JPH0719542Y2 - Mounting band for tubular air cleaner - Google Patents

Description

【考案の詳細な説明】 ［産業上の利用分野］ 本考案は筒形エアクリーナの取付けに関し、更に詳細に
は取付け対象面に配置固着された鋼板製帯状バンドによ
り、主として合成樹脂等の非金属材より成るケーシング
を抱き込んで締付け固定するのに有効な取付けバンドに
関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to mounting of a cylindrical air cleaner, and more specifically to a non-metal material such as a synthetic resin mainly due to a strip-shaped band made of steel plate arranged and fixed to a surface to be mounted. The present invention relates to a mounting band effective for embracing and tightening a casing made of the same.

［従来の技術］ 従来よりこの種の取付け形式として多く用いられている
例では、取付け対象面に固着された帯状バンドの、固着
位置から離れた任意の箇所に所定の間隔を保つ開口部が
あり、その両端は半径方向外側に平行に折り曲げて座面
を形成し、その中央に設けた同心の連結用穴にボルトを
貫通し、相互の座面より成る開口部を狭めるようにナツ
ト締めすることにより、ケーシングを抱き込み締付けて
固定している。[Prior Art] In an example that has been widely used as a mounting type of this type from the past, there is an opening portion that keeps a predetermined interval at an arbitrary position apart from a fixing position of a band-shaped band fixed to a surface to be mounted. , Both ends of which should be bent radially outward in parallel to form a seating surface, and a bolt should be inserted through a concentric connecting hole in the center of the seating surface, and nuts should be tightened so as to narrow the openings formed by the mutual seating surfaces. By this, the casing is wrapped and clamped and fixed.

［考案が解決しようとする問題点］ 最近、小型や中型のエアクリーナでは、安価で軽量化に
もなる合成樹脂等の非金属材が多く採用されているが、
筒形の場合これを所定位置に固着された帯状バンドで抱
き込み締付けて固定する形式としたものは、寒冷時等の
気温が低下した際、ケーシングの収縮率が金属に比べ大
きいためケーシングの外周が縮小して鋼板製バンドとの
間にゆるみが生じ、エンジンに取付けたものではこの状
態でエンジンを始動させると、吸気管とエアクリーナと
の接続部またはエアクリーナの空気取入れキャップ取付
け部に振動が波及するためゆるみが生じる外、ケーシン
グの回動も抑止できなくなるなどの結果、ダストや水の
浸入、更には破損の原因にもなるという問題点があっ
た。[Problems to be solved by the invention] Recently, non-metal materials such as synthetic resins, which are inexpensive and lightweight, are often used in small and medium-sized air cleaners.
In the case of a cylindrical type, the type that wraps it in a band-shaped band that is fixed at a predetermined position and tightens it to fix it, because the contraction rate of the casing is larger than that of metal when the temperature drops during cold weather etc. Will be loosened between the steel band and the steel band, and if the engine is attached to the engine and the engine is started in this state, vibration will spread to the connection between the intake pipe and the air cleaner or the air intake cap attachment of the air cleaner. As a result, there is a problem in that, in addition to the occurrence of looseness, the rotation of the casing cannot be suppressed, resulting in the intrusion of dust and water and the damage thereof.

［問題点を解決するための手段および作用］ 前述の問題点を解決する手段として、鋼板製の帯状バン
ドによってケーシングを抱き込み、バンドの開口部を狭
める方向に締付ける従来のボルト・ナットによる方法に
替えて、コイルスプリングの圧縮圧力によってバンドの
開口部を狭める方向に付勢し締付け固定する構造とする
もので、スプリングの圧縮圧力を従来のボルト・ナット
による締付トルク相当に設定することで常時従来同様に
締付け固定しているが、寒冷時等の気温低下によってケ
ーシング外周が縮小する場合はそれに追従してバンドの
開口部を狭め締付けを維持するため、ゆるみによる従来
の弊害が防止できるというものである。[Means and Actions for Solving Problems] As a means for solving the above-mentioned problems, a conventional bolt / nut method in which a casing is held by a strip band made of steel plate and tightened in a direction to narrow the opening of the band Instead, the structure is such that the compression pressure of the coil spring urges the band opening to narrow it and tightens and fixes it.By always setting the compression pressure of the spring to the tightening torque of the conventional bolts and nuts, Although it is tightened and fixed in the same manner as in the past, when the outer circumference of the casing shrinks due to a decrease in temperature such as during cold weather, the tightening is maintained by narrowing the opening of the band and keeping the tightening in place. Is.

〔実施例〕〔Example〕

以下に本考案の実施例に基づき、図面お参照しながら詳
細に説明をする。An embodiment of the present invention will be described below in detail with reference to the drawings.

第１図は本考案の取付けバンドによって、合成樹脂製エ
アクリーナケーシングを抱き込み締付けた状態を示す正
面図で、第２図は側面図を示す。FIG. 1 is a front view showing a state in which a synthetic resin air cleaner casing is held and tightened by the mounting band of the present invention, and FIG. 2 is a side view.

エアクリーナの合成樹脂製ケーシング外周と同等の内径
とした環状の鋼板製帯状バンド１は、締付け板２にこれ
と同幅で環状中心線に対し左右対称形とした支持板３を
３箇所で溶着し、左右２箇所の取付穴４をボルト締めに
より固着する。An annular steel band strip 1 having an inner diameter equivalent to the outer circumference of a synthetic resin casing of an air cleaner is formed by welding a tightening plate 2 to three support plates 3 of the same width and symmetrical with respect to an annular center line at three positions. , The left and right mounting holes 4 are fixed by bolting.

締付け板２は環状における支持板溶着中央より約90°回
った位置に所定の間隔を保つ開口部５があり、その両端
を半径方向外側に平行に折り曲げ座面6,7を形成し、座
面６には小径の、座面７には大径の連結穴を設け、大径
穴とは若干隙間がある直径とした連結軸８を挿嵌し、第
３図に示すとおり座面６に当接させ、連結軸８の両端に
設けたねじ穴の１つを介し座面６を狭持する形でばね座
金10を挟みボルト11で締付け固着する。The tightening plate 2 has an opening 5 at a position rotated about 90 ° from the center of welding of the support plate in the annular shape and maintaining a predetermined interval, and both ends thereof are bent radially outward to form seating surfaces 6 and 7, and the seating surface is formed. 6 has a small-diameter connecting hole on the seat surface 7, and a large-diameter connecting hole on the seat surface 7. A connecting shaft 8 having a diameter with a slight gap from the large-diameter hole is inserted and fitted to the seat surface 6 as shown in FIG. The spring washer 10 is clamped and fixed by the bolts 11 so that the bearing surface 6 is clamped through one of the screw holes provided at both ends of the connecting shaft 8.

なお、連結軸８に設けた両切欠き部９は、対辺面として
締付け時の共回りを押えるために使用する。Both notches 9 provided on the connecting shaft 8 are used as opposite sides to hold down the co-rotation during tightening.

座面７より突出した連結軸８にはコイルスプリング12を
嵌装し、ワッシャ13によって軸端に当接するまで圧縮
し、ボルト11で締付け固着する。このときのコイルスプ
リング12の圧縮圧力が、従来のボルト・ナットによる締
付けトルク相当になるよう設定することで、常時従来同
様にケーシングを締付け固定しているが、寒冷時等の気
温低下に伴いケーシング外周が縮小する場合はそれに追
従してバンド１の開口部５を狭め、また、一たん低下し
た気温が上昇しケーシング外周が復元する際は開口部５
も追従して復元し、締付けを維持するというものであ
る。A coil spring 12 is fitted on the connecting shaft 8 protruding from the seat surface 7, compressed by a washer 13 until it comes into contact with the shaft end, and fixed by tightening with a bolt 11. By setting the compression pressure of the coil spring 12 at this time to be equivalent to the tightening torque of the conventional bolts and nuts, the casing is always tightened and fixed in the same manner as in the conventional case, but the casing decreases with a decrease in temperature such as during cold weather. When the outer circumference shrinks, the opening 5 of the band 1 is narrowed accordingly, and when the temperature decreases just once and the casing outer circumference is restored, the opening 5 is closed.
It is also to follow and restore and maintain tightening.

［考案の効果］ 前述したとおりケーシングを抱き込んだ鋼板製帯状バン
ドの、開口部両座面をコイルスプリングの圧縮圧力によ
って常時狭める方向に付勢しているため、気温の低下に
よってケーシング外周が縮小してもそれに追従して開口
部を狭めることで、締付けにゆるみを生ずることがな
く、ゆるみによる種々の弊害が防止できる。特に収縮率
が大きい合成樹脂等の非金属材より成るエアクリーナケ
ーシングに対し有効である。[Advantages of the Invention] As described above, since the strip-shaped band made of steel plate enclosing the casing is urged in such a direction as to constantly narrow the both seat surfaces of the opening by the compression pressure of the coil spring, the outer circumference of the casing is reduced due to the decrease in temperature. Even if the opening is narrowed following this, the tightening will not be loosened, and various problems due to the loosening can be prevented. It is particularly effective for an air cleaner casing made of a non-metallic material such as synthetic resin having a large shrinkage ratio.

また、座面の開口部外に突出した連結軸の長さをコイル
スプリングの圧縮長とし、このときの圧縮圧力を従来の
ボルト・ナットによる締付けトルク相当になるよう設定
することにより、バンドによるケーシング抱き込みの締
め過ぎや締め不足の整備不良がなくなる。In addition, the length of the connecting shaft protruding outside the opening of the seat surface is set as the compression length of the coil spring, and the compression pressure at this time is set to be equivalent to the tightening torque of the conventional bolts and nuts. Over-tightening or under-tightening will not result in poor maintenance.

以上は本考案の一実施例に基づき説明したが、これに限
定されるものではなく種々の変化変形が可能なことはい
うまでもない。Although the above is described based on the embodiment of the present invention, it is needless to say that the present invention is not limited to this and various changes and modifications can be made.

【図面の簡単な説明】[Brief description of drawings]

第１図は本考案の取付けバンドによって合成樹脂製エア
クリーナケーシングを抱き込み締付けた状態の正面図、
第２図はその側面図、第３図はバンドの開口部に組付け
られた部品の断面拡大図を示す。 1:バンド、2:締付け板、3:支持板、5:開口部、6:座面、
7:座面、8:連結軸、11:ボルト、12:コイルスプリング、
13:ワッシャ、FIG. 1 is a front view of a state in which a synthetic resin air cleaner casing is held and tightened by the mounting band of the present invention,
FIG. 2 is a side view thereof, and FIG. 3 is an enlarged cross-sectional view of the parts assembled in the opening of the band. 1: band, 2: tightening plate, 3: support plate, 5: opening, 6: seat surface,
7: seat surface, 8: connecting shaft, 11: bolt, 12: coil spring,
13: washer

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項１】所定位置に固着された帯状バンドで筒形エ
アクリーナのケーシングを抱き込み、バンドの開口部を
相互に引き寄せ締付ける形式の取付けバンドにおいて、
筒形ケーシングの外周と同等内径の環状とした帯状バン
ドの、バンド固着位置から離れた任意の箇所に所定の間
隔を保つ開口部があり、その両端は半径方向外側に平行
に折り曲げてそれぞれ座面を形成し、両座面中央に同心
でいずれか一方を大径に、他方を小径とした連結穴を設
け、その大径穴とは若干隙間を持つ直径の連結軸で、軸
両端面中央には前記座面の小径穴に適合するボルト用の
ねじ穴が設けてあり、これを大径穴の座面より挿嵌して
他方の座面へ当接させ、前記ねじ穴を介しボルト締めで
座面を挟持し固着する一方、軸他端は大径穴の座面より
所定長さだけ突出する長さとし、軸に巻きつく状態のコ
イルスプリングを端部より嵌装し、バンドによりケーシ
ングを抱き込み後抑えワッシャにより軸端より長いコイ
ルスプリングを軸端に当接するまで圧縮し、このワッシ
ャを前記ねじ穴を介しボルト締めで固着することによ
り、スプリングの圧力で両座面が開口部を狭める方向に
付勢され、ケーシングを締付け固定することを特徴とし
た筒形エアクリーナ用取付けバンド。1. A mounting band of a type in which a casing of a tubular air cleaner is held by a band-shaped band fixed at a predetermined position and the opening portions of the band are pulled together and tightened.
An annular band having the same inner diameter as the outer circumference of the cylindrical casing has openings at a given distance away from the band fixing position, both ends of which are bent in parallel to the outside in the radial direction and seated respectively. A concentric connecting hole is formed in the center of both bearing surfaces, one of which has a large diameter and the other of which has a small diameter. Has a screw hole for a bolt that fits the small diameter hole of the seat surface, inserts this from the seat surface of the large diameter hole and makes contact with the other seat surface, and tighten the bolt through the screw hole. The seating surface is clamped and fixed, while the other end of the shaft has a length that protrudes from the seating surface of the large-diameter hole by a specified length, a coil spring wound around the shaft is fitted from the end, and the band holds the casing. After installation, the holding washer holds the coil spring longer than the shaft end. By pressing the washer through the screw hole and fixing it by bolting, both seat surfaces are urged in the direction of narrowing the opening by the pressure of the spring, and the casing is tightened and fixed. Mounting band for the cylindrical air cleaner.