JP2006212121A - Bumper device of automotive vacuum cleaner - Google Patents

Bumper device of automotive vacuum cleaner Download PDF

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JP2006212121A
JP2006212121A JP2005026142A JP2005026142A JP2006212121A JP 2006212121 A JP2006212121 A JP 2006212121A JP 2005026142 A JP2005026142 A JP 2005026142A JP 2005026142 A JP2005026142 A JP 2005026142A JP 2006212121 A JP2006212121 A JP 2006212121A
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bumper member
bumper
damper
self
housing
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JP2005026142A
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Kazuya Sudo
一弥 須藤
Naoya Uehigashi
直也 上東
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Funai Electric Co Ltd
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Funai Electric Co Ltd
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Priority to JP2005026142A priority Critical patent/JP2006212121A/en
Priority to US11/345,601 priority patent/US20060191096A1/en
Publication of JP2006212121A publication Critical patent/JP2006212121A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an automotive vacuum cleaner, in which the shock is absorbed when the vacuum cleaner bumps against obstacles such as an indoor wall surface, without increasing the number of sensor elements incorporated in a bumper member, or without adding large-scale members such as springs, a shock absorber or the like. <P>SOLUTION: A bumper member 10, a plastic damper 4 which is arranged in the space between a rotary brush 2 and an external corner 11 above the rotary brush 2 and a resin hinge section 5 which brings an end of the bumper member 10 in continuity with the damper 4, to displace it inward and outward are incorporated. A sensor element 12 for detecting obstacles existing ahead in the traveling direction is provided just in the bumper member 10 among the bumper member 10 and the damper 4, and the sensor elements are not prepared in the damper 4. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、自走型掃除機のバンパー装置に関する。特に、前部にバンパー部材を備えている自走型掃除機において、上記バンパー部材を挟む左右両側部分が室内壁面などの障害物に当たったときの衝撃を緩和するための対策を講じている自走型掃除機のバンパー装置に関する。   The present invention relates to a bumper device for a self-propelled cleaner. In particular, in a self-propelled cleaner equipped with a bumper member at the front, self-propelled vacuum cleaners that take measures to mitigate the impact when the left and right side portions sandwiching the bumper member hit an obstacle such as an indoor wall surface. The present invention relates to a bumper device for a traveling vacuum cleaner.

図６は従来のバンパー部材１０を装備する自走型掃除機の概略全体斜視図、図７は同掃除機のバンパー部材１０の取付箇所を示した平面図、図８は従来のバンパー部材１０の概略斜視図である。   6 is a schematic overall perspective view of a self-propelled cleaner equipped with a conventional bumper member 10, FIG. 7 is a plan view showing an installation location of the bumper member 10 of the cleaner, and FIG. It is a schematic perspective view.

この掃除機Ａは、自走しながら床面清掃を行うのに必要な諸機構、たとえば塵埃吸込口やそれにつながる塵埃収容袋の収容室、吸込みファンとその駆動用モータ、排気口、走行駆動モータといった機構部品を備えているほか、図６又は図７のように、その筐体１の前側左右に出隅部１１，１１が設けられ、それらの出隅部１１，１１の下側に回転ブラシ２，２が装備されていてこれらの回転ブラシ２，２が上記出隅部１１，１１から下向きに突き出た回転軸２１，２１に連結されている。また、左右の回転ブラシ２，２の相互間に配備されたバンパー部材１０に障害物を検出するためのセンサー要素１２…が備わっていて、そのバンパー部材１０は筐体１に取り付けられている。さらに、筐体１の底板部の複数箇所に走行輪３などが取り付けられている。この掃除機は、走行輪３の転動を通じて床面上で自走し、その走行中に吸入した塵埃が塵埃収容袋に捕集され、回転ブラシ２による床面の清掃や室内入隅部分の清掃などが行われる。また、自走方向や自走速度などは図示していない制御手段の作動によって制御される。ここで、図８のように、バンパー部材１０は横長に形成された樹脂一体成形体でなり、掃除機Ａの自走中にその筐体１の前部が障害物に強く衝突したりすることを防ぐ機能を備えている。   This vacuum cleaner A has various mechanisms necessary for cleaning the floor surface while running on its own, such as a dust suction port, a dust storage bag storage chamber connected thereto, a suction fan and its drive motor, an exhaust port, and a travel drive motor. 6 and FIG. 7, as shown in FIG. 6 or FIG. 7, protruding corners 11, 11 are provided on the front left and right sides of the housing 1, and a rotating brush is provided below these protruding corners 11, 11. The rotary brushes 2 and 2 are connected to rotary shafts 21 and 21 protruding downward from the protruding corners 11 and 11. The bumper member 10 disposed between the left and right rotating brushes 2 and 2 is provided with sensor elements 12 for detecting an obstacle, and the bumper member 10 is attached to the housing 1. Further, traveling wheels 3 and the like are attached to a plurality of locations on the bottom plate portion of the housing 1. This vacuum cleaner is self-propelled on the floor surface through the rolling of the traveling wheel 3, and the dust sucked during the traveling is collected in the dust container bag, and the floor surface is cleaned by the rotating brush 2 and the interior corner portion is Cleaning is performed. Further, the self-running direction and the self-running speed are controlled by the operation of a control means (not shown). Here, as shown in FIG. 8, the bumper member 10 is formed of a horizontally-integrated resin-molded body, and the front portion of the housing 1 strongly collides with an obstacle while the cleaner A is self-propelled. It has a function to prevent.

一方、無人搬送車にバンパー装置を取り付けて衝撃を吸収させること（たとえば特許文献１参照）、自動車車体に衝撃吸収バンパー部材を取り付けること（たとえば特許文献２参照）などが従来より知られている。このうち、特許文献１に記載されているバンパー装置は、車体にカムやばねを介してバンパー部材本体を取り付けてあり、そのバンパー部材本体に加わる衝撃がばねの変形によって吸収されるようになっている。また、特許文献２に記載されているバンパー装置でも、車体フレームにショックアブソーバを介してバンパー部材を取り付けてあり、バンパー部材に加わる衝撃がショックアブソーバの機能によって吸収されるようになっている。また、特許文献１に記載されているバンパー部材本体及び特許文献２に記載されているバンパー部材は、いずれも、車体の前部に配備される部分と車体の前側左右のコーナ部を覆う部分とを略同一幅に形成して一体に曲り形状に連設したものであって、それらのバンパー部材本体やバンパー部材自体には緩衝作用を発揮するような対策が講じられていない。
特開平５−２０１２９６号公報 特開平１１−４８８８３号公報 On the other hand, attaching a bumper device to an automatic guided vehicle to absorb an impact (see, for example, Patent Document 1), attaching an impact absorbing bumper member to an automobile body (see, for example, Patent Document 2), and the like are conventionally known. Among these, the bumper device described in Patent Document 1 has a bumper member main body attached to the vehicle body via a cam or a spring, and an impact applied to the bumper member main body is absorbed by the deformation of the spring. Yes. In the bumper device described in Patent Document 2, a bumper member is attached to the vehicle body frame via a shock absorber, and an impact applied to the bumper member is absorbed by the function of the shock absorber. Moreover, the bumper member main body described in Patent Document 1 and the bumper member described in Patent Document 2 are both a part arranged at the front part of the vehicle body and a part covering the front left and right corner parts of the vehicle body. The bumper member main body and the bumper member itself are not provided with a countermeasure for exhibiting a buffering action.
Japanese Patent Laid-Open No. 5-201296 JP 11-48883 A

図６又は図７を参照して説明した自走型掃除機Ａでは、バンパー部材１０が左右の回転ブラシ２，２の相互間だけに亘って配備されているに過ぎなかったので、筐体１の左右の出隅部１１，１１が室内壁面などに衝突するときの衝撃をバンパー部材１０によって緩和させることができなかった。   In the self-propelled cleaner A described with reference to FIG. 6 or FIG. 7, the bumper member 10 is only provided between the left and right rotating brushes 2 and 2. The bumper member 10 was not able to mitigate the impact when the left and right protruding corner portions 11, 11 collide with the wall surface of the room.

そこで、この点を改善するために、バンパー部材１０を左右に延長して筐体１の左右の出隅部の下側にバンパー部材１０の延長部分を位置させておくことが考えられるけれども、そのようにすると、そのバンパー部材の延長部分が室内壁面などの障害物に衝突したときの衝撃が、筐体に対する当該バンパー部材１０の取付箇所に直接的に伝わって両者の取付構造部分が損傷するおそれが生じる。   Therefore, in order to improve this point, it is conceivable to extend the bumper member 10 to the left and right and position the extended portion of the bumper member 10 below the left and right protruding corners of the housing 1. As a result, the impact when the extended portion of the bumper member collides with an obstacle such as an indoor wall surface is directly transmitted to the mounting location of the bumper member 10 with respect to the housing, and the mounting structure portion of both may be damaged. Occurs.

また、図６に示したように、バンパー部材１０には障害物を検出するためのセンサー要素１２を具備させてあり、自走時に前方の障害物をそれらのセンサー要素１２の作用によって検出することができるようにはなっているけれども、バンパー部材１０が左右の回転ブラシ２，２の相互間だけに亘って配備されているに過ぎなかったために、バンパー部材１０に具備させたセンサー要素１２だけでは走行方向斜め前方の障害物を確実に検出させることには無理がある。   Further, as shown in FIG. 6, the bumper member 10 is provided with a sensor element 12 for detecting an obstacle, and a front obstacle is detected by the action of the sensor element 12 during self-running. However, since the bumper member 10 is only provided between the left and right rotating brushes 2 and 2, the sensor element 12 provided in the bumper member 10 alone is used. It is impossible to reliably detect obstacles obliquely forward in the running direction.

この点に関し、バンパー部材１０に設けるセンサー要素の数を増やして走行方向斜め前方の障害物をも検出させ得るようにすることが可能であるけれども、そのようにすると、センサー要素の数が増大してコスト高になり、また、回転ブラシ２が室内入隅部分を移動することによってはじめてその入隅部分の清掃が可能になることを勘案すると、センサー要素により室内壁面を検出させて左右の出隅部１１，１１が室内壁面に衝突しないようにすることは適切でない。言い換えると、回転ブラシ２によって室内入隅部分を清掃させるためには、左右の出隅部１１，１１が室内壁面に接触する程度に当該掃除機Ａが室内壁面に近付くことが必要である。   In this regard, although it is possible to increase the number of sensor elements provided on the bumper member 10 so that obstacles obliquely forward in the traveling direction can be detected, the number of sensor elements increases as such. In consideration of the fact that the rotating brush 2 can move to the interior corner only after the rotary brush 2 moves in the interior corner, the sensor element detects the wall surface of the interior and detects the left and right corners. It is not appropriate to prevent the parts 11 and 11 from colliding with the indoor wall surface. In other words, in order to clean the interior corner portion with the rotating brush 2, it is necessary that the cleaner A approaches the interior wall surface to the extent that the left and right exit corner portions 11, 11 contact the interior wall surface.

一方、特許文献１に記載されているバンパー装置は無人倉庫などで用いられる無人搬送車に採用されているものであり、特許文献２に記載されているバンパー装置は、自動車に採用されているものであるため、図６などを参照して説明した室内清掃などに用いられる自走型掃除機Ａのバンパー装置に比べて大形でかつ高強度であることが要求される。そのため、特許文献１や特許文献２に記載されているバンパー装置の構造を自走型掃除機Ａのバンパー装置にそのまま適用して、筐体１の左右の出隅部１１，１１が室内壁面などに衝突するときの衝撃を緩和するという対策を講じることは実際上困難であり、仮にその構造をそのまま採用すると、上記掃除機Ａのバンパー装置のバンパー部材１０を筐体１にばね又はショックアブソーバで支えさせるという構造になるために、ばねやショックアブソーバが余分に必要になってコストが大幅に高くつくだけでなく、それらのばねやショックアブソーバの設置スペースが余分に必要になったり重量が重くなったりして、当該掃除機Ａが大形化重量化して室内清掃のための掃除機Ａに要求される軽量小形化を図りにくくなる。   On the other hand, the bumper device described in Patent Document 1 is used in an automated guided vehicle used in an unmanned warehouse, and the bumper device described in Patent Document 2 is used in an automobile. Therefore, it is required to have a large size and high strength compared to the bumper device of the self-propelled cleaner A used for the indoor cleaning described with reference to FIG. Therefore, the structure of the bumper device described in Patent Document 1 and Patent Document 2 is applied as it is to the bumper device of the self-propelled cleaner A, and the left and right protruding corners 11, 11 of the housing 1 are the interior wall surfaces and the like. In practice, it is difficult to take a measure to alleviate the impact at the time of collision. If the structure is adopted as it is, the bumper member 10 of the bumper device of the vacuum cleaner A is attached to the housing 1 with a spring or a shock absorber. Since the structure is supported, not only is it necessary to add extra springs and shock absorbers, which increases the cost, but also the installation space for those springs and shock absorbers becomes extra and heavy. In other words, the vacuum cleaner A is increased in size and weight, making it difficult to reduce the size and weight required for the cleaner A for indoor cleaning.

本発明は以上の状況の下でなされたものであり、バンパー部材に設けるセンサー要素の数を増やすことなく、しかも、ばねやショックアブソーバなどの大掛かりな部品を追加することなく、筐体の左右の出隅部が室内壁面などの障害物に衝突するときの衝撃を緩和することができ、しかも、バンパー部材と筐体との取付箇所にその衝撃が直接的に伝わって両者の取付構造部分が損傷するというおそれのない自走型掃除機のバンパー装置を提供することを目的とする。   The present invention has been made under the above circumstances, and without increasing the number of sensor elements provided on the bumper member, and without adding large parts such as springs and shock absorbers, The impact when the protruding corner collides with an obstacle such as an indoor wall surface can be mitigated, and the impact is directly transmitted to the mounting location of the bumper member and the housing, damaging the mounting structure of both It is an object of the present invention to provide a bumper device for a self-propelled vacuum cleaner that does not have the risk of doing so.

本発明に係る自走型掃除機のバンパー装置は、筐体の前側左右の出隅部の下側に床面に接して回転する回転ブラシが装備され、それら左右の回転ブラシの相互間に樹脂成形体でなるバンパー部材が装備されている。そして、上記回転ブラシとその回転ブラシの上側の上記出隅部との対向空間に配備した樹脂製のダンパーを、上記バンパー部材の端部に、当該ダンパーを内外方向に変位させる弾性を備える樹脂ヒンジ部を介して片持ち状に一体成形してある。   The bumper device of the self-propelled cleaner according to the present invention is equipped with a rotating brush that rotates in contact with the floor surface below the front left and right protruding corners of the housing, and a resin between the left and right rotating brushes. A bumper member made of a molded body is equipped. A resin hinge provided in an opposing space between the rotary brush and the protruding corner on the upper side of the rotary brush has a resin hinge provided with elasticity to displace the damper inward and outward at an end of the bumper member. It is integrally formed in a cantilever shape via the part.

この構成であれば、ダンパーが障害物に衝突したときに樹脂ヒンジ部が弾性変形してそのときの衝撃が吸収されるので、バンパー部材に衝撃が直接的に伝わることがなくなるだけでなく、筐体の出隅部が障害物に当たるときの衝撃も緩和される。また、バンパー部材に樹脂ヒンジ部を介してダンパーを一体成形するだけであるにもかかわらず、バンパー部材で走行方向前方の障害物を検出させ、かつ、ダンパーで走行方向斜め前方の障害物を検出させることができるために、バンパー部材に設けるセンサー要素の数を増やすことなく、しかも、ばねやショックアブソーバなどの大掛かりな部品を追加することなく、走行方向前方及び斜め前方の障害物の有無の検出幅を拡大させることが可能になる。加えて、ダンパーは、筐体の左右の入隅部とその入隅部の下側の回転ブラシとの対向空間に配備されてバンパー部材に樹脂ヒンジ部を介して連設されているので、図６などを参照して説明したようなダンパーを備えていない自走型掃除機に対してその筐体の形状変更を行うことなくダンパーを追加することが容易に可能になって、それだけ安価に本発明の自走型掃除機を提供することが可能になるという利点もある。   With this configuration, when the damper collides with an obstacle, the resin hinge portion is elastically deformed and the impact is absorbed, so that not only the impact is not directly transmitted to the bumper member, but also the housing. Impact is also mitigated when the body corners hit an obstacle. In addition, the bumper member can detect obstacles ahead in the running direction and the damper can detect obstacles diagonally forward in the running direction, even though the damper is simply formed integrally with the bumper member via the resin hinge. Therefore, it is possible to detect the presence or absence of obstacles in the forward and diagonal directions without increasing the number of sensor elements provided on the bumper member, and without adding large parts such as springs and shock absorbers. The width can be increased. In addition, since the damper is disposed in a space facing the left and right corners of the housing and the rotating brush below the corner and is connected to the bumper member via the resin hinge portion, It is possible to easily add a damper to a self-propelled cleaner that does not have a damper as described with reference to 6 or the like without changing the shape of the casing, and the book can be made inexpensively. There is also an advantage that it becomes possible to provide the self-propelled cleaner of the invention.

本発明において、上記ダンパーは、その内面が上記出隅部から下向きに突き出た回転ブラシの回転軸を外側から囲い込む湾曲形状に形作られていると共に、その外面が上記出隅部の外面に沿う形状に形作られて上記出隅部の外面よりも外方に位置している、という構成を採用することが望ましい。これによれば、回転ブラシの回転軸によってダンパーの変位がじゃまされるという事態が起こらなくなってダンパーによる衝撃緩和作用が円滑にかつ確実に発揮されるようになるだけでなく、ダンパーの外面形状が筐体の出隅部の外面形状によく馴染んでダンパーを追加したことによるデザイン面での違和感を無くすることが可能になる。   In the present invention, the damper is formed in a curved shape surrounding the rotation shaft of the rotating brush whose inner surface protrudes downward from the protruding corner from the outside, and the outer surface thereof is along the outer surface of the protruding corner. It is desirable to adopt a configuration that is formed in a shape and is located outward from the outer surface of the protruding corner. This not only prevents the damper from being disturbed by the rotating shaft of the rotating brush, and the shock mitigating action by the damper can be exhibited smoothly and reliably, but the outer shape of the damper is also improved. It becomes possible to eliminate a sense of incongruity in design due to the addition of a damper that is well adapted to the outer shape of the outer corner of the housing.

本発明では、上記バンパー部材の横方向中央部が、上記筐体に水平揺動可能及び前後移動可能に取り付けられているという構成を採用することが可能であり、この場合には、上記バンパー部材の横方向中央部と上記筐体との取付部では、筐体側に設けられた丸軸にバンパー部材からその内側に突出された支持体の開口部が水平揺動可能及び前後移動可能に嵌合されているという構成を採用することが望ましい。これによれば、バンパー部材の横方向中央部と筐体との取付部を支点としてバンパー部材が水平揺動可能及び前後移動可能になっているので、バンパー部材が障害物に当たったときにそのバンパー部材が水平揺動又は前後移動してそのときの衝撃が緩和される。また、ダンパーが障害物に当たったときには、そのダンパーとバンパー部材とを連結している上記樹脂ヒンジ部が変形してそのときの衝撃を吸収緩和するので、バンパー部材や上記取付部に衝撃が直接的に伝わることがなくなる。したがって、上記取付部を、筐体側の丸軸にバンパー部材からその内側に突出された支持体の開口部を嵌合するだけの簡単な構成としてあるにもかかわらず、その取付部が衝撃を受けて損壊するという事態がなくなる。   In the present invention, it is possible to adopt a configuration in which the central portion in the lateral direction of the bumper member is attached to the casing so as to be horizontally swingable and movable back and forth. In this case, the bumper member In the mounting portion between the lateral center of the housing and the housing, the opening of the support body protruding inward from the bumper member is fitted to a round shaft provided on the housing side so as to be horizontally swingable and movable back and forth. It is desirable to adopt a configuration that is used. According to this, since the bumper member can be horizontally swung and moved back and forth with the mounting portion between the lateral central portion of the bumper member and the housing as a fulcrum, when the bumper member hits an obstacle, The bumper member swings horizontally or moves back and forth, and the impact at that time is alleviated. Further, when the damper hits an obstacle, the resin hinge part connecting the damper and the bumper member is deformed and absorbs and reduces the shock at that time, so that the shock is directly applied to the bumper member and the mounting part. Will not be transmitted. Therefore, even though the mounting portion has a simple configuration in which the opening portion of the support body protruding inward from the bumper member is fitted to the round shaft on the housing side, the mounting portion receives an impact. The situation of being damaged is lost.

本発明では、上記バンパー部材が常時前方に付勢されていることが望ましい。これによれば、バンパー部材に加わっている付勢力によっても、バンパー部材やダンパーが障害物に当たったときの衝撃が吸収されるようになる。   In the present invention, it is desirable that the bumper member is always urged forward. According to this, even when the bumper member or the damper hits the obstacle, the impact is applied by the urging force applied to the bumper member.

本発明に係る自走型掃除機のバンパー装置は、筐体の前側左右の出隅部の下側に床面に接して回転する回転ブラシが装備され、それら左右の回転ブラシの相互間に樹脂成形体でなるバンパー部材が装備されている自走型掃除機において、上記回転ブラシとその回転ブラシの上側の上記出隅部との対向空間に配備された樹脂製のダンパーと、常時前方に弾発付勢された上記バンパー部材の端部及び上記ダンパーを連続させてそのダンパーを内外方向に変位させる弾性を備える樹脂ヒンジ部とを備え、上記ダンパーは、その内面が上記出隅部から下向きに突き出た回転ブラシの回転軸を外側から囲い込む湾曲形状に形作られ、かつ、その外面が上記出隅部の外面に沿う形状に形作られて上記出隅部の外面よりも外方に位置していると共に、筐体側に設けられた丸軸にバンパー部材の横方向中央部からその内側に突出された支持体の開口部を水平揺動可能及び前後移動可能に嵌合することによってそのバンパー部材が上記筐体に水平揺動可能及び前後移動可能に取り付けられ、上記バンパー部材と上記ダンパーとのうちのバンパー部材だけに、走行方向前方に存在する障害物を検出するためのセンサー要素が設けられている、という構成を採用することによっていっそう具体化される。この発明の作用については後述する実施形態を参照して詳細に説明する。   The bumper device of the self-propelled cleaner according to the present invention is equipped with a rotating brush that rotates in contact with the floor surface below the front left and right protruding corners of the housing, and a resin between the left and right rotating brushes. In a self-propelled cleaner equipped with a bumper member made of a molded body, a resin damper disposed in a space facing the rotating brush and the protruding corner on the upper side of the rotating brush; An end portion of the urged bumper member and a resin hinge portion having elasticity that continuously displaces the damper inward and outward, and the damper has an inner surface facing downward from the protruding corner portion. It is formed in a curved shape that encloses the rotating shaft of the protruding rotating brush from the outside, and its outer surface is formed in a shape that follows the outer surface of the protruding corner portion, and is positioned outward from the outer surface of the protruding corner portion. And the housing side By fitting the opening of the support projecting inward from the lateral central portion of the bumper member to the provided round shaft so that the bumper member can swing horizontally and move back and forth, the bumper member horizontally swings on the casing. Adopted a structure that is mounted so that it can move and move back and forth, and only the bumper member of the bumper member and the damper is provided with a sensor element for detecting an obstacle existing in front of the traveling direction. To make it more concrete. The operation of the present invention will be described in detail with reference to embodiments described later.

本発明によれば、筐体の前側にバンパー部材が設けられている自走型掃除機において、そのバンパー部材の端部に樹脂ヒンジ部を介してダンパーを連続させるという簡単な構成を追加するだけで、バンパー部材に設けるセンサー要素の数を増やすことなく、しかも、ばねやショックアブソーバなどの大掛かりな部品を追加することなく、筐体の左右の出隅部が室内壁面などの障害物に衝突するときの衝撃を緩和することができ、しかも、バンパー部材と筐体との取付箇所にその衝撃が直接的に伝わって両者の取付構造部分が損傷するというおそれがなくなるという卓越した効果が奏される。また、筐体の前側にバンパー部材が設けられている自走型掃除機の筐体の形状を変更することなく、上記ダンパーを追加することができるという効果も奏される。したがって、軽量化小形化が要求される自走型掃除機のバンパー装置に適し、そのようなバンパー装置を安価に提供することができるようになるだけでなく、バンパー部材やダンパー、ひいてはバンパー部材と筐体との取付部が損壊しにくくなるために、ユーザにとっては持ち運びやすくて使い勝手に優れるという利点を得られるようになる。   According to the present invention, in the self-propelled cleaner provided with a bumper member on the front side of the housing, only a simple configuration in which the damper is continuously connected to the end portion of the bumper member via the resin hinge portion is added. Thus, without increasing the number of sensor elements provided on the bumper member, and without adding large parts such as springs and shock absorbers, the left and right protruding corners of the housing collide with obstacles such as the indoor wall surface. The impact can be mitigated, and there is an excellent effect that the impact is directly transmitted to the mounting location between the bumper member and the housing, and the mounting structure portion of both is not damaged. . Moreover, the effect that the said damper can be added without changing the shape of the housing | casing of the self-propelled cleaner with which the bumper member is provided in the front side of the housing | casing is also show | played. Therefore, it is suitable for a bumper device of a self-propelled cleaner that requires a reduction in weight and size, and not only can such a bumper device be provided at low cost, but also a bumper member, a damper, and a bumper member. Since the attachment portion with the housing is less likely to be damaged, the user can obtain the advantage that it is easy to carry and is easy to use.

図１は本発明に係るバンパー装置を備えた自走型掃除機Ａの外観斜視図、図２は同掃除機の正面図、図３はバンパー部材１０の取付箇所の構造を示した概略平面図、図４はダンパー４と共に一体成形されたバンパー部材１０の概略斜視図、図５はバンパー部材１０の上下動規制ガイド１００を説明するための断面図である。   FIG. 1 is an external perspective view of a self-propelled cleaner A provided with a bumper device according to the present invention, FIG. 2 is a front view of the cleaner, and FIG. 3 is a schematic plan view showing a structure of a mounting location of a bumper member 10. 4 is a schematic perspective view of the bumper member 10 integrally formed with the damper 4, and FIG. 5 is a cross-sectional view for explaining the vertical movement regulating guide 100 of the bumper member 10.

図１又は図２に示した自走型掃除機Ａは、自走しながら床面清掃を行うのに必要な諸機構を備えているほか、その筐体１の前側左右に出隅部１１，１１が設けられ、それらの出隅部１１，１１の下側に回転ブラシ２，２が装備されていてこれらの回転ブラシ２，２が上記出隅部１１，１１から下向きに突き出た回転軸２１，２１に連結され、さらに、左右の回転ブラシ２，２の相互間に配備されたバンパー部材１０に障害物を検出するためのセンサー要素１２…が備わっているという点で、図６を参照して説明した自走型掃除機Ａと同様である。また、図３のように、筐体１の底板部の複数箇所に走行輪３などが取り付けられていて、走行輪３の転動を通じて床面上で自走し、その自走中に吸入した塵埃が塵埃収容袋に捕集され、回転ブラシ２による床面の清掃や室内入隅部分の清掃などが行われるという点や、自走方向や自走速度などが図示していない制御手段の作動によって制御されるという点でも、図６などを参照して説明した自走型掃除機Ａと同様である。   The self-propelled cleaner A shown in FIG. 1 or FIG. 2 includes various mechanisms necessary for cleaning the floor while self-propelled, and also includes the protruding corners 11 on the front left and right sides of the housing 1. 11 is provided, and rotating brushes 2 and 2 are mounted on the lower side of the projecting corners 11 and 11, and the rotating shafts 21 projecting downward from the projecting corners 11 and 11. , 21 and a bumper member 10 disposed between the left and right rotating brushes 2, 2 is provided with sensor elements 12 for detecting an obstacle, see FIG. This is the same as the self-propelled cleaner A described above. Further, as shown in FIG. 3, traveling wheels 3 and the like are attached to a plurality of locations on the bottom plate portion of the housing 1, and the vehicle travels on the floor surface through rolling of the traveling wheels 3, and sucks during the self-running. Dust is collected in the dust bag and the floor surface is cleaned by the rotating brush 2 and the interior corner is cleaned, and the control means whose self-running direction and self-running speed are not shown It is the same as the self-propelled cleaner A described with reference to FIG.

この実施形態では、バンパー部材１０の左右の端部に、センサー要素を備えていないダンパー４を追加して連設し、そのダンパー４を、図１又は図２のように筐体１の出隅部１１とその下側の回転ブラシ２との対向空間に配備している点などにおいて、図６などを参照して説明したものと相違している。この点を以下に説明する。   In this embodiment, a damper 4 not provided with a sensor element is additionally provided at the left and right ends of the bumper member 10, and the damper 4 is connected to the corner of the housing 1 as shown in FIG. 1 or FIG. It differs from what was demonstrated with reference to FIG. 6 etc. in the point etc. which are arrange | positioned in the opposing space of the part 11 and the rotating brush 2 of the lower side. This point will be described below.

図３又は図４のように、バンパー部材１０は横長に形成された樹脂一体成形体でなり、その左右の各端部に、樹脂ヒンジ部５を介してダンパー４が片持ち状に連続して一体成形されている。また、バンパー部材１０は筐体１の前面の湾曲形状に沿う湾曲形状に形成されており、併せて、ダンパー４はその外面４１の形状が筐体１の出隅部１１（図１参照）の外面形状に沿う湾曲形状に形成されていると共に、その外面４１が図２に見られるように出隅部１１の外面よりも外方に位置している。加えて、このダンパー４にあっては、図３のようにその内面４２が湾曲形状に形作られて回転ブラシ２の回転軸２１を外側から囲い込んでいる。このため、ダンパー４と回転軸２１との相互間に形成されるスペースによって、ダンパー４が樹脂ヒンジ部５を支点として図３矢印Ｍのように内外方向に回転軸２１と干渉することなく円滑に変位することが可能である。図４に明瞭に示したように、樹脂ヒンジ部５は薄肉に形成されていることによって樹脂に特有の弾性を発揮する。したがって、ダンパー４は、障害物に衝突したときのように外力を受けて図３に仮想線で示したように内側に変位したとしても、その外力が取り除かれたときには樹脂ヒンジ部５の弾性復元性によって図３に実線で示した初期位置に復帰する。なお、この実施形態では、ダンパー４が、筐体１の出隅部１１の下側で、その出隅部１１の前側から側方に亘って延び出ている。   As shown in FIG. 3 or FIG. 4, the bumper member 10 is a horizontally formed resin-integrated molded body, and the damper 4 is continuously connected in a cantilever manner to the left and right end portions via the resin hinge portion 5. It is integrally molded. In addition, the bumper member 10 is formed in a curved shape that follows the curved shape of the front surface of the housing 1. In addition, the damper 4 has a shape of the outer surface 41 of the protruding corner portion 11 (see FIG. 1) of the housing 1. It is formed in a curved shape along the outer surface shape, and its outer surface 41 is located outward from the outer surface of the protruding corner 11 as seen in FIG. In addition, in the damper 4, the inner surface 42 is formed in a curved shape as shown in FIG. 3 and surrounds the rotary shaft 21 of the rotary brush 2 from the outside. Therefore, the space formed between the damper 4 and the rotating shaft 21 allows the damper 4 to smoothly and without interfering with the rotating shaft 21 inward and outward as shown by the arrow M in FIG. It is possible to displace. As clearly shown in FIG. 4, the resin hinge portion 5 is formed thin so as to exhibit elasticity peculiar to the resin. Therefore, even if the damper 4 receives an external force such as when it collides with an obstacle and is displaced inward as shown by the phantom line in FIG. 3, when the external force is removed, the elastic restoration of the resin hinge portion 5 occurs. Depending on the nature, it returns to the initial position shown by the solid line in FIG. In this embodiment, the damper 4 extends from the front side of the protruding corner 11 to the side below the protruding corner 11 of the housing 1.

また、この実施形態では、図２に見られるように、ダンパー４の設置高さがバンパー部材１０の設置高さよりもやゝ低位になっている。これは、出隅部１１とその下側の回転ブラシ２との対向空間の高さ位置がバンパー部材１０の設置高さよりもやゝ低位にあるために、その対向空間の高さ位置にダンパー４の設置高さを合わせたためである。こうすることによって、図６などを参照して説明した自走型掃除機Ａの筐体１の形状を変更することなく、ダンパー４を追加することができた。なお、ダンパー４の設置高さをバンパー部材１０の設置高さよりもやゝ低位に定めてそのダンパー４を出隅部１１とその下側の回転ブラシ２との対向空間に無理なく配備するためには、図４によって判るように、バンパー部材１０と略同一幅に形成されてそのバンパー部材１０から水平方向に連設されている樹脂ヒンジ部５の下端にダンパー４を連設しておくとよい。   In this embodiment, as shown in FIG. 2, the installation height of the damper 4 is slightly lower than the installation height of the bumper member 10. This is because the height position of the facing space between the projecting corner portion 11 and the lower rotary brush 2 is slightly lower than the installation height of the bumper member 10, so that the damper 4 is positioned at the height position of the facing space. This is because the installation height is adjusted. By doing so, it was possible to add the damper 4 without changing the shape of the housing 1 of the self-propelled cleaner A described with reference to FIG. The installation height of the damper 4 is set to be slightly lower than the installation height of the bumper member 10 so that the damper 4 can be easily deployed in the facing space between the protruding corner portion 11 and the rotating brush 2 below. As shown in FIG. 4, the damper 4 may be connected to the lower end of the resin hinge portion 5 that is formed to have substantially the same width as the bumper member 10 and is provided continuously from the bumper member 10 in the horizontal direction. .

次に、図３、図４又は図５を参照してバンパー部材１０と筐体１との取付箇所の構造を説明する。   Next, referring to FIG. 3, FIG. 4, or FIG.

バンパー部材１０の横方向中央部にその内側に向けて板片状の支持体６が突出されていて、その支持体６に具備された開口７が、筐体１の底板部の横方向中央部に突設された丸軸８に遊嵌合されている。そして、開口７の口縁には山形のカム面７１が備わっていて、バンパー部材１０が前方へ押されてそのカム面７１が丸軸８に当接したときには、そのカム面７１の案内作用によってバンパー部材１０の横方向（左右方向）での位置が一箇所に定まるようになっている。また、開口７の前後幅は丸軸８の直径よりもやゝ広くなっていて、丸軸８が開口７内で前後方向に相対的に変位することのできる寸法分だけ、バンパー部材１０が前後移動可能となっている。したがって、バンパー部材１０は、筐体１に丸軸８及び支持体６を介して図３矢印Ｈで示した水平揺動が可能で、かつ、同図矢印Ｖで示した前後移動が可能に取り付けられている。   A plate-like support body 6 protrudes toward the inner side in the lateral direction of the bumper member 10, and the opening 7 provided in the support body 6 is formed in the lateral direction central part of the bottom plate part of the housing 1. Are loosely fitted to a round shaft 8 projecting from. The opening 7 is provided with a chevron-shaped cam surface 71, and when the bumper member 10 is pushed forward and the cam surface 71 comes into contact with the round shaft 8, the cam surface 71 is guided. The position of the bumper member 10 in the lateral direction (left-right direction) is determined in one place. Further, the front-rear width of the opening 7 is slightly larger than the diameter of the round shaft 8, and the bumper member 10 is moved back and forth by the dimension that the round shaft 8 can be relatively displaced in the front-rear direction within the opening 7. It is movable. Therefore, the bumper member 10 is attached to the housing 1 through the round shaft 8 and the support 6 so as to be able to swing horizontally as indicated by the arrow H in FIG. It has been.

さらに、バンパー部材１０には、上記支持体６を挟む両側に突出片９，９が備わり、これらの突出片９，９に、筐体１の底板部に取り付けられたねじりコイルばね９１の弾発付勢力が付与されている。そのため、バンパー部材１０がねじりコイルばね９１の弾発付勢力によって常時前方に向けて付勢され、しかも、そのバンパー部材１０の前方への飛出しが、上記丸軸８にカム面７１が当たることによって阻止されている。   Further, the bumper member 10 is provided with projecting pieces 9 and 9 on both sides of the support 6, and the projecting pieces 9 and 9 are provided with a resilient spring of a torsion coil spring 91 attached to the bottom plate portion of the housing 1. Energizing power is given. Therefore, the bumper member 10 is always urged forward by the elastic urging force of the torsion coil spring 91, and the bump surface of the bumper member 10 hits the round shaft 8 against the cam surface 71. Is blocked by.

また、図３に示したように、筐体１の底板部の左右２箇所にバンパー部材１０の上下変位幅と高さ位置を規制するための上下動規制ガイド１００が備わっている。この上下動規制ガイド１００は図５に示したように、バンパー部材１０に具備されている水平な板片部１０１が前後方向変位可能に嵌合された溝部１１０を備えていて、この溝部１１０の溝幅に見合う幅だけバンパー部材１０に上下方向ａの遊びが付与されている。   Further, as shown in FIG. 3, vertical movement restriction guides 100 for regulating the vertical displacement width and height position of the bumper member 10 are provided at two positions on the left and right sides of the bottom plate portion of the housing 1. As shown in FIG. 5, the vertical movement restricting guide 100 includes a groove 110 in which a horizontal plate piece 101 provided in the bumper member 10 is fitted so as to be displaceable in the front-rear direction. The play in the vertical direction a is given to the bumper member 10 by a width corresponding to the groove width.

以上のように構成されている自走型掃除機Ａの作用を次に説明する。   The operation of the self-propelled cleaner A configured as described above will be described next.

当該掃除機Ａが室内床面上を自走しているときに、バンパー部材１０に設けられているセンサー要素１２によって前方の障害物が検出された場合には、その検出信号に基づいて自走方向が変更され、掃除機Ａが障害物に衝突して自走不能に陥ることが回避される。   If the front obstacle is detected by the sensor element 12 provided on the bumper member 10 while the cleaner A is self-propelled on the indoor floor surface, it is self-propelled based on the detection signal. The direction is changed, and the vacuum cleaner A is prevented from colliding with an obstacle and becoming unable to run on its own.

一方、掃除機Ａがたとえば室内壁面に斜め方向から近付いて行き、センサー要素１２によってはその室内壁面が検出されない場合には、室内壁面に近い側のダンパー４が室内壁面に衝突するけれども、このような衝突が起こったときには、ダンパー４が樹脂ヒンジ部５を支点としてその弾性に抗して内側に変位する。そのため、樹脂ヒンジ部５の変形によって衝突の衝撃が吸収緩和され、その後に筐体１の出隅部１１が室内壁面に衝突してもその衝撃で出隅部１１にひび割れを生じたり室内壁面を傷付けたりすることが回避される。併せて、ダンパー４が室内壁面に衝突したときの衝撃がバンパー部材１０に直接的に伝わることがなく、さらに、バンパー部材１０と筐体１との取付箇所、すなわち丸軸８と支持体６の開口７との嵌合箇所によって構成される取付部Ｆにも直接的に伝わることがないので、バンパー部材１０やその取付部Ｆが衝撃で損壊するといった事態の起こるおそれもない。   On the other hand, when the vacuum cleaner A approaches the indoor wall surface from an oblique direction and the indoor wall surface is not detected by the sensor element 12, the damper 4 near the indoor wall surface collides with the indoor wall surface. When a serious collision occurs, the damper 4 is displaced inward against the elasticity with the resin hinge portion 5 as a fulcrum. For this reason, the impact of the collision is absorbed and relaxed by the deformation of the resin hinge portion 5, and even if the protruding corner portion 11 of the housing 1 subsequently collides with the indoor wall surface, the impact causes a crack in the protruding corner portion 11 or the indoor wall surface. Injuries are avoided. In addition, the impact when the damper 4 collides with the indoor wall surface is not directly transmitted to the bumper member 10, and further, the mounting location between the bumper member 10 and the housing 1, that is, the round shaft 8 and the support body 6. Since it is not directly transmitted to the mounting portion F constituted by the fitting portion with the opening 7, there is no possibility that the bumper member 10 or the mounting portion F is damaged by an impact.

本発明に係るバンパー装置を備えた自走型掃除機の外観斜視図である。It is an external appearance perspective view of the self-propelled cleaner provided with the bumper device concerning the present invention. 同掃除機の正面図である。It is a front view of the vacuum cleaner. バンパー部材の取付箇所の構造を示した概略平面図である。It is the schematic plan view which showed the structure of the attachment location of a bumper member. ダンパーと共に一体成形されたバンパー部材の概略斜視図である。It is a schematic perspective view of the bumper member integrally formed with the damper. バンパー部材の上下動規制ガイドを説明するための断面図である。It is sectional drawing for demonstrating the vertical movement control guide of a bumper member. 従来のバンパー部材を装備する自走型掃除機の概略全体斜視図である。It is a general | schematic whole perspective view of the self-propelled cleaner equipped with the conventional bumper member. 図６の掃除機のバンパー部材の取付箇所を示した平面図である。It is the top view which showed the attachment location of the bumper member of the cleaner of FIG. 従来のバンパー部材の概略斜視図である。It is a schematic perspective view of the conventional bumper member.

符号の説明Explanation of symbols

Ａ 自走型掃除機
２ 回転ブラシ
４ ダンパー
５ 樹脂ヒンジ部
８ 丸軸
６ 支持体
７ 開口部
１０ バンパー部材
１１ 出隅部
１２ センサー要素
２１ 回転軸
４１ ダンパーの外面
４２ ダンパーの内面 A Self-propelled vacuum cleaner 2 Rotating brush 4 Damper 5 Resin hinge 8 Round shaft 6 Support 7 Opening 10 Bumper member 11 Exit corner 12 Sensor element 21 Rotating shaft 41 Damper outer surface 42 Damper inner surface

Claims (6)

筐体の前側左右の出隅部の下側に床面に接して回転する回転ブラシが装備され、それら左右の回転ブラシの相互間に樹脂成形体でなるバンパー部材が装備されている自走型掃除機において、
上記回転ブラシとその回転ブラシの上側の上記出隅部との対向空間に配備された樹脂製のダンパーと、常時前方に弾発付勢された上記バンパー部材の端部及び上記ダンパーを連続させてそのダンパーを内外方向に変位させる弾性を備える樹脂ヒンジ部とを備え、
上記ダンパーは、その内面が上記出隅部から下向きに突き出た回転ブラシの回転軸を外側から囲い込む湾曲形状に形作られ、かつ、その外面が上記出隅部の外面に沿う形状に形作られて上記出隅部の外面よりも外方に位置していると共に、筐体側に設けられた丸軸にバンパー部材の横方向中央部からその内側に突出された支持体の開口部を水平揺動可能及び前後移動可能に嵌合することによってそのバンパー部材が上記筐体に水平揺動可能及び前後移動可能に取り付けられ、上記バンパー部材と上記ダンパーとのうちのバンパー部材だけに、走行方向前方に存在する障害物を検出するためのセンサー要素が設けられていることを特徴とする自走型掃除機のバンパー装置。 A self-propelled type equipped with a rotating brush that rotates in contact with the floor under the left and right protruding corners on the front side of the housing, and a bumper member made of a resin molded body between the left and right rotating brushes In the vacuum cleaner,
A resin damper disposed in a facing space between the rotating brush and the protruding corner on the upper side of the rotating brush, and an end portion of the bumper member and the damper that are always elastically biased forward are continuously provided. A resin hinge portion having elasticity that displaces the damper inward and outward,
The damper is formed in a curved shape that encloses the rotation shaft of the rotating brush whose inner surface protrudes downward from the protruding corner from the outside, and the outer surface is formed in a shape along the outer surface of the protruding corner. It is located outward from the outer surface of the protruding corner, and can horizontally swing the opening of the support projecting inward from the lateral center of the bumper member on the round shaft provided on the housing side And the bumper member is attached to the casing so as to be horizontally swingable and movable back and forth by being fitted so as to be movable back and forth, and exists only in the bumper member of the bumper member and the damper in the traveling direction. A bumper device for a self-propelled cleaner, wherein a sensor element for detecting an obstacle is provided. 筐体の前側左右の出隅部の下側に床面に接して回転する回転ブラシが装備され、それら左右の回転ブラシの相互間に樹脂成形体でなるバンパー部材が装備されている自走型掃除機において、
上記回転ブラシとその回転ブラシの上側の上記出隅部との対向空間に配備した樹脂製のダンパーを、上記バンパー部材の端部に、当該ダンパーを内外方向に変位させる弾性を備える樹脂ヒンジ部を介して片持ち状に一体成形してあることを特徴とする自走型掃除機のバンパー装置。 A self-propelled type equipped with a rotating brush that rotates in contact with the floor under the left and right protruding corners on the front side of the housing, and a bumper member made of a resin molded body between the left and right rotating brushes In the vacuum cleaner,
A resin hinge provided in an opposing space between the rotating brush and the protruding corner on the upper side of the rotating brush is provided with a resin hinge portion having elasticity for displacing the damper inward and outward at the end of the bumper member. A bumper device for a self-propelled cleaner, wherein the bumper device is integrally molded in a cantilevered manner. 上記ダンパーは、その内面が上記出隅部から下向きに突き出た回転ブラシの回転軸を外側から囲い込む湾曲形状に形作られていると共に、その外面が上記出隅部の外面に沿う形状に形作られて上記出隅部の外面よりも外方に位置している請求項２に記載した自走型掃除機のバンパー装置。 The damper is formed in a curved shape that encloses from the outside the rotating shaft of the rotating brush whose inner surface protrudes downward from the protruding corner portion, and the outer surface is formed in a shape along the outer surface of the protruding corner portion. The bumper device for a self-propelled cleaner according to claim 2, wherein the bumper device is located outside the outer surface of the protruding corner. 上記バンパー部材の横方向中央部が、上記筐体に水平揺動可能及び前後移動可能に取り付けられている請求項２又は請求項３に記載した自走型掃除機のバンパー装置。 The bumper device of the self-propelled cleaner according to claim 2 or 3, wherein a lateral central portion of the bumper member is attached to the housing so as to be horizontally swingable and movable back and forth. 上記バンパー部材の横方向中央部と上記筐体との取付部では、筐体側に設けられた丸軸にバンパー部材からその内側に突出された支持体の開口部が水平揺動可能及び前後移動可能に嵌合されている請求項４に記載した自走型掃除機のバンパー装置。 At the mounting portion between the laterally central portion of the bumper member and the housing, the opening of the support projecting inward from the bumper member on the round shaft provided on the housing side is horizontally swingable and movable back and forth. The bumper device for a self-propelled cleaner according to claim 4, wherein the bumper device is fitted into the bumper. 上記バンパー部材が常時前方に付勢されている請求項２ないし請求項５のいずれか１項に記載した自走型掃除機のバンパー装置。 The bumper device for a self-propelled cleaner according to any one of claims 2 to 5, wherein the bumper member is always urged forward.
JP2005026142A 2005-02-02 2005-02-02 Bumper device of automotive vacuum cleaner Withdrawn JP2006212121A (en)

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US11/345,601 US20060191096A1 (en) 2005-02-02 2006-02-01 Bumper apparatus of self-advancing cleaner

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014014457A (en) * 2012-07-06 2014-01-30 Nikon Corp A cleaning device
JP2014133082A (en) * 2013-01-08 2014-07-24 Uni-Ring Tech Co Ltd Cleaning robot
JP2018061847A (en) * 2014-06-30 2018-04-19 パナソニックＩｐマネジメント株式会社 Autonomous travel-type cleaner
JP2018079170A (en) * 2016-11-18 2018-05-24 日立アプライアンス株式会社 Self-traveling vacuum cleaner
US10099659B1 (en) 2017-04-24 2018-10-16 Emerson Electric Co. Vehicle vacuum module and methods of installing same
US10328907B2 (en) 2016-03-31 2019-06-25 Emerson Electric Co. Modular vehicular vacuum cleaning system
US10750915B2 (en) 2017-01-09 2020-08-25 Emerson Electric Co. Vacuum cleaning systems and methods including slide out drum and filter interlock device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014014457A (en) * 2012-07-06 2014-01-30 Nikon Corp A cleaning device
JP2014133082A (en) * 2013-01-08 2014-07-24 Uni-Ring Tech Co Ltd Cleaning robot
JP2018061847A (en) * 2014-06-30 2018-04-19 パナソニックＩｐマネジメント株式会社 Autonomous travel-type cleaner
US10328907B2 (en) 2016-03-31 2019-06-25 Emerson Electric Co. Modular vehicular vacuum cleaning system
JP2018079170A (en) * 2016-11-18 2018-05-24 日立アプライアンス株式会社 Self-traveling vacuum cleaner
US10750915B2 (en) 2017-01-09 2020-08-25 Emerson Electric Co. Vacuum cleaning systems and methods including slide out drum and filter interlock device
US10099659B1 (en) 2017-04-24 2018-10-16 Emerson Electric Co. Vehicle vacuum module and methods of installing same

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