JP2006068641A - Frame for filter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a frame for a filter capable of easily responding changing of the number of laminated layers of the filter member and thickness of the individual filter member and realizing simplification of management and reduction of a cost. <P>SOLUTION: The frame for the filter comprises a first frame body formed by connecting the frame materials, each other, of approximately L shape cross section constituted by a front surface wall abutting on a flat surface part of the filter member and a side surface wall standingly provided from one end edge of the front surface wall at height corresponding to thickness of the stored filter member and having on engagement piece at a distal end; and a second frame body formed by connecting the frame materials, each other, of approximately L shape cross section constituted by a front surface wall abutting on a flat surface part of the filter member and a side surface wall standingly provided from one end edge of the front surface wall at height corresponding to thickness of the stored filter member and having the other engagement piece at the distal end. Any one of both frame bodies can be slid/received into the other bodies and both frame bodies are integrated by engaging the engagement pieces each other. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a filter frame and a filter device for attaching a filter member to a ceiling or a wall surface of a clean room used for manufacturing semiconductors, for example.

  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. 5), and the filter member is mounted on 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

  The filter member may be used in a state where the same type or different types of layers are stacked in multiple stages, and the number of layers is different. Conventionally, when the number of stacked filter members and further the thickness of each filter member is changed, the entire filter frame is changed accordingly. For this reason, it is necessary to prepare various kinds of filter frames or to prepare them in advance, which is problematic in terms of management and cost.

  The present invention has been made in view of such a situation, and can easily cope with a change in the number of stacked filter members and further the thickness of each filter member, and can simplify management and reduce costs. It is an object to provide a simple filter frame.

In order to achieve the above object, the present invention provides the following filter frame.
(1) A filter frame that holds filter members in a multi-layered state,
A front wall that abuts against the flat portion of the filter member, and a height corresponding to the thickness of the filter member accommodated from one edge of the front wall, and one locking piece at the tip portion A first frame formed by connecting frame members having a substantially L-shaped cross section composed of side walls having
A front wall that abuts against the flat portion of the filter member, and a height corresponding to the thickness of the filter member accommodated from one edge of the front wall, and the other locking piece at the tip A second frame body formed by connecting frame members having a substantially L-shaped cross section composed of side walls having
One of the two frame bodies can be slidably received in the other, and the both frame bodies are integrated by engaging locking pieces.
(2) In the first frame body and the second frame body, one pair of frame members facing each other has a rail portion in which a screw groove is formed in the side wall, and the other pair of frame members The side wall is cut at a length corresponding to the height of the side wall of one of the frame members at both ends, and the front portion has a cutout portion formed with a screw hole corresponding to the rail portion. And the end of the one frame member is engaged with the notch of the other frame member, and the screw hole of the other frame member and the rail portion of the one frame member are connected by screws. The filter frame according to (1) above.
(3) The filter frame as described in (2) above, wherein a slit is formed in the rail portion over its entire length.

  The filter frame of the present invention is configured to accommodate and integrate the filter member in each of the first frame body and the second frame body. For example, when the thickness of one filter member is changed, Even when the filter members are laminated, the other frame can be used as it is, and the response is easier than in the case where the entire frame is changed as in the prior art. Therefore, it is possible to reduce the types of frames that are produced or prepared, which is advantageous in terms of management and cost.

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

  FIG. 1 is an exploded perspective view showing one frame (first frame) 13 constituting the filter frame of the present invention, and FIG. 2 is a perspective view showing its assembled state. As illustrated, the first frame 13 has a pair of vertical side frame members 15A having a length corresponding to the vertical side of the filter member to be accommodated, and has a length corresponding to the horizontal side of the filter member. A pair of horizontal side frame members 15B are arranged opposite to each other, and ends thereof are connected with screws 16 so as to be assembled into a substantially rectangular tube shape.

  The vertical side frame member 15 </ b> A is a long member having a substantially L-shaped cross section integrally including a front wall 17 and a side wall 18 standing upright from one end edge of the front wall 17. Further, a locking claw portion 19 is formed at the front end portion of the side wall 18 on the side from which the front wall 17 projects (hereinafter referred to as an inner surface) over its entire length. The locking claw portion 19 is formed as an inclined surface that gradually increases from the tip toward the front wall 17, and has a surface substantially perpendicular to the inner surface of the side wall 18 at a position advanced a predetermined length toward the front wall 17. An engaging surface 19a is formed. Furthermore, a substantially pipe-shaped rail portion 20 is attached to the inner surface side of the side wall 18 at a position spaced apart from the front wall 17 by a distance corresponding to the thickness of the filter member. The rail portion 20 has a thread groove 21 formed therein, and a slit 22 that is continuous along the length direction may be formed in a part of the peripheral surface.

  The horizontal side frame member 15B is a long member having a substantially L-shaped cross section similar to the vertical side frame member 15A, and its side wall 26 is formed at the same height as the side wall 18 of the vertical side frame member 15A. A locking claw portion 27 having the same shape as the longitudinal side frame member 15A is formed at the tip portion over the entire length. Further, both ends of the front wall 25 are cut out so as to coincide with the length of the front wall 17 of the longitudinal side frame member 15A to form notches 23 and 23. The end of the vertical frame member 15A is engaged with the notch 23, and the side wall 26 is screwed at a position corresponding to the screw groove 21 of the rail member 20 of the vertical frame member 15A when engaged. A hole 24 is formed. Note that the screw hole 24 of the lateral side frame member 15B may be formed at a position that does not coincide with the rail portion 20 of the longitudinal side frame member 15A. If it is formed, this positional deviation can be allowed and screwed.

  The vertical side frame member 15A is formed by integrally forming pipe-like objects corresponding to the front wall 17, the side wall 18, and the rail portion 20 by extrusion molding, and cutting the pipe-like article into a predetermined length. The rail portion 20 may be formed by forming the screw groove 21 on the inner wall and forming the slit 22 if necessary. Further, the lateral side frame member 15B may be formed by integrally forming the front wall 25 and the side wall 26 and cutting it to a predetermined length, and then forming the notch 23 and the screw hole 24.

  The first frame 13 is configured as described above, and the filter member is sandwiched and accommodated between the front wall 17 of the vertical side frame member 15A and the rail portion 20 (see FIGS. 6 and 7).

  Next, the second frame will be described. FIG. 3 is an exploded perspective view showing the second frame 14, and FIG. 4 is a perspective view showing the assembled state. As shown in the drawing, the second frame body 14 has a pair of longitudinal side frame members 35A slightly shorter than the length of the longitudinal side frame member 15A of the first frame body 13 so as to face each other. A pair of side frame members 35B, which are slightly shorter than the length of the side frame 15B, are arranged to face each other, and the ends are connected with screws 36 so as to be assembled into a substantially rectangular tube shape.

  The lateral side frame member 35B is a long member having a substantially L-shaped cross section integrally including a front wall 37 and a side wall 38 standing upright from one end edge of the front wall 37. A substantially pipe-shaped rail portion 40 is attached to the surface on which the front wall 37 protrudes (hereinafter referred to as an inner surface) at a position spaced from the tip of the side wall 38 by a distance corresponding to the thickness of the filter member. Has been. The rail portion 40 has a thread groove 41 formed therein, and may further be formed with a slit 42 continuous along the length direction in a part of the circumferential surface. Furthermore, a locking claw portion 39 that engages with the locking claw portion 27 of the lateral frame member 15B of the first frame body is formed at the tip of the side wall 38. The locking claw portion 39 is formed with a cut perpendicular to the thickness direction at a predetermined position from the tip of the side wall 38, and further, the inclined surface of the frame member 15B for the lateral side of the first frame starting from this cut. An inclined surface corresponding to is formed. Note that the end face of the cut becomes a locking surface 39a that engages with the locking surface 27a of the locking claw portion 27 of the lateral frame member 15B of the first frame.

  The vertical side frame member 35A is a long member having a substantially L-shaped cross section similar to the horizontal side frame member 35B, and its side wall 46 is formed at the same height as the side wall 38 of the horizontal side frame member 35B. A locking claw portion 47 that engages with the locking claw portion 19 of the frame member 15A for the vertical side of the first frame 13 is formed at the distal end portion. This locking claw portion 47 is formed with a cut perpendicular to the thickness direction at a predetermined position from the front end of the side wall 46, and further, the inclination of the frame member 15A for the vertical side of the first frame 13 is started from this cut. An inclined surface corresponding to the surface is formed. Note that the end face of the cut becomes a locking surface 47a that engages with the locking surface 19a of the locking claw portion 19 of the vertical frame member 15A of the first frame 13. Further, both ends of the front wall 45 are cut out so as to coincide with the length of the front wall 37 of the lateral side frame member 35B to form notches 43, 43. The end of the lateral frame member 35B is engaged with the notch 43, and the side wall 46 is screwed at a position corresponding to the screw groove 41 of the rail member 40 of the lateral frame member 35B when engaged. A hole 44 is formed. The screw holes 44 of the vertical side frame member 35A may be formed out of the original position, that is, at positions that do not coincide with the rail part 40 of the horizontal side frame member 35B. If this is formed, it is possible to allow this positional shift and screw it.

  The lateral side frame member 35B is formed by integrally forming pipe-like objects corresponding to the front wall 37, the side wall 38, and the rail portion 40 by extrusion molding and cutting the pipe-like article into a predetermined length. The rail groove 40 may be formed by forming the screw groove 41 on the inner wall and forming the slit 42 as necessary. Further, the longitudinal side frame member 35A may be formed by integrally forming the front wall 45 and the side wall 46 and cutting it to a predetermined length, and then forming the notch 43 and the screw hole 44.

  The 2nd frame 14 is comprised as mentioned above, and a filter member is supported and accommodated by the rail part 40 of the frame material 35B for horizontal sides (refer FIG. 6, FIG. 7).

  As shown in FIGS. 5 to 7, the first frame body 13 and the second frame body 14 formed in this way are integrated so as to cover the first frame body 13 on the second frame body 14. The inventive filter frame 10 is completed. At that time, the locking claw portion 27 of the first frame body 13 and the locking claw portion 47 of the second frame body 14 are engaged to prevent rattling and separation (disconnection).

  The illustrated filter frame 10 shows a state in which a single filter member 12A is accommodated in the first frame 13 and a single filter member 12B is accommodated in the second frame 14, respectively. When the number of filter members to be changed is changed, it is only necessary to change the length of the side wall in each of the frames 13 and 14. Similarly, when the thickness of the filter member is changed, it is only necessary to change the length of the side wall in each of the frames 13 and 14.

It is a disassembled perspective view which shows the 1st frame of the frame for filters of this invention. It is a perspective view which shows the assembly | attachment state of the 1st frame shown in FIG. It is a disassembled perspective view which shows the 2nd frame of the frame for filters of this invention. It is a perspective view which shows the assembly | attachment state of the 2nd frame shown in FIG. It is a perspective view which shows the state which integrated the 1st frame and the 2nd frame. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Filter frame 12A Filter member 12B Filter member 13 1st frame 14 Second frame 15A Vertical side frame 15B Horizontal side frame 16 Screw 17 Front wall 18 Side wall 19 Locking claw part 19a Locking surface
20 Rail member 21 Thread groove 22 Slit 23 Notch portion 24 Screw hole 25 Front wall 26 Side wall 27 Locking claw portion 27a Locking surface 35A Vertical side frame member 35B Horizontal side frame member 36 Screw 37 Front wall 38 Side wall 39 Locking claw part 40 Rail member 41 Screw groove 42 Slit 43 Notch 44 Screw hole 45 Front wall 46 Side wall 47 Locking claw part 47a Locking surface

Claims (3)

A filter frame that holds filter members in a multi-layered state,
A front wall that abuts against the flat portion of the filter member, and a height corresponding to the thickness of the filter member accommodated from one edge of the front wall, and one locking piece at the tip portion A first frame formed by connecting frame members having a substantially L-shaped cross section composed of side walls having
A front wall that abuts against the flat portion of the filter member, and a height corresponding to the thickness of the filter member accommodated from one edge of the front wall, and the other locking piece at the tip A second frame body formed by connecting frame members having a substantially L-shaped cross section composed of side walls having
One of the two frame bodies can be slidably received in the other, and the both frame bodies are integrated by engaging locking pieces.   In the first frame body and the second frame body, one pair of frame members facing each other has a rail portion in which a screw groove is formed in the side wall, and the other pair of frame members are at both ends thereof. The side wall is cut at a length corresponding to the height of the side wall of one of the frame members, and the front portion has a notch portion in which a screw hole is formed corresponding to the rail portion, An end portion of one frame member is engaged with a notch portion of the other frame member, and a screw hole of the other frame member and a rail portion of one frame member are connected by screws. Item 2. A filter frame according to Item 1.   The filter frame according to claim 2, wherein a slit is formed in the rail portion over the entire length thereof.

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