JP2010276328A - Louver for ventilation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a louver for ventilation smoothly attachable even to a surface with a protrusion at its periphery. <P>SOLUTION: The louver for ventilation includes a cover body 1 with a louver 1a, a fixing member 2 for fixing the cover body 1 to a cabinet opening 18, a base body 3 arranged in a cabinet 17 for holding and assembling a cabinet wall surface 17a together with the fixing member 2, and a spacer member 4 for making the base body 3 engaged with the cabinet wall surface 17a at a prescribed interval. The base body 3 includes a cylindrical male screw 3a with a screw groove at its periphery, and a frame piece 3b for attaching the spacer member 4 to its rear end. The fixing member 2 includes a ring piece 2a engaged with the cover body 1, and a cylindrical part 2b with a female screw. In the male screw 3a surrounded by the spacer member, the cylindrical part 2b is screwed via the opening 18 to hold the cabinet wall surface 17a, and cover body 1 is attached to the fixing member 2, thereby attaching the louver for ventilation to the cabinet. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a ventilation louver attached to a cabinet that houses various devices.

A cabinet that stores equipment that generates heat, such as electronic equipment, is provided with a ventilation opening, and a louver is attached to the ventilation opening to prevent intrusion of rainwater, dust, or the like. Such ventilation louvers usually have a built-in filter so that dust and insects do not enter from the outside. For example, the ventilation louver described in Patent Document 1 has a configuration in which a cylindrical louver main body (attachment frame) is attached to a cabinet and a cover is attached to the attachment frame.
Moreover, in patent document 2, it is the structure which provides a screw groove in the inner side of a mounting ring (mounting frame), and the circumference | surroundings of a cover, it is screwed together and it sandwiches and attaches a cabinet wall surface.

JP 2007-170746 A JP 2008-196714 A

However, the conventional ventilation louver is based on the premise that it is attached to a portion where the surface of the cabinet to be attached is flat and has no protrusions around it. For this reason, it was able to be mounted well on a flat surface, but it was difficult to mount it on a part with a protruding part in the vicinity, and another dedicated louver was attached or the mounting part was changed. I had to.
Therefore, in view of such problems, the present invention has an object to provide a ventilation louver that can be mounted not only on a flat surface but also on a surface having a protrusion near the louver mounting portion. Yes.

In order to solve the above problems, the invention of claim 1 is directed to a cover body having a plurality of louvers, a fixing member for fixing the cover body to a ventilation opening formed in a cabinet wall surface, and a cabinet interior. And a base body connected to the fixing member via the opening, and the base body has a cylindrical male screw portion having a screw groove around and a rear end portion of the male screw portion. The fixing member includes a connecting portion that connects the cover body and a cylindrical female screw portion that is screwed into the male screw portion. The fixing member and the base body are attached to the opening by screwing the male screw part and the female screw part through the opening, and the cover body is attached to the cabinet. To do.
According to this configuration, the ventilation wall louver can be attached to the opening of the cabinet by clamping the male wall portion and the female screw portion to sandwich the cabinet wall surface. And when screwing together, the peripheral edge of the opening is sandwiched between the rear end of the female thread and the locking surface, and if there is a slightly flat space around the opening, it can be attached to the cabinet wall without gaps. Can do. Therefore, even if it is a cabinet wall surface with a projection part near the opening, the ventilation louver can be attached without difficulty.

According to a second aspect of the present invention, in the configuration according to the first aspect, a spacer member is provided on the base body to engage the engagement wall with a cabinet wall surface at a predetermined interval. Includes a connecting portion for assembling to the base body, and a cylindrical portion having a diameter for covering the female screw portion having a length for providing the predetermined interval and screwed to the male screw portion. The wall surface of the cabinet is sandwiched between the end portion of the spacer member and the engagement frame of the fixing member by screwing the male screw portion arranged inside and the female screw portion arranged outside the cabinet.
According to this configuration, it is possible to screw the male screw portion without protruding the male screw portion from the cabinet, and it is possible to attach the ventilation louver to the flat surface while minimizing the protruding amount. Therefore, it can be installed as long as there is a small space in front of the wall surface of the cabinet to be attached, and it is also aesthetically preferable.

According to a third aspect of the present invention, in the configuration of the first or second aspect, a louver is formed inside the male screw portion.
According to this configuration, since the louvers are provided double, it is possible to reliably prevent the intrusion of rainwater.

  According to the present invention, if there is a slightly flat space around the ventilation opening of the cabinet, the louver can be attached. Therefore, it is possible to attach without difficulty even in a portion where there is a protrusion in the vicinity of the opening. it can. And it can attach to a flat surface with the protrusion amount from a wall surface being minimized.

It is a disassembled perspective view which shows an example of embodiment of the louver for ventilation which concerns on this invention. It is a perspective view which shows the state which assembled the ventilation louver of FIG. It is a perspective view which shows a mode that the louver for ventilation of FIG. 1 is attached to a cabinet. It is a perspective view which shows the state which attached the louver for ventilation of FIG. 1 to the cabinet. It is a disassembled perspective view which shows the other usage example of the louver for ventilation of FIG. It is a perspective view which shows a mode that the louver for ventilation of FIG. 5 is attached to a cabinet. It is a perspective view which shows the state which attached the louver for ventilation of FIG.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of the invention will be described in detail with reference to the drawings. 1 and 2 show an example of a ventilation louver according to the present invention, FIG. 1 is an exploded perspective view, and FIG. 2 shows an assembled state. DESCRIPTION OF SYMBOLS 1 is a cover body, 2 is a fixing member for fixing the cover body 1 through a filter etc., 3 is a base body arrange | positioned in a cabinet, 4 is a spacer member used as needed, 5 is dust etc. , 6 is an insect screen, and 7 and 8 are packings.

  The cover body 1 is formed with a plurality of louvers 1a, 1a,... On the front surface, and a gap for ventilation is formed. A skirt-like frame piece 1b is formed around the periphery, and the whole is formed in a disk shape. In addition, a space for housing the filter 5 is formed in the back portion, and an insertion hole 1c through which a screw 10 for screwing to the fixing member 2 is inserted is formed in the center.

The fixing member 2 has a substantially cylindrical shape as a whole, and includes a ring piece 2a that engages with the frame piece 1b of the cover body 1 to close the back portion of the cover body 1, and a cylindrical portion 2b is formed on the rear side. ing. A space for accommodating the filter 5 is provided inside the ring piece 2a, and a connecting piece 12 having a screw hole 12a formed along the central axis of the fixing member 2 is provided at the center thereof. The connecting piece 12 is held by beam pieces 2c and 2c that are cross-shaped from the periphery. The beam piece 2c and the connecting piece 12 also serve as holding members for holding the accommodated filter 5 and insect net 6.
An operation piece 2d for facilitating screwing operation with the base body 3 is formed around the ring piece 2a.
On the other hand, the cylindrical portion 2b is internally provided with female thread pieces 11, 11,.

The base body 3 includes a cylindrical male screw portion 3a having a screw groove 13 formed on the entire side surface, and a quadrangular frame piece 3b formed at the rear portion of the male screw portion 3a. The male screw portion 3a has substantially the same length as the cylindrical portion 2b of the fixing member 2, is formed with a diameter slightly smaller than the cylindrical portion 2b, and can be screwed into the cylindrical portion 2b. A plurality of louvers 14 are formed inside.
On the other hand, the frame piece 3b is formed with a pair of engaging portions 15 for attaching the spacer member 4 on the upper side and the lower side, respectively, and the front surface of the frame piece 3b around the male screw portion 3a has the packing 8 and a spacer member. 4 is formed.

  The spacer member 4 is a cylindrical body having a length substantially equal to the length of the male screw portion 3a, and has a diameter for accommodating the cylindrical portion 2b. Tongue sides 4a, 4a,... Are formed at appropriate portions outside the tip portion to form a contact surface with the cabinet wall surface. Moreover, the nail | claw piece 16 latched to the latching | locking part 15 is provided in the site | part corresponding to the latching | locking part 15 of the frame piece 3b in the rear part.

  The ventilation louver thus configured is attached to the cabinet as follows. FIG. 3 is a perspective view showing a state of being attached to the cabinet 17 and will be described based on this figure. First, the packing 8 shown in FIG. 1 is attached to the base body 3, and the spacer member 4 is assembled from above. The spacer member 4 can be assembled by locking the claw pieces 16 provided at four places to the base body 3, and the airtightness of the joint portion between them is maintained by the action of the packing 8.

  The integrated base body 3 and spacer member 4 are applied to the opening 18 formed in the cabinet wall surface 17a from the inside of the cabinet 17 through the packing 7, and the tongue formed at the end of the spacer member 4 and its periphery. The side 4 a is brought into contact with the peripheral edge of the opening 18 through the packing 7. The opening 18 is formed with a diameter that allows the cylindrical portion 2b of the fixing member 2 to be inserted and does not allow the spacer member 4 to be inserted.

  Next, the fixing member 2 is disposed on the front side of the opening 18, and the cylindrical portion 2 b is engaged with the male screw portion 3 a via the opening 18 and screwed. At this time, the louver 14 formed on the base body 3 is confirmed so as to face up, down, left and right, and is arranged so as to face a predetermined lateral direction.

  Thus, by screwing the fixing member 2 to the base body 3, the cabinet wall portion 17 a around the opening 18 is sandwiched between the spacer member 4 and the back portion of the ring piece 2 a of the fixing member 2. Is attached to the opening 18. Further, the packing 7 disposed between the periphery of the opening 18 and the spacer member 4 can prevent a gap from being generated between the cabinet wall surface 17a and the spacer member 4, and rainwater or the like that has entered from the outside soaks into the cabinet 17. Can be prevented.

  When the fixing member 2 is attached to the opening 18, the insect net 6 and the filter 5 are arranged in the ring piece 2 a, and the cover body 1 is attached to the fixing member 2. The filter 5 and the insect net 6 have holes 5a and 6a through which the connecting piece 12 is inserted at the center, and are held by the inserted connecting piece 12. If the cover body 1 confirms the upper, lower, left, and right sides of the louver 1a and inserts the screws 10, the attachment is completed. FIG. 4 shows a state where the attachment is completed.

Thus, the ventilation louver can be attached to the cabinet 17 by sandwiching the cabinet wall surface 17 a by screwing the cylindrical portion 2 b of the fixing member 2 and the male screw portion 3 a of the base body 3. And by using the spacer member 4, since the cylindrical part 2b of the fixing member 2 is inserted into the cabinet and connected to the base body 3, the protruding amount of the fixing member from the cabinet wall surface 17a can be made small. Therefore, when there is no protrusion in the vicinity of the opening 18 and it is flat, the ventilation louver can be attached with the protrusion amount being minimized.
Further, since the louver is provided in a double manner with the louver 1a of the cover body 1 and the louver 14 of the base body 3, the intrusion of rainwater can be reliably prevented.

  FIG. 5 shows another example of attachment of the ventilation louver of the present invention. 1 is different from FIG. 1 in that the spacer member 4 and the packing 7 are not provided, and other components are the same. In this case, the ventilation louver is attached to the cabinet 17 as follows. FIG. 6 shows a state of attachment, which will be described based on this figure. The opening 20 is different in size from the opening 18 in FIG. 1 and is formed with a diameter that allows the male screw portion 3a of the base body 3 to be inserted but does not allow the cylindrical portion 2b of the fixing member 2 to be inserted.

  First, the base body 3 to which the packing 8 is attached is disposed on the back portion (inside the cabinet) of the opening portion 20, and the male screw portion 3 a is inserted through the opening portion 20 to protrude. By screwing the cylindrical portion 2b of the fixing member 2 to the exposed male screw portion 3a, the cabinet wall surface 17a is sandwiched, and the base body 3 and the fixing member 2 are attached to the opening portion 20. At this time, the peripheral portion of the opening 20 is sandwiched between the frame piece 3 b of the base body 3 and the end of the cylindrical portion 2 b of the fixing member 2.

  After that, as in the above embodiment, the fixing member 2 is engaged with the insect net 6 and the filter 5 to cover the cover body 1 and screwed to complete the attachment. As shown in FIG. 7, the ventilation louver is attached. It is done. However, in FIG. 7, the case where the step part 17b is formed in the opening part vicinity of the cabinet wall surface 17a which attaches the ventilation louver is shown.

Thus, the ventilation louver can be attached to the cabinet 17 by sandwiching the cabinet wall surface 17 a by screwing the cylindrical portion 2 b of the fixing member 2 and the male screw portion 3 a of the base body 3. And, when this screwing, because the cabinet wall surface 17a is sandwiched between the end of the cylindrical portion 2b of the fixing member 2 and the frame piece 3b, it can be attached if there is a slightly flat space around the opening portion 20, The ventilation louver can be attached without difficulty even on a wall surface having a protrusion or a step near the opening.
Therefore, the ventilation louver can be attached without difficulty to both the flat surface and a surface having a protrusion or the like in the vicinity without changing other members only by the presence or absence of the spacer member 4.

In the above embodiment, the louver 14 is also provided in the base body 3, but the louver 14 may be omitted. Further, a fan for forced exhaust may be attached to the base body 3.
Furthermore, although the internal thread piece 11 is formed piecewise in the cylindrical portion 2b of the fixing member 2, a complete internal thread body may be formed by continuously forming screw grooves on the inner surface of the cylindrical portion 2b.

  1. Cover body, 1a, louver, 2. Fixing member, 2b ... Tube part (female screw part) 3. Base body, 3a ... Male screw part, 3b ... Frame piece, 3c ... Engagement 4 .. Spacer member 10 .. Screw 11 .. Female thread piece 12.. Connecting piece (connecting portion) 14.. Louver 16.. Claw piece (connecting portion) 17 17 Cabinet 17a・ Walls, 18, 20 ・ ・ Openings.

Claims (3)

A cover body provided with a plurality of louvers, a fixing member for fixing the cover body to a ventilation opening formed on the wall surface of the cabinet, and disposed inside the cabinet and connected to the fixing member via the opening And a base body to be
The base body includes a cylindrical male screw portion having a thread groove around the base body, and an engagement surface provided at a rear end portion of the male screw portion and engageable with the peripheral edge portion of the opening.
The fixing member includes a connecting portion that connects the cover body, and a cylindrical female screw portion that is screwed into the male screw portion,
The ventilation louver, wherein the fixing member and the base body are attached to the opening by screwing the male screw and the female screw through the opening, and the cover is attached to the cabinet. . The base body is mounted with a spacer member for engaging the engagement surface with a cabinet wall surface with a predetermined interval,
The spacer member includes a connecting portion for assembling to the base body, and a cylindrical portion having a diameter for covering the female screw portion having a length for providing the predetermined interval and screwed to the male screw portion. Prepared,
The cabinet wall surface is sandwiched between the end portion of the spacer member and the engaging frame of the fixing member by screwing the male screw portion arranged in the cabinet and the female screw portion arranged outside the cabinet. The ventilation louver according to claim 1. The ventilation louver according to claim 1 or 2, wherein a louver is formed inside the male screw portion.

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