JP2000061234A - Filter element provided with prefilter - Google Patents
Filter element provided with prefilterInfo
- Publication number
- JP2000061234A JP2000061234A JP10231924A JP23192498A JP2000061234A JP 2000061234 A JP2000061234 A JP 2000061234A JP 10231924 A JP10231924 A JP 10231924A JP 23192498 A JP23192498 A JP 23192498A JP 2000061234 A JP2000061234 A JP 2000061234A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- prefilter
- frame
- intermediate frame
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Filtering Materials (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】この発明は、メインフィルタ
の上流側にプレフィルタを配置したプレフィルタ付きフ
ィルタエレメントに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter element with a prefilter having a prefilter arranged upstream of a main filter.
【0002】[0002]
【従来の技術】この種のプレフィルタ付きエレメント
は、特開平10−85539号公報に開示されているこ
とからも知られている。この公報に開示されているプレ
フィルタ付きエレメントは、襞折りされたメインフィル
タと、該メインフィルタより上流側に配置された空隙率
の大きな不織布からなるプレフィルタと、該メインフィ
ルタの襞折り形状を保持するとともに該プレフィルタに
対向する端面に上流側に向かって突出して該プレフィル
タを取り付ける係止用突起が設けられた樹脂製フレーム
とからなっている。2. Description of the Related Art An element with a prefilter of this type is known from the fact that it is disclosed in Japanese Patent Laid-Open No. 10-85539. The element with a prefilter disclosed in this publication has a folded main filter, a prefilter made of a non-woven fabric having a large porosity disposed upstream of the main filter, and a folded shape of the main filter. The frame is made of resin and is provided with an engaging projection for holding the prefilter, which is held on the end surface facing the prefilter and projects toward the upstream side.
【0003】係止用突起は、プレフィルタを貫通する軸
部と、該軸部の先端側に形成されるとともに、該プレフ
ィルタの上流側に位置し、該プレフィルタを固定する先
端径大部をもつか、樹脂製フレームを構成する樹脂の融
点より高い融点をもつ素材から形成され、係止用突起の
先端径大部外径より大きな外径および該係止用突起の軸
部外径より大きな内径をもつ環状部材を、プレフィルタ
の上流側面と先端径大部との間に配置するか、プレフィ
ルタを固定する先端屈曲押さえ部をもつか、プレフィル
タを固定する傘状の把持部とを持つ止め具とからなる
か、プレフィルタに対向する端面には該プレフィルタを
取り付ける係止用穴をもつ樹脂製フレームとからなって
いる。The locking projections are formed on the shaft portion penetrating the prefilter and on the tip end side of the shaft portion, are located on the upstream side of the prefilter, and have a large tip diameter portion for fixing the prefilter. Or a material having a melting point higher than the melting point of the resin that constitutes the resin frame, the tip diameter of the locking projection is larger than the outer diameter of the large portion, and the outer diameter of the shaft portion of the locking projection is larger than the outer diameter. An annular member having a large inner diameter is arranged between the upstream side surface of the prefilter and the large tip diameter portion, has a tip bending presser portion for fixing the prefilter, or has an umbrella-shaped holding portion for fixing the prefilter. Or a resin frame having an engaging hole for mounting the prefilter on the end surface facing the prefilter.
【0004】また、プレフィルタは、樹脂製フレームの
係止用穴に対向する部分を凸状に硬化させた結合凸部を
持つとともに、該結合凸部を前記係止用穴に着脱可能に
挿入して、前記プレフィルタを樹脂製フレームに固定し
ている。Further, the prefilter has a connecting convex portion in which a portion of the resin frame facing the engaging hole is hardened in a convex shape, and the connecting convex portion is detachably inserted into the engaging hole. Then, the prefilter is fixed to the resin frame.
【0005】[0005]
【発明が解決しようとする課題】しかしながら、実際に
は以下に説明する技術課題があった。すなわち、上述し
た従来のプレフィルタ付きフィルタエレメントにあって
は、プレフィルタをメインフィルタに取り付ける手段が
複雑で部品代が高いとともに、組付けに時間を要してコ
スト高となる。また、プレフィルタの表面に取付け手段
の部品が露出するので外観上の美観を損ねるという問題
点があった。However, in reality, there were technical problems described below. That is, in the above-described conventional filter element with a pre-filter, the means for attaching the pre-filter to the main filter is complicated, the parts cost is high, and the assembly takes time and the cost is high. In addition, the parts of the attachment means are exposed on the surface of the prefilter, which impairs the aesthetic appearance.
【0006】この発明は、以上の問題点を解決するもの
であって、プレフィルタをメインフィルタに取り付ける
手段が簡素化しコストダウンが図れるとともに、プレフ
ィルタの表面に取付け手段の部品が露出しないので外観
上の美観を備えることとなるプレフィルタ付きフィルタ
エレメントを提供することを目的とする。The present invention solves the above problems and simplifies the means for attaching the pre-filter to the main filter to reduce the cost, and the parts of the attaching means are not exposed on the surface of the pre-filter. It is an object of the present invention to provide a filter element with a pre-filter which will have the above aesthetic appearance.
【0007】[0007]
【課題を解決するための手段】(1)前記目的を達成す
るために、この発明の請求項1は、メインフィルタの上
流側に空隙率の大きな不織布からなるプレフィルタを配
置し、該メインフィルタは蛇腹折りされた濾過材を保持
する樹脂製の基板フレームに端面フレームと中間フレー
ムとを少なくとも濾過材の上面まで突出させ、該端面フ
レームまたは中間フレームとプレフィルタとを超音波溶
着で固着してなることを特徴とする。(1) In order to achieve the above object, claim 1 of the present invention is characterized in that a prefilter made of a nonwoven fabric having a large porosity is arranged upstream of the main filter, and the main filter is provided. Is a resin-made substrate frame that holds the filter material folded in a bellows, and the end face frame and the intermediate frame are projected to at least the upper surface of the filter medium, and the end face frame or the intermediate frame and the pre-filter are fixed by ultrasonic welding. It is characterized by
【0008】以上の構成によれば、端面フレームまたは
中間フレームとプレフィルタとを超音波溶着で固着した
ので、プレフィルタをメインフィルタに取り付ける手段
が簡素化しコストダウンになるとともに、プレフィルタ
の表面に取付け手段の部品が露出しないので外観上の美
観を備えるプレフィルタ付きフィルタエレメントを提供
することができた。According to the above structure, since the end frame or the intermediate frame and the pre-filter are fixed by ultrasonic welding, the means for attaching the pre-filter to the main filter is simplified and the cost is reduced, and the surface of the pre-filter is attached. It was possible to provide a filter element with a pre-filter having an aesthetic appearance because the parts of the attachment means are not exposed.
【0009】(2)前記目的を達成するために、この発
明の請求項2は、請求項1に記載のプレフィルタ付きエ
レメントにおいて、前記端面フレームまたは中間フレー
ムの上部に突柱と、該突柱の高さまでプレフィルタの下
部に切込み部を設け、前記突柱をプレフィルタの下部の
切込み部に挿入して、該突柱とプレフィルタとを超音波
溶着で固着したことを特徴とする。(2) In order to achieve the above object, a second aspect of the present invention is the element with a prefilter according to the first aspect, wherein a projecting column is provided above the end frame or the intermediate frame, and the projecting column. Is provided at a lower portion of the pre-filter up to the height, and the projecting pillar is inserted into the lower cutting portion of the pre-filter, and the projecting pillar and the pre-filter are fixed by ultrasonic welding.
【0010】以上の構成によれば、プレフィルタの厚み
が厚い場合でも、該突柱の高さまでプレフィルタの下部
に切込み部を設け、前記突柱をプレフィルタの下部の切
込み部に挿入して、突柱とプレフィルタとを超音波溶着
で固着したので、プレフィルタの取付けが容易で、プレ
フィルタの取付けによるプレフィルタの変形を防止した
プレフィルタ付きフィルタエレメントを提供することが
できた。According to the above construction, even when the thickness of the pre-filter is large, a notch is formed in the lower part of the pre-filter up to the height of the projecting column, and the projecting column is inserted into the notch in the lower part of the pre-filter. Since the projecting column and the prefilter are fixed by ultrasonic welding, the prefilter can be easily attached, and it is possible to provide a filter element with a prefilter that prevents deformation of the prefilter due to the attachment of the prefilter.
【0011】[0011]
【発明の実施の形態】以下、請求項1,2に記載した発
明の好適な実施の形態を図面を用いて詳細に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the invention described in claims 1 and 2 will be described below in detail with reference to the drawings.
【0012】===実施形態1===
図1に示されているプレフィルタ付きフィルタエレメン
ト1は、図2に示すように、濾紙や不織布等の濾過材2
を蛇腹折りして、樹脂製の基板フレーム3と濾過材2の
上面まで突出させた端面フレーム4と中間フレーム5と
を固着してメインフィルタ6とし(端面フレーム4およ
び中間フレーム5が濾過材2の上面より2〜3mm程度
上部へ突出していることが溶け代をとる意味で望ましい
が、本発明はこのような上部突出がないものも含む)、
このメインフィルタ6の上流側にポリエステル、ナイロ
ン、アクリル、レーヨン、綿等の繊維から成り、目付け
量が100〜600g/m2 、空隙率が95〜99%の
プレフィルタ7を載置して、端面フレーム4か或いは中
間フレーム5が設けられた位置に相当するプレフィルタ
7の上部に超音波溶着機のホーン8を載せて超音波を与
えることにより、端面フレーム4か或いは中間フレーム
5とプレフィルタ7の一部が溶けて固まることによって
両者が固着して製造される。=== Embodiment 1 === As shown in FIG. 2, the filter element 1 with a pre-filter shown in FIG.
Is folded into a bellows and the substrate frame 3 made of resin and the end face frame 4 protruding to the upper surface of the filter medium 2 and the intermediate frame 5 are fixed to each other to form the main filter 6 (the end face frame 4 and the intermediate frame 5 are the filter medium 2). It is desirable that it protrudes from the upper surface by about 2 to 3 mm to the upper side in the sense of taking a melting allowance, but the present invention includes those without such an upper protrusion),
On the upstream side of the main filter 6, a prefilter 7 made of fibers such as polyester, nylon, acrylic, rayon, and cotton, having a basis weight of 100 to 600 g / m 2 and a porosity of 95 to 99% is placed, The horn 8 of the ultrasonic welding machine is placed on the prefilter 7 corresponding to the position where the end face frame 4 or the intermediate frame 5 is provided, and ultrasonic waves are applied to the end face frame 4 or the intermediate frame 5 and the prefilter. A part of 7 is melted and solidified, whereby both are fixed and manufactured.
【0013】以上の構成において、端面フレーム4か或
いは中間フレーム5が設けられた位置に相当するプレフ
ィルタ7の上部に超音波溶着機のホーン8を載せて超音
波を与えることにより、端面フレーム4か或いは中間フ
レーム5とプレフィルタ7の一部が溶けて固まることに
よって両者が固着するので部品点数が少なくコストダウ
ンとなり、またプレフィルタ7の表面に取付け手段の部
品が露出しないので外観上の美観を備えることとなる。
また、上面より2〜3mm程度上部へ突出させた突出部
4a,5aを有する端面フレーム4および中間フレーム
5を用いた場合には、メインフィルタ6の上面とプレフ
ィルタ7の下面との間に空間ができてメインフィルタ6
の全面をより有効に活用することができる。In the above structure, the horn 8 of the ultrasonic welding machine is placed on the upper portion of the pre-filter 7 corresponding to the position where the end face frame 4 or the intermediate frame 5 is provided, and ultrasonic waves are applied to the end face frame 4 Alternatively, the intermediate frame 5 and a part of the pre-filter 7 are melted and solidified to be fixed to each other, so that the number of parts is small and the cost is reduced, and the parts of the attaching means are not exposed on the surface of the pre-filter 7, so that the appearance is aesthetically pleasing. Will be equipped with.
Further, when the end face frame 4 and the intermediate frame 5 having the protruding portions 4a and 5a protruding upward from the upper surface by about 2 to 3 mm are used, a space is provided between the upper surface of the main filter 6 and the lower surface of the pre-filter 7. Main filter 6
The entire surface of can be used more effectively.
【0014】===実施形態2===
図3に示すプレフィルタ付きフィルタエレメント1は、
濾過材2を蛇腹折りして樹脂製の基板フレーム3と濾過
材2の上面まで突出した端面フレーム4と中間フレーム
5とに固着してメインフィルタ6とし、端面フレーム4
か或いは中間フレーム5の少なくとも4個所に、図4に
示すような突柱9と、図5に示すようにプレフィルタ7
の下部に突柱9と同じ高さで設けられた切込み部10と
を設け、突柱9をプレフィルタ7の下部の切込み部10
に挿入し、切込み部10内のプレフィルタ7を圧縮し
て、突柱9の位置のプレフィルタ7の上に超音波溶着機
のホーン8を載せて超音波を与えることにより、突柱9
とプレフィルタ7の一部が溶けて固まることによって両
者が固着してプレフィルタ付きフィルタエレメント1と
なる。=== Embodiment 2 === The filter element 1 with a pre-filter shown in FIG.
The filter medium 2 is bellows-folded and fixed to the resin-made substrate frame 3, the end face frame 4 protruding to the upper surface of the filter medium 2 and the intermediate frame 5 to form the main filter 6, and the end face frame 4
Alternatively, at least four positions of the intermediate frame 5 and the projecting pillar 9 as shown in FIG. 4 and the pre-filter 7 as shown in FIG.
A notch 10 provided at the same height as the protrusion 9 at the bottom of the pre-filter 7, and the protrusion 9 is provided at the notch 10 at the bottom of the prefilter 7.
, The pre-filter 7 in the notch 10 is compressed, and the horn 8 of the ultrasonic welding machine is placed on the pre-filter 7 at the position of the projecting column 9 to apply ultrasonic waves.
When a part of the prefilter 7 is melted and solidified, both are fixed and the filter element 1 with the prefilter is formed.
【0015】以上の構成によれば、プレフィルタ7の厚
みが厚い場合でも、突柱9と同じ高さまでプレフィルタ
7の下部に切込み部10を設けて、突柱9をプレフィル
タ7の下部の切込み部10に挿入し、切込み部10内の
プレフィルタ7を圧縮して、超音波溶接することにより
両者が固着するので、プレフィルタの取付けが容易で、
プレフィルタの取付けによるプレフィルタの変形を防止
することができ、またプレフィルタ7の表面に取付け手
段の部品が露出しないので外観上の美観を備えることと
なる。According to the above construction, even when the thickness of the pre-filter 7 is large, the notch 10 is provided in the lower portion of the pre-filter 7 to the same height as that of the projecting pillar 9 so that the projecting pillar 9 is provided in the lower portion of the pre-filter 7. The pre-filter 7 is inserted into the notch 10, the pre-filter 7 in the notch 10 is compressed, and the two are fixed by ultrasonic welding. Therefore, the pre-filter can be easily attached,
It is possible to prevent the deformation of the prefilter due to the mounting of the prefilter, and the parts of the mounting means are not exposed on the surface of the prefilter 7, so that the appearance is provided.
【0016】なお、実施形態2では、上部突出がないも
のを示しているが、実施形態1のような上部突出がある
ものに代えることもできる。In the second embodiment, the one without the upper protrusion is shown, but it may be replaced with the one with the upper protrusion as in the first embodiment.
【0017】[0017]
【発明の効果】以上の構成によれば、上述したように、
請求項1のプレフィルタ付きフィルタエレメントは、濾
過材を上部へ突出(望ましくは2〜3mm)させた端面
フレームと中間フレームを有する端面フレームと中間フ
レームに固着してメインフィルタとして、メインフィル
タの上流側にプレフィルタを載置したとき、端面フレー
ムまたは中間フレームの位置のプレフィルタの上部に超
音波溶着機のホーンを載せて超音波を与えることによ
り、端面フレームまたは中間フレームとプレフィルタの
一部が溶けて固まることによって両者が固着するので、
部品点数が少なくコストダウンとなり、またプレフィル
タの表面に取付け手段の部品が露出しないので外観上の
美観を備えることとなる。According to the above structure, as described above,
The filter element with a pre-filter according to claim 1 is fixed to an end face frame and an intermediate frame having an end face frame and an intermediate frame in which a filter medium is projected upward (preferably 2 to 3 mm), and is fixed as a main filter upstream of the main filter. When the pre-filter is placed on the side, the horn of the ultrasonic welding machine is placed on top of the pre-filter at the position of the end face frame or the intermediate frame, and ultrasonic waves are applied to the end face frame or the intermediate frame and a part of the pre filter. As the two melt and solidify, they stick together,
Since the number of parts is small and the cost is reduced, and the parts of the attachment means are not exposed on the surface of the prefilter, the appearance is provided.
【0018】請求項2のプレフィルタ付きフィルタエレ
メントは、プレフィルタの厚みが厚い場合でも、突柱と
同じ高さまでプレフィルタの下部に切込み部を設け、突
柱をプレフィルタの下部の切込み部に挿入し、切込み部
内のプレフィルタを圧縮して、突柱の位置のプレフィル
タの上に超音波溶着機のホーンを載せて超音波を与える
ことにより、突柱の上部のプレフィルタと突柱の一部が
溶けて固まることによって両者が固着するので、プレフ
ィルタの取付けが容易で、プレフィルタの取付けによる
プレフィルタの変形を防止することができ、またプレフ
ィルタの表面に取付け手段の部品が露出しないので外観
上の美観を備えることとなる。In the filter element with a prefilter according to a second aspect of the present invention, even if the thickness of the prefilter is large, a notch is provided in the lower part of the prefilter to the same height as the projecting column, and the projecting column is provided in the notch in the lower part of the prefilter. Insert and compress the pre-filter in the notch, and place the horn of the ultrasonic welding machine on the pre-filter at the position of the projecting column to give ultrasonic waves. The parts are melted and solidified to fix them, so that the pre-filter can be easily installed, the deformation of the pre-filter due to the installation of the pre-filter can be prevented, and the parts of the installation means are exposed on the surface of the pre-filter. Since it does not, it has an aesthetic appearance.
【図1】この発明による実施形態1のプレフィルタ付き
フィルタエレメントを示す斜視図である。FIG. 1 is a perspective view showing a filter element with a prefilter according to a first embodiment of the present invention.
【図2】同プレフィルタ付きフィルタエレメントのメイ
ンフィルタを示す斜視図である。FIG. 2 is a perspective view showing a main filter of the filter element with the prefilter.
【図3】この発明による実施形態2のプレフィルタ付き
フィルタエレメントを示す斜視図である。FIG. 3 is a perspective view showing a filter element with a prefilter according to a second embodiment of the present invention.
【図4】同プレフィルタ付きフィルタエレメントの中間
フレーム部を示す断面図である。FIG. 4 is a cross-sectional view showing an intermediate frame portion of the filter element with the prefilter.
【図5】同プレフィルタ付きフィルタエレメントにおけ
るプレフィルタの切込み部を示す断面図である。FIG. 5 is a cross-sectional view showing a cut portion of a pre-filter in the filter element with the pre-filter.
2 濾過材 3 基板フレーム 4 端面フレーム 5 中間フレーム 6 メインフィルタ 7 プレフィルタ 8 ホーン 9 突柱 10 切込み部 2 Filter material 3 PCB frame 4 end face frame 5 middle frame 6 Main filter 7 pre-filter 8 horns 9 Projection 10 notch
───────────────────────────────────────────────────── フロントページの続き Fターム(参考) 4D019 AA01 BA13 BB02 BB03 BB05 BB10 BD01 CA02 CB01 CB03 CB06 4D058 JA12 JA14 JB14 JB25 JB26 JB39 KA01 KA13 KA23 KA25 ─────────────────────────────────────────────────── ─── Continued front page F term (reference) 4D019 AA01 BA13 BB02 BB03 BB05 BB10 BD01 CA02 CB01 CB03 CB06 4D058 JA12 JA14 JB14 JB25 JB26 JB39 KA01 KA13 KA23 KA25
Claims (2)
な不織布からなるプレフィルタを配置し、該メインフィ
ルタは蛇腹折りされた濾過材を保持する樹脂製の基板フ
レームに端面フレームと中間フレームとを少なくとも濾
過材の上面まで突出させ、該端面フレームまたは中間フ
レームとプレフィルタとを超音波溶着で固着してなるこ
とを特徴とするプレフィルタ付きエレメント。1. A pre-filter made of non-woven fabric having a large porosity is arranged on the upstream side of the main filter, and the main filter has a resin-made substrate frame holding a bellows-folded filter medium and an end face frame and an intermediate frame. An element with a prefilter, characterized in that it is made to project at least to the upper surface of a filter medium, and the end face frame or intermediate frame and the prefilter are fixed by ultrasonic welding.
メントにおいて、前記端面フレームまたは中間フレーム
の上部に突柱と、該突柱の高さまでプレフィルタの下部
に切込み部を設け、前記突柱をプレフィルタの下部の切
込み部に挿入して、該突柱とプレフィルタとを超音波溶
着で固着したことを特徴とするプレフィルタ付きフィル
タエレメント。2. The element with a prefilter according to claim 1, wherein a projecting column is provided on an upper portion of the end face frame or the intermediate frame, and a notch is provided on a lower portion of the prefilter up to the height of the projecting column, and the projecting column is provided. A filter element with a pre-filter, characterized in that the protrusion and the pre-filter are fixed to each other by ultrasonic welding by inserting the pre-filter into a notch in the lower part of the pre-filter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23192498A JP4113621B2 (en) | 1998-08-18 | 1998-08-18 | Filter element with pre-filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23192498A JP4113621B2 (en) | 1998-08-18 | 1998-08-18 | Filter element with pre-filter |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000061234A true JP2000061234A (en) | 2000-02-29 |
JP4113621B2 JP4113621B2 (en) | 2008-07-09 |
Family
ID=16931205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23192498A Expired - Lifetime JP4113621B2 (en) | 1998-08-18 | 1998-08-18 | Filter element with pre-filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4113621B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007209769A (en) * | 2003-03-13 | 2007-08-23 | Douglas K Beplate | Filtering device incorporating nanoparticles |
JP2015167931A (en) * | 2014-03-10 | 2015-09-28 | 日本バイリーン株式会社 | Filter medium and filter element |
JP7130861B2 (en) | 2018-05-30 | 2022-09-05 | クノル-ブレムゼ エスパーニャ,エセ.ア. | AIR FILTER AND METHOD FOR MANUFACTURING AIR FILTER |
-
1998
- 1998-08-18 JP JP23192498A patent/JP4113621B2/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007209769A (en) * | 2003-03-13 | 2007-08-23 | Douglas K Beplate | Filtering device incorporating nanoparticles |
JP2015167931A (en) * | 2014-03-10 | 2015-09-28 | 日本バイリーン株式会社 | Filter medium and filter element |
JP7130861B2 (en) | 2018-05-30 | 2022-09-05 | クノル-ブレムゼ エスパーニャ,エセ.ア. | AIR FILTER AND METHOD FOR MANUFACTURING AIR FILTER |
Also Published As
Publication number | Publication date |
---|---|
JP4113621B2 (en) | 2008-07-09 |
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