JP4481115B2 - Filter frame - Google Patents

Description

The present invention relates to a filter for frame mounting the filter member on the ceiling and walls of the clean room to be used for example in semiconductor manufacturing.

  For example, in a clean room for manufacturing semiconductors, a filter member for removing dust and dust is mounted on a ceiling, a wall surface, and the like. The periphery of the filter member is held by a filter frame (see FIG. 4), and the filter frame is attached to the ceiling or wall surface of the clean room together with the filter frame.

Although various types of filter frames are known, a structure in which two pairs of frame members corresponding to the vertical side and the horizontal side of the filter member are connected to each other with screws is generally used (for example, Patent Documents). 1 and Patent Document 2).
JP 2004-132620 A JP 2002-200408 A

  However, since the filter members have various sizes, that is, lengths of the vertical side and the horizontal side, there are many kinds of vertical frame members and horizontal frame members constituting the filter frame. Must be prepared. Further, in the filter frame configured to connect the vertical side frame member and the horizontal side frame member using a connection bracket or the like, the number of parts is further increased, and the work man-hour is also increased.

  The present invention has been made in view of such a situation, and it is not necessary to prepare various frame materials for each filter member, a member for connection is unnecessary, and a filter frame that is easy to assemble. The purpose is to provide.

To achieve the above object, the present invention provides the following filter frame.
(1) A pair of frame members corresponding to one side of the filter member to be held and a pair of frame members corresponding to the other side are arranged to face each other, and the frame members are connected with screws. A filter frame ,
A bottom part, a pair of left and right side parts erected in the same direction from both ends of the bottom part, and a surface on the side part side of the bottom part are provided over the entire length of the bottom part, and a screw groove is formed on the inner wall. It has been a frame for frame members that Yusuke integrally with the rail portion, so that the first frame member made by cutting in correspondence to the length of one side of the filter member pair, rail portions face each other Placed opposite to
The frame material is cut in accordance with the length of the other side of the filter member, and both side portions and rail portions are cut at a length corresponding to the height of the side surface at both ends, A pair of second frame members having a notch portion in which screw holes are formed corresponding to the rail portions on the bottom surface portion, and arranged to face each other orthogonal to the first frame material so that the rail portions face each other,
The end portion of the first frame member is engaged with the notch portion of the second frame member, and the screw hole of the second frame member and the rail portion of the first frame member are connected by screws. Filter frame .
(2) The filter frame according to (1) above, wherein the rail portion has a slit formed over its entire length.

  According to the present invention, the same frame frame material may be cut according to the lengths of the target filter member along the vertical and horizontal sides, using one as it is, and forming the notch in the other, Since the members are made common, it is not necessary to prepare the frame material for the vertical side and the frame material for the horizontal side for each filter member as in the prior art. Further, when assembling, another connecting member such as a bracket is unnecessary, and the assembling work is also simplified. These effects can reduce the cost.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

(Frame material for frames)
FIG. 1A is a side view showing a frame material constituting a filter frame according to the present invention, and FIG. 1B is a front (end face) view thereof. The frame material 11A is formed as a long rod-shaped member, for example, from aluminum or the like, and is a pair of left and right side surfaces at a predetermined height (H) substantially perpendicular to each other in the same direction from both sides of the bottom surface portion 21. A base portion 30 having a substantially U-shaped cross section is formed by standing the portion 22, and a substantially pipe-shaped rail portion 23 is attached to the entire surface of the bottom surface portion 21 on which the side surface portion 22 is formed. ing.

  The rail portion 23 has a thread groove 14 formed on the inner wall thereof. Moreover, the slit 15 continued along the length direction may be formed in a part of the peripheral surface. In addition, although the two rail parts 23 are formed in the example of a figure, depending on structures, such as the width | variety of the base 30, it may be 1 or 3 or more.

  The above-mentioned frame material 11A is formed by integrally forming pipe-like objects corresponding to the base 30 and the rail part 23 by extrusion molding, cutting them to a predetermined length, and then forming screw grooves 15 on the inner wall of the pipe-like object. The rail portion 23 may be formed by forming the slit 15 if necessary, and can be easily manufactured by those skilled in the art.

(Filter frame)
The filter frame of the present invention holds a filter member having a square planar shape, a pair of vertical side frame members corresponding to the vertical sides of the filter member to be held, and a pair of horizontal sides corresponding to the horizontal sides. The lateral frame members are arranged opposite to each other, and these frame members are connected to each other with screws (see FIG. 4). Then, the frame frame member 11A shown in FIG. 1 is cut according to the length of one side (here, the vertical side) of the filter member, and used as it is as the vertical side frame member.

  On the other hand, the lateral side frame member that holds the other side (here, the lateral side) of the filter member has a structure shown in FIG. 2A is a side view, FIG. 2B is a front (end face) view, and FIG. 2C is a top view showing the inside of the base. As shown in the figure, the frame material 11B for the lateral side cuts the frame frame material shown in FIG. 1 according to the length of the lateral side of the filter member to be held, and further, part of both ends thereof. The cutout 31 is formed by excision.

  Although the cut portion is indicated by a one-dot chain line in the drawing, both ends 22a and 22a of the side surface portions 22 and 22 and both ends 23a and 23a of the rail portions 23 and 23 are cut by the height (H) of the vertical side frame member 11A. A notch 31 is formed. Moreover, in this notch part 31, the bottom face part 21 remains as it is, and screw holes 16 and 16 are formed in the remaining flat plate part 21a corresponding to the rail parts 23 and 23 of the vertical frame 11A.

  In order to obtain a filter frame using the vertical side frame member 11A and the horizontal side frame member 11B, as shown in FIG. 3 partially enlarged, the vertical side frame member 11A and the horizontal side frame member are used. The frame member 11B is arranged orthogonally, and the cutout portion 31 of the lateral side frame member 11B is engaged with the end of the longitudinal side frame member 11A. Thereby, in the notch 31, the end surface 24a of the longitudinal side frame member 11A and the flat plate portion 21a of the lateral side frame member 11B come into contact with each other, and the lower surface 24b of the side surface part 22 of the longitudinal side frame member 11A and the lateral side The cut end surface 25 of the side surface portion 22 of the frame member 11B comes into contact with the flat plate portion 21a of the longitudinal side frame member 11A so as to cover the entire end surface 24a of the longitudinal side frame member 11A. At the same time, the rail portion 23 of the vertical frame member 11A and the screw hole 16 of the horizontal frame member 11B are aligned. Then, the screw 13 is screwed into the screw groove 14 of the rail portion 23 of the longitudinal side frame member 11A through the screw hole 16 of the lateral side frame member 11B, and tightened, whereby the longitudinal side frame member 11A and the lateral side frame are secured. The material 11B is connected.

  In addition, although the screw hole 16 of the frame material 11B for horizontal sides may be formed at a position that does not match the rail portion 23 of the frame material 11A for vertical sides in the above-described assembled state, If the slits 15 are formed in the part 23, this positional deviation can be allowed and screwed.

  FIG. 4 is an external view showing a state in which the filter frame 11 of the present invention is mounted on the filter member 10, and the connection shown in FIG. 3 is similarly performed at four locations indicated by A to D in the drawing. In addition, the filter member 10 is hold | maintained in each side part of the frame material 11A for vertical sides, and the frame material 11B for horizontal sides.

It is a figure which shows the frame material for the vertical sides of the filter frame of this invention, (A) is the side view, (B) is the front view. It is a figure which shows the frame material for horizontal sides of the frame for filters of this invention, (A) is the side view, (B) is the front view, (C) is the top view. It is a principal part disassembled perspective view explaining the assembly procedure of the filter frame of the present invention. It is a schematic external view which shows the assembly state of the filter frame of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Filter member 11 Filter frame 11A Vertical frame material 11B Horizontal frame material 13 Screw 14 Screw groove 16 Screw hole 21 Bottom surface part 21a Flat plate part 22 Side surface part 22a Cut part 23 Rail part 23a Cut part 31 Notch part

Claims (2)

A filter configured by disposing a pair of frame members corresponding to one side of the filter member to be held and a pair of frame members corresponding to the other side, and connecting the frame members with screws. Frame for
A bottom part, a pair of left and right side parts erected in the same direction from both ends of the bottom part, and a surface on the side part side of the bottom part are provided over the entire length of the bottom part, and a screw groove is formed on the inner wall. It has been a frame for frame members that Yusuke integrally with the rail portion, so that the first frame member made by cutting in correspondence to the length of one side of the filter member pair, rail portions face each other Placed opposite to
The frame material is cut in accordance with the length of the other side of the filter member, and both side portions and rail portions are cut at a length corresponding to the height of the side surface at both ends, A pair of second frame members having a notch portion in which screw holes are formed corresponding to the rail portions on the bottom surface portion, and arranged to face each other orthogonal to the first frame material so that the rail portions face each other,
The end portion of the first frame member is engaged with the notch portion of the second frame member, and the screw hole of the second frame member and the rail portion of the first frame member are connected by screws. Filter frame . The filter frame according to claim 1, wherein the rail portion has a slit formed over the entire length thereof.

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