JP2000257672A - Vibration isolating structure - Google Patents
Vibration isolating structureInfo
- Publication number
- JP2000257672A JP2000257672A JP11062669A JP6266999A JP2000257672A JP 2000257672 A JP2000257672 A JP 2000257672A JP 11062669 A JP11062669 A JP 11062669A JP 6266999 A JP6266999 A JP 6266999A JP 2000257672 A JP2000257672 A JP 2000257672A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- end surface
- elastic member
- collar
- hole
- 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
- Cleaning Of Streets, Tracks, Or Beaches (AREA)
- Vibration Prevention Devices (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は防振構造に係わり、
特に振動部材から伝わる振動を低減する防振構造に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration structure,
In particular, the present invention relates to an anti-vibration structure for reducing vibration transmitted from a vibration member.
【０００２】[0002]
【従来の技術】従来、図５に示すような防振構造が知ら
れている（特開平１０−２６６８６７）。図５におい
て、動力源３と人体接触部６との間に防振ゴム１１が介
装されている。この防振ゴム１１と人体接触部６を貫通
して中空円筒状のスペーサ１９が配設されている。スペ
ーサ１９の一端は、動力源３と当接している。スペーサ
１９の他端は、平板状のフランジ１９ａが延長形成さ
れ、座がねの役割をしている。スペーサ１９の他端側よ
りボルト１５が挿入され、ボルト１５の先端は、動力源
３に配設された雌ねじ１８に対し螺着される。2. Description of the Related Art Conventionally, an anti-vibration structure as shown in FIG. 5 is known (Japanese Patent Application Laid-Open No. 10-266867). In FIG. 5, an anti-vibration rubber 11 is interposed between the power source 3 and the human body contact part 6. A hollow cylindrical spacer 19 is provided so as to penetrate the anti-vibration rubber 11 and the human body contact portion 6. One end of the spacer 19 is in contact with the power source 3. At the other end of the spacer 19, a flat flange 19a is formed so as to extend, and serves as a seat. A bolt 15 is inserted from the other end of the spacer 19, and a tip of the bolt 15 is screwed to a female screw 18 provided in the power source 3.
【０００３】[0003]
【発明が解決しようとする課題】ところで、従来の防振
構造では、防振ゴム１１が動力源３の片側のみに配設さ
れているため、防振効果はその分弱いおそれがあった。
また、動力源３の振動はボルト１５や固い部材であるス
ペーサ１９を伝わり、人体接触部６に伝えられるおそれ
もあった。By the way, in the conventional anti-vibration structure, since the anti-vibration rubber 11 is disposed only on one side of the power source 3, the anti-vibration effect may be weakened accordingly.
Further, the vibration of the power source 3 may be transmitted to the bolt 15 or the spacer 19 which is a hard member, and may be transmitted to the human body contact portion 6.
【０００４】更に、防振ゴム１１が動力源３と人体接触
部６との間に直列に挟装され、ボルト１５により締結さ
れているため、締結方向以外に振動の散逸する自由度が
少ない。このため、動力源３より発生する全方向的な防
振効果が薄いおそれがあった。Further, since the vibration-proof rubber 11 is sandwiched in series between the power source 3 and the human body contact portion 6 and is fastened by the bolt 15, there is little freedom of vibration to be dissipated in directions other than the fastening direction. For this reason, the omnidirectional anti-vibration effect generated by the power source 3 may be weak.
【０００５】本発明はこのような従来の課題に鑑みてな
されたもので、振動部材から伝わる振動を低減する防振
構造を提供することを目的とする。[0005] The present invention has been made in view of such a conventional problem, and has as its object to provide a vibration-proof structure that reduces vibration transmitted from a vibration member.
【０００６】[0006]
【課題を解決するための手段】このため本発明（請求項
１）は、振動部材（２３）と、該振動部材（２３）に一
端面が固着若しくは螺着された第１の弾性部材（２５）
と、該第１の弾性部材（２５）の他端面に一端面が当接
され、貫通孔（３１）が開けられる被振動伝達部材（２
９）と、該被振動伝達部材（２９）の前記貫通孔（３
１）に挿通され、一端が前記第１の弾性部材（２５）の
他端面又は前記被振動伝達部材（２９）の一端面側の前
記貫通孔（３１）内側に周設された停止部に当接され、
他端が前記被振動伝達部材（２９）の他端面より所定長
突設された中空のカラー（３３）と、該カラー（３３）
に貫通され、一端面が前記被振動伝達部材（２９）の他
端面に当接した第２の弾性部材（３９）と、前記第１の
弾性部材（２５）の他端面より突出し、前記貫通孔（３
１）及び前記カラー（３３）を貫通する垂設棒（２１）
と、該垂設棒（２１）に案内され、前記第２の弾性部材
（３９）の他端面及び／又は前記カラー（３３）の他端
を締め付け固定する締付固定手段（３７）とを備え、前
記第１の弾性部材（２５）は、前記第１の弾性部材（２
５）の前記一端面及び前記他端面より軸方向中心部に向
かうに連れて曲線状に次第に径をすぼめたことを特徴と
する。Therefore, the present invention (claim 1) provides a vibration member (23) and a first elastic member (25) having one end surface fixed or screwed to the vibration member (23). )
And a vibration transmission member (2) having one end face abutting on the other end face of the first elastic member (25) and opening a through hole (31).
9) and the through hole (3) of the vibration transmission member (29).
1), one end of which contacts a stop provided around the other end surface of the first elastic member (25) or the through hole (31) on one end surface side of the vibration transmission member (29). Touched,
A hollow collar (33) having the other end protruding by a predetermined length from the other end surface of the vibration transmission member (29);
A second elastic member (39) whose one end surface is in contact with the other end surface of the vibrated transmission member (29); and a second elastic member (25) protruding from the other end surface of the first elastic member (25); (3
1) and a hanging rod (21) penetrating the collar (33).
And a fastening means (37) guided by the hanging rod (21) and fastening and fixing the other end surface of the second elastic member (39) and / or the other end of the collar (33). , The first elastic member (25) is connected to the first elastic member (2).
5) The diameter is gradually reduced in a curved shape toward the axial center from the one end face and the other end face.
【０００７】第１の弾性部材（２５）は、振動部材（２
３）に一端面が固着若しくは螺着されている。被振動伝
達部材（２９）は、第１の弾性部材（２５）の他端面に
一端面が当接され、貫通孔（３１）が開けられている。[0007] The first elastic member (25) is provided with a vibrating member (2).
3) has one end surface fixed or screwed. One end surface of the vibration transmission member (29) is in contact with the other end surface of the first elastic member (25), and a through hole (31) is opened.
【０００８】カラー（３３）は中空である。そして、こ
のカラー（３３）は、被振動伝達部材（２９）の貫通孔
（３１）に挿通され、一端が第１の弾性部材（２５）の
他端面に当接されている。但し、被振動伝達部材（２
９）の一端面側の貫通孔（３１）内側に周設された停止
部に、このカラー（３３）の一端を停止するようにして
もよい。The collar (33) is hollow. The collar (33) is inserted into the through hole (31) of the vibration transmission member (29), and one end of the collar (33) is in contact with the other end surface of the first elastic member (25). However, the vibration transmission member (2
One end of the collar (33) may be stopped at a stop portion provided around the inside of the through hole (31) on one end surface side of 9).
【０００９】また、このカラー（３３）の他端は、被振
動伝達部材（２９）の他端面より所定長突設されてい
る。第２の弾性部材（３９）は、カラー（３３）に貫通
され、一端面が被振動伝達部材（２９）の他端面に当接
している。The other end of the collar (33) protrudes by a predetermined length from the other end surface of the vibration transmission member (29). The second elastic member (39) is penetrated by the collar (33), and has one end surface in contact with the other end surface of the vibration transmission member (29).
【００１０】垂設棒（２１）は、第１の弾性部材（２
５）の他端面より突出し、貫通孔（３１）及びカラー
（３３）を貫通している。締付固定手段（３７）は、こ
の垂設棒（２１）に案内され、第２の弾性部材（３９）
の他端面及び／又はカラー（３３）の他端を締め付け固
定する。ここに、カラー（３３）の他端のみを締め付け
固定する場合には、第２の弾性部材（３９）の厚みはカ
ラー（３３）の被振動伝達部材（２９）の他端面より突
設させた長さに一致させるのが望ましい。The vertical rod (21) is connected to the first elastic member (2).
5), and penetrates the through hole (31) and the collar (33). The fastening and fixing means (37) is guided by the hanging rod (21), and is connected to the second elastic member (39).
And / or the other end of the collar (33). Here, when only the other end of the collar (33) is tightened and fixed, the thickness of the second elastic member (39) protrudes from the other end surface of the vibration transmission member (29) of the collar (33). It is desirable to match the length.
【００１１】第１の弾性部材（２５）は、第１の弾性部
材（２５）の一端面及び他端面より軸方向中心部に向か
うに連れて曲線状に次第に径をすぼめるように形成す
る。すぼめ方は均等であるのが望ましい。このすぼみに
より、第１の弾性部材中を伝わった振動が曲線状に空気
と面した開放端（２５ａ）により自由方向に散逸若しく
は反射される。従って、第１の弾性部材（２５）を経て
伝達される振動量は少ない。The first elastic member (25) is formed so as to gradually decrease its diameter in a curved line toward the axial center from one end surface and the other end surface of the first elastic member (25). It is desirable that pursed be uniform. Due to the depression, the vibration transmitted through the first elastic member is dissipated or reflected in the free direction by the open end (25a) facing the air in a curved shape. Therefore, the amount of vibration transmitted through the first elastic member (25) is small.
【００１２】被振動伝達部材（２９）の他端面と締付固
定手段（３７）の間には、第２の弾性部材（３９）が介
在する。このため、締付固定手段（３７）より直接的に
伝達される振動量は少なくなる。そして、被振動伝達部
材（２９）は、両側から第１の弾性部材（２５）と第２
の弾性部材（３９）に挟まれるため、振動をサイン波に
例えるとプラス側とマイナス側の両振動を効率良く吸収
出来る。以上により、振動部材（２３）側より被振動伝
達部材（２９）側に振動のより伝わり難い構造とするこ
とが出来る。A second elastic member (39) is interposed between the other end surface of the vibration transmission member (29) and the fastening means (37). Therefore, the amount of vibration transmitted directly from the fastening means (37) is reduced. The vibration transmitting member (29) is connected to the first elastic member (25) and the second elastic member (25) from both sides.
Since the vibration is likened to a sine wave, both vibrations on the plus side and the minus side can be efficiently absorbed. As described above, it is possible to obtain a structure in which the vibration is hardly transmitted from the vibration member (23) to the vibration transmission member (29).
【００１３】また、本発明（請求項２）は、振動部材
（２３）と、該振動部材（２３）に一端面が固着若しく
は螺着された第１の弾性部材（２５）と、該第１の弾性
部材（２５）の他端面に一端面が当接され、貫通孔（３
１）が開けられる被振動伝達部材（２９）と、該被振動
伝達部材（２９）の前記貫通孔（３１）に挿通され、一
端が前記第１の弾性部材（２５）の他端面又は前記被振
動伝達部材（２９）の一端面側の前記貫通孔（３１）内
側に周設された停止部に当接され、他端が前記被振動伝
達部材（２９）の他端面より所定長突設された中空のカ
ラー（３３）と、該カラー（３３）に貫通され、一端面
が前記被振動伝達部材（２９）の他端面に当接した第２
の弾性部材（３９）と、前記第１の弾性部材（２５）の
他端面より突出し、前記貫通孔（３１）及び前記カラー
（３３）を貫通する垂設棒（２１）と、該垂設棒（２
１）に案内され、前記第２の弾性部材（３９）の他端面
及び／又は前記カラー（３３）の他端を締め付け固定す
る締付固定手段（３７）とを備え、前記貫通孔（３１）
は長孔とし、長孔の方向を低減したい振動の方向と一致
させたことを特徴とする。The present invention (Claim 2) provides a vibration member (23), a first elastic member (25) having one end surface fixed or screwed to the vibration member (23), One end surface is in contact with the other end surface of the elastic member (25) of the through hole (3).
1) The vibration transmitting member (29) to be opened, and the vibration transmitting member (29) is inserted into the through hole (31), and one end of the vibration transmitting member (29) has the other end surface of the first elastic member (25) or the vibration receiving member. One end surface of the vibration transmitting member (29) is in contact with a stop provided around the inside of the through hole (31), and the other end is protruded by a predetermined length from the other end surface of the vibration transmitted member (29). A hollow collar (33), a second collar penetrating through the collar (33) and having one end face abutting against the other end face of the vibration transmission member (29).
An elastic member (39), a vertical rod (21) projecting from the other end surface of the first elastic member (25), and penetrating through the through hole (31) and the collar (33); (2
(1) being guided by the first elastic member (39) and / or fastening means (37) for fastening and fixing the other end surface of the second elastic member (39) and / or the other end of the collar (33).
Is a long hole, and the direction of the long hole is matched with the direction of vibration to be reduced.
【００１４】貫通孔（３１）は長孔とし、長孔の方向を
低減したい振動の方向と一致させる。長孔としたのは、
長孔の幅は狭い状態におくことで、締付固定手段（３
７）による締め付け固定の機能を担保するためである。The through hole (31) is a long hole, and the direction of the long hole coincides with the direction of vibration to be reduced. The long hole
By keeping the width of the long hole narrow, the fastening and fixing means (3
This is to secure the function of fastening and fixing according to 7).
【００１５】例えば、長孔を鉛直方向に配設した場合に
は、振動部材（２３）より伝えられた鉛直方向の振動に
より、垂設棒（２１）は鉛直方向に揺動可能である。そ
して、この揺動は、第２の弾性部材（３９）に伝えられ
るため、第２の弾性部材（３９）により効率良く吸収さ
れる。For example, when the long holes are provided in the vertical direction, the vertical rod (21) can swing in the vertical direction by the vertical vibration transmitted from the vibration member (23). Then, since this swing is transmitted to the second elastic member (39), it is efficiently absorbed by the second elastic member (39).
【００１６】更に、本発明（請求項３）は、前記第１の
弾性部材（２５）は、前記第１の弾性部材（２５）の前
記一端面及び前記他端面より軸方向中心部に向かうに連
れて曲線状に次第に径をすぼめたことを特徴とする。Further, according to the present invention (claim 3), the first elastic member (25) moves toward the center in the axial direction from the one end face and the other end face of the first elastic member (25). The diameter is gradually reduced in a curved shape.
【００１７】第１の弾性部材（２５）に対し、曲線状の
すぼみを配設すると共に貫通孔（３１）を長孔としたこ
とで、振動部材（２３）より伝えられた振動が全方向的
に効率よく吸収出来る。このため、防振効果は高い。The first elastic member (25) is provided with a curved recess and the through hole (31) is elongated, so that the vibration transmitted from the vibration member (23) can be omnidirectional. Can be absorbed efficiently. Therefore, the anti-vibration effect is high.
【００１８】[0018]
【発明の実施の形態】以下、本発明の実施形態を図面に
基づいて説明する。本発明の実施形態の構成図を図１及
び図２に示す。図１は本発明の実施形態の側面図であ
り、図２は本発明の実施形態の正面図である。図１にお
いて、第１の弾性部材に相当する防振ゴム２５の右端に
は、剛性板２７ａが、また左端には剛性板２７ｂが固着
されている。剛性板２７ａの右側に突出し、周囲に雄ね
じの螺刻された垂設棒４１が振動部材に相当するファン
ケース２３に対し螺着され、剛性板２７ａは、ファンケ
ース２３に当接している。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 and FIG. 2 show configuration diagrams of an embodiment of the present invention. FIG. 1 is a side view of an embodiment of the present invention, and FIG. 2 is a front view of the embodiment of the present invention. In FIG. 1, a rigid plate 27a is fixed to a right end of a vibration-isolating rubber 25 corresponding to a first elastic member, and a rigid plate 27b is fixed to a left end. A vertical rod 41 projecting to the right side of the rigid plate 27a and having an external thread threaded around the rigid plate 27a is screwed to the fan case 23 corresponding to the vibration member, and the rigid plate 27a is in contact with the fan case 23.
【００１９】一方、剛性板２７ｂの左側には、周囲に雄
ねじの螺刻された垂設棒２１が突出し、剛性板２７ｂ
は、被振動伝達部材に相当する背負枠２９の右側面に当
接している。防振ゴム２５は、防振ゴム２５の右端及び
左端より軸方向中心部に向かうに連れて曲線状に次第に
径を均等にすぼめて形成されている。On the other hand, on the left side of the rigid plate 27b, a vertically extending rod 21 having a male screw threaded on the periphery projects.
Is in contact with the right side surface of the backpack frame 29 corresponding to the vibration transmission member. The anti-vibration rubber 25 is formed such that its diameter is gradually reduced in a curved manner toward the center in the axial direction from the right end and the left end of the anti-vibration rubber 25.
【００２０】背負枠２９には、鉛直方向に長い貫通孔３
１が開けられている。そして、垂設棒２１は、この貫通
孔３１を貫通している。垂設棒２１と貫通孔３１の間に
は、中空円筒のカラー３３が挿入されている。カラー３
３の一端は、剛性板２７ｂに当接している。但し、図示
しないが、貫通孔３１の内側に停止部を周設させて、こ
のカラー３３の一端を停止するようにしてもよい。停止
部は、貫通孔３１の内側を突設させることで形成しても
よいし、また背負枠２９の右側面に、貫通孔３１の開口
より狭い径を有する円形の開口が配設された板を固着す
るようにしてもよい。In the backpack frame 29, a vertically long through hole 3 is provided.
One is open. The hanging rod 21 passes through the through hole 31. A hollow cylindrical collar 33 is inserted between the vertical bar 21 and the through hole 31. Color 3
One end of 3 is in contact with the rigid plate 27b. However, although not shown, a stop may be provided around the inside of the through hole 31 to stop one end of the collar 33. The stop portion may be formed by projecting the inside of the through hole 31, or a plate provided with a circular opening having a diameter smaller than the opening of the through hole 31 on the right side surface of the backpack frame 29. May be fixed.
【００２１】カラー３３の他端は、背負枠２９の左側面
より所定長突設されている。カラー３３の他端には、平
座がね３５を介してボルト３７が配設されている。平座
がね３５とボルト３７は締付固定手段に相当する。平座
がね３５と背負枠２９の間には、第２の弾性部材に相当
する中空の防振ゴム板３９が介装されている。The other end of the collar 33 projects from the left side surface of the backpack frame 29 by a predetermined length. The other end of the collar 33 is provided with a bolt 37 via a flat seat 35. The flat seat girder 35 and the bolt 37 correspond to fastening means. A hollow vibration-proof rubber plate 39 corresponding to a second elastic member is interposed between the flat seat 35 and the backpack frame 29.
【００２２】次に、本発明の実施形態の作用を説明す
る。背負枠２９の右側面には防振ゴム２５が、また左側
面には防振ゴム板３９が配設され、ボルト３７により締
結される。即ち、防振ゴム２５と防振ゴム板３９は、振
動をサイン波に例えると図１中のｅ方向で示した方向の
プラス側とマイナス側の両振動に対し振動を抑制する方
向に寄与する。このため、ファンケース２３側で発生し
た振動は、背負枠２９に伝わり難い。Next, the operation of the embodiment of the present invention will be described. An anti-vibration rubber 25 is disposed on the right side of the backpack frame 29, and an anti-vibration rubber plate 39 is disposed on the left side of the backpack frame 29. That is, when the vibration is compared to a sine wave, the vibration-proof rubber 25 and the vibration-proof rubber plate 39 contribute to the direction of suppressing the vibration with respect to both the plus side and the minus side of the direction indicated by the direction e in FIG. . For this reason, the vibration generated on the fan case 23 side is not easily transmitted to the backpack frame 29.
【００２３】背負枠２９と平座がね３５間には、防振ゴ
ム板３９を配設する。この防振ゴム板３９の厚みは、カ
ラー３３による突設された長さに一致させれば製造が簡
単である。但し、非圧縮状態で、カラー３３の突設され
た長さ以上に防振ゴム板３９の厚みを厚くして配設する
ことも可能である。この場合、ボルト３７は、圧縮後に
防振ゴム板３９が弾性力の残る程度に締結する必要があ
る。そして、平座がね３５はカラー３３の他端に当接さ
せる。An anti-vibration rubber plate 39 is disposed between the backpack frame 29 and the flat seat 35. The manufacturing is simple if the thickness of the vibration-proof rubber plate 39 is made to correspond to the length of the collar 33 projecting therefrom. However, in a non-compressed state, it is also possible to arrange the vibration-proof rubber plate 39 so that the thickness of the vibration-proof rubber plate 39 is thicker than the protruding length of the collar 33. In this case, it is necessary to fasten the bolt 37 to such an extent that the vibration-proof rubber plate 39 remains elastic after compression. The flat seat 35 is brought into contact with the other end of the collar 33.
【００２４】また、背負枠２９に鉛直方向に長い貫通孔
３１を配設したことで、図１中に示すように締結方向と
直角の方向ｆへの揺動が可能で、ｆ方向の振動を低減可
能である。貫通孔３１の幅は狭いので、平座がね３５及
びボルト３７による締結に支障を生ずることはない。本
実施形態では、鉛直方向ｆへの振動を抑制したいため、
長孔の方向を鉛直方向ｆとした。このように、長孔の方
向を低減させたい振動の方向に対し開けることで、主要
な振動を効率よく吸収出来る。Further, by arranging the vertically long through-hole 31 in the backpack frame 29, it is possible to swing in the direction f perpendicular to the fastening direction as shown in FIG. It can be reduced. Since the width of the through-hole 31 is small, there is no problem in fastening by the flat seat 35 and the bolt 37. In the present embodiment, in order to suppress vibration in the vertical direction f,
The direction of the long hole was the vertical direction f. As described above, the main vibration can be efficiently absorbed by opening the long hole in the direction of the vibration to be reduced.
【００２５】防振ゴム２５に曲線状のすぼみを形成した
ことで、防振ゴム２５を伝わった振動は曲線状に空気と
面する開放端２５ａに衝突することになる。この開放端
２５ａにより、振動は自由方向に散逸若しくは反射され
る。従って、防振ゴム２５を経て伝達される振動量は少
なくなる。以上により、ファンケース２３側より背負枠
２９に振動のより伝わり難い構造とすることが出来る。By forming a curved depression in the vibration isolating rubber 25, the vibration transmitted through the vibration isolating rubber 25 collides with the open end 25a facing the air in a curved shape. The vibration is dissipated or reflected in the free direction by the open end 25a. Therefore, the amount of vibration transmitted through the vibration isolating rubber 25 is reduced. As described above, it is possible to provide a structure in which vibration is hardly transmitted to the backpack frame 29 from the fan case 23 side.
【００２６】次に、本発明の適用例を説明する。図３に
本発明を適用したエンジンブロワーの側面図を示す。ま
た、図４にはこのエンジンブロワーの背面図を示す。図
３において、エンジン５１によりブロワー５３が回転駆
動される。ブロワー５３は、ファンケース２３内に収納
されている。このブロワー５３により起こされた風は、
ホース５５より吐出され、落ち葉等の清掃用に利用され
る。Next, an application example of the present invention will be described. FIG. 3 shows a side view of an engine blower to which the present invention is applied. FIG. 4 shows a rear view of the engine blower. In FIG. 3, the blower 53 is driven to rotate by the engine 51. The blower 53 is housed in the fan case 23. The wind generated by this blower 53
It is discharged from the hose 55 and used for cleaning fallen leaves and the like.
【００２７】背負枠２９はＬ字状に形成され、エンジン
５１及びブロワー５３は、背負枠２９の底面に載置固定
されている。背負枠２９の背当部分には、ビニール等の
背当部材５７が配設されている。背負枠２９の頂部２９
ａと底面前部２９ｂ間には背負バンド５９が取り付けら
れている。ファンケース２３と背負枠２９間には本発明
の実施形態である防振ゴム２５及び防振ゴム板３９等が
左右に一対配設されている。The backpack frame 29 is formed in an L-shape, and the engine 51 and the blower 53 are mounted and fixed on the bottom surface of the backpack frame 29. A backrest member 57 made of vinyl or the like is provided on a backrest portion of the backpack frame 29. Top 29 of backpack frame 29
A backpack band 59 is attached between the front surface 29a and the bottom front portion 29b. A pair of anti-vibration rubbers 25 and anti-vibration rubber plates 39 according to the embodiment of the present invention are disposed on the left and right between the fan case 23 and the backpack frame 29.
【００２８】このことにより、エンジン５１やブロワー
５３で発生した振動がファンケース２３より背負枠２９
に伝わり難い。このため、作業者に与える振動を小さく
抑えることが出来る。As a result, vibrations generated by the engine 51 and the blower 53 are transmitted from the fan case 23 to the backpack frame 29.
It is hard to reach. For this reason, the vibration given to the operator can be suppressed to a small level.
【００２９】[0029]
【発明の効果】以上説明したように本発明によれば、被
振動伝達部材（２９）を両側から第１の弾性部材（２
５）と第２の弾性部材（３９）で挟み、かつ第１の弾性
部材（２５）に曲線状のすぼみを配設したので、振動部
材（２３）より被振動伝達部材（２９）に伝達される振
動量は少なくなる。As described above, according to the present invention, the vibration transmitting member (29) is connected to the first elastic member (2) from both sides.
5) is sandwiched between the second elastic member (39) and the first elastic member (25) is provided with a curved depression, so that the vibration is transmitted from the vibration member (23) to the vibration transmission member (29). The amount of vibration is reduced.
【００３０】また、貫通孔（３１）を長孔とし、長孔の
方向を低減したい振動の方向と一致させたので、振動で
垂設棒（２１）は長孔の方向に揺動可能となり、振動は
第２の弾性部材（３９）により効率良く吸収される。Further, since the through hole (31) is formed as a long hole and the direction of the long hole is made to coincide with the direction of the vibration to be reduced, the vertical rod (21) can swing in the direction of the long hole by the vibration. The vibration is efficiently absorbed by the second elastic member (39).
【図１】 本発明の実施形態の側面図FIG. 1 is a side view of an embodiment of the present invention.
【図２】 本発明の実施形態の正面図FIG. 2 is a front view of the embodiment of the present invention.
【図３】 本発明を適用したエンジンブロワーの側面図FIG. 3 is a side view of an engine blower to which the present invention is applied.
【図４】 本発明を適用したエンジンブロワーの背面図FIG. 4 is a rear view of an engine blower to which the present invention is applied.
【図５】 従来の防振構造の一例FIG. 5 shows an example of a conventional anti-vibration structure.
２１、４１ 垂設棒 ２３ ファンケース ２５ 防振ゴム ２９ 背負枠 ３１ 貫通孔 ３３ カラー ３７ ボルト ３９ 防振ゴム板 21, 41 Hanging rod 23 Fan case 25 Anti-vibration rubber 29 Backpack frame 31 Through hole 33 Collar 37 Bolt 39 Anti-vibration rubber plate
Claims (3)
３）に一端面が固着若しくは螺着された第１の弾性部材
（２５）と、該第１の弾性部材（２５）の他端面に一端
面が当接され、貫通孔（３１）が開けられる被振動伝達
部材（２９）と、該被振動伝達部材（２９）の前記貫通
孔（３１）に挿通され、一端が前記第１の弾性部材（２
５）の他端面又は前記被振動伝達部材（２９）の一端面
側の前記貫通孔（３１）内側に周設された停止部に当接
され、他端が前記被振動伝達部材（２９）の他端面より
所定長突設された中空のカラー（３３）と、該カラー
（３３）に貫通され、一端面が前記被振動伝達部材（２
９）の他端面に当接した第２の弾性部材（３９）と、前
記第１の弾性部材（２５）の他端面より突出し、前記貫
通孔（３１）及び前記カラー（３３）を貫通する垂設棒
（２１）と、該垂設棒（２１）に案内され、前記第２の
弾性部材（３９）の他端面及び／又は前記カラー（３
３）の他端を締め付け固定する締付固定手段（３７）と
を備え、前記第１の弾性部材（２５）は、前記第１の弾
性部材（２５）の前記一端面及び前記他端面より軸方向
中心部に向かうに連れて曲線状に次第に径をすぼめたこ
とを特徴とする防振構造。A vibration member (23) and said vibration member (2)
A first elastic member (25) having one end surface fixed or screwed to 3), and one end surface is in contact with the other end surface of the first elastic member (25), and a through hole (31) is opened. The vibration transmission member (29) is inserted into the through hole (31) of the vibration transmission member (29), and one end of the vibration transmission member (29) is connected to the first elastic member (2).
5) or a stop provided around the inside of the through hole (31) on one end surface side of the vibration transmission member (29), and the other end of the vibration transmission member (29). A hollow collar (33) protruding from the other end surface by a predetermined length; and a hollow collar (33) penetrated by the collar (33) and one end surface of the collar member (2).
A second elastic member (39) in contact with the other end surface of the first elastic member (25), and a vertical protrusion protruding from the other end surface of the first elastic member (25) and penetrating the through hole (31) and the collar (33). A second rod (21) and the other end face of the second elastic member (39) and / or the collar (3) guided by the vertical rod (21).
3) a tightening and fixing means (37) for tightening and fixing the other end of the first elastic member (25), wherein the first elastic member (25) is more axially connected to the one end surface and the other end surface of the first elastic member (25). An anti-vibration structure characterized in that the diameter gradually decreases in a curved shape toward the center of the direction.
３）に一端面が固着若しくは螺着された第１の弾性部材
（２５）と、該第１の弾性部材（２５）の他端面に一端
面が当接され、貫通孔（３１）が開けられる被振動伝達
部材（２９）と、該被振動伝達部材（２９）の前記貫通
孔（３１）に挿通され、一端が前記第１の弾性部材（２
５）の他端面又は前記被振動伝達部材（２９）の一端面
側の前記貫通孔（３１）内側に周設された停止部に当接
され、他端が前記被振動伝達部材（２９）の他端面より
所定長突設された中空のカラー（３３）と、該カラー
（３３）に貫通され、一端面が前記被振動伝達部材（２
９）の他端面に当接した第２の弾性部材（３９）と、前
記第１の弾性部材（２５）の他端面より突出し、前記貫
通孔（３１）及び前記カラー（３３）を貫通する垂設棒
（２１）と、該垂設棒（２１）に案内され、前記第２の
弾性部材（３９）の他端面及び／又は前記カラー（３
３）の他端を締め付け固定する締付固定手段（３７）と
を備え、前記貫通孔（３１）は長孔とし、長孔の方向を
低減したい振動の方向と一致させたことを特徴とする防
振構造。2. A vibration member (23) and said vibration member (2).
A first elastic member (25) having one end surface fixed or screwed to 3), and one end surface is in contact with the other end surface of the first elastic member (25), and a through hole (31) is opened. The vibration transmission member (29) is inserted into the through hole (31) of the vibration transmission member (29), and one end of the vibration transmission member (29) is connected to the first elastic member (2).
5) or a stop provided around the inside of the through hole (31) on one end surface side of the vibration transmission member (29), and the other end of the vibration transmission member (29). A hollow collar (33) protruding from the other end surface by a predetermined length; and a hollow collar (33) penetrated by the collar (33) and one end surface of the collar member (2).
A second elastic member (39) in contact with the other end surface of the first elastic member (25), and a vertical protrusion protruding from the other end surface of the first elastic member (25) and penetrating the through hole (31) and the collar (33). A second rod (21) and the other end face of the second elastic member (39) and / or the collar (3) guided by the vertical rod (21).
3) fastening means (37) for fastening and fixing the other end, wherein the through hole (31) is a long hole, and the direction of the long hole matches the direction of vibration to be reduced. Anti-vibration structure.
１の弾性部材（２５）の前記一端面及び前記他端面より
軸方向中心部に向かうに連れて曲線状に次第に径をすぼ
めたことを特徴とする請求項２記載の防振構造。3. The first elastic member (25) gradually decreases in diameter in a curved shape from the one end surface and the other end surface of the first elastic member (25) toward the center in the axial direction. The anti-vibration structure according to claim 2, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06266999A JP3732036B2 (en) | 1999-03-10 | 1999-03-10 | Anti-vibration structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06266999A JP3732036B2 (en) | 1999-03-10 | 1999-03-10 | Anti-vibration structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000257672A true JP2000257672A (en) | 2000-09-19 |
| JP3732036B2 JP3732036B2 (en) | 2006-01-05 |
Family
ID=13206943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06266999A Expired - Lifetime JP3732036B2 (en) | 1999-03-10 | 1999-03-10 | Anti-vibration structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3732036B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121222A (en) * | 2006-11-09 | 2008-05-29 | Husqvarna Zenoah Co Ltd | Engine blower |
| KR102041955B1 (en) * | 2018-09-13 | 2019-11-07 | 린나이코리아 주식회사 | Wall fixed equipment for wall-mounted appliances |
-
1999
- 1999-03-10 JP JP06266999A patent/JP3732036B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008121222A (en) * | 2006-11-09 | 2008-05-29 | Husqvarna Zenoah Co Ltd | Engine blower |
| KR102041955B1 (en) * | 2018-09-13 | 2019-11-07 | 린나이코리아 주식회사 | Wall fixed equipment for wall-mounted appliances |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3732036B2 (en) | 2006-01-05 |
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