claim 5, wherein the gap adjustment position confirmation part is provided as a notch having a constant width. The connection structure for a perforated sound absorbing louver for makeup according to any one of claims 1 to 5, wherein an insertion guiding portion for the sound absorbing louver is provided at an end of the joint sleeve.

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