JP3820540B2

JP3820540B2 - Vacuum cleaner floor inlet

Info

Publication number: JP3820540B2
Application number: JP2000034737A
Authority: JP
Inventors: 正博山崎; 整司吉田
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2000-02-14
Filing date: 2000-02-14
Publication date: 2006-09-13
Anticipated expiration: 2020-02-14
Also published as: JP2001218710A

Description

【０００１】
【発明の属する技術分野】
本発明は、電気掃除機の床用吸込口体に関するものである。
【０００２】
【従来の技術】
図９、図１０は、例えば特公平８ー１５４７４号公報に開示された従来の電気掃除機の床用吸込口体の一例を示す縦断面図及びその底面側から見た斜視図である。この電気掃除機によって掃除を行う際には、横長の吸込口４１を絨毯の面に向けた状態にして、吸込口本体４０を前方または後方に進ませる。このとき、モータ４２によって清掃回転体４３が高速で回転し、清掃ブレード４４が絨毯上または絨毯中のごみをかき上げて吸塵を行う。
【０００３】
【発明が解決しようとする課題】
上記のように構成した電気掃除機の床用吸込口体によれば、毛足の長い絨毯の掃除を行う場合、吸込口４１が絨毯の毛で塞がってしまい、吸込口本体４０が絨毯に吸い付いて離れにくくなり、操作性が悪くなる場合があった。
【０００４】
本発明は上記のような課題を解決するためになされたもので、毛足の長い絨毯等であっても吸い付きが発生せず、操作性が極めて優れ、壁際でも吸塵性能が良好な電気掃除機の床用吸込口体を得ることを目的とする。
【０００５】
【課題を解決するための手段】
本発明にかかる電気掃除機の床用吸込口体は、塵埃等を吸引する吸込口を有する吸込口本体と、吸込口本体に回動自在に連結された連結筒とを備え、吸込口本体を上部の中空室と下部の吸込室に区画し、吸込室の前面に前面開口部と前面開口部を開閉する開閉扉を設けると共に、開閉扉と連動し吸込室内の負圧によって上下動する可動部を設け、前面開口部の上部に中空室と連通し開閉扉を収容する収容部を設けると共に、中空室に中空室と吸込室間を連通し可動部の上下動によって開閉する連通孔を備えた可動部支持室を設け、可動部支持室内を上下動する可動部と収容室内を移動する開閉扉とを中空室内において連結手段により連結した電気掃除機の床用吸込口体であって、可動部支持室に配設され弾性体によって可動板を中空室側に付勢して可動部支持室の連通孔を閉塞する可動部と、可動部に取り付けた歯形部と、回動自在に軸支され一端に前記歯形部と噛み合う歯形部を有し、他端に回動接続部を有するほぼＶ字状の回動部、前面開口部を開閉する開閉扉、開閉扉を収容する収容部内に配設され一端が前記回動部の回動接続部に連結され他端が開閉扉に連結された腕部とを備え、吸込室内の負圧が強まると可動部が吸込室方向に移動して開閉扉が前面開口部を開放し、吸込室内の負圧が弱まると可動部が中空室方向に移動して開閉扉により前面開口部を閉じるように構成した。
【０００６】
また、本発明にかかる電気掃除機の床用吸込口体は、塵埃等を吸引する吸込口を有する吸込口本体と、吸込口本体に回動自在に連結された連結筒とを備え、吸込口本体を上部の中空室と下部の吸込室に区画し、吸込室の前面に前面開口部と前面開口部を開閉する開閉扉を設けると共に、開閉扉と連動し吸込室内の負圧によって上下動する可動部を設け、開口部の上部に中空室と連通し開閉扉を収容する収容部を設けると共に、中空室に中空室と吸込室間を連通し可動部の上下動によって開閉する連通孔を備えた可動部支持室を設け、可動部支持室内を上下動する可動部と収容室内を移動する開閉扉とを中空室内において連結手段により連結した電気掃除機の床用吸込口体であって、可動部支持室に配設され弾性体によって可動板を中空室側に付勢して可動部支持室の連通孔を閉塞する可動部と、支持溝内に配設され弾性体により前面開口部側に付勢されて前面開口部を閉塞する開閉扉と、可動部と開閉扉との間に懸架された連結材とを備え、吸込室内の負圧が強まると可動部が吸込室方向に移動して開閉扉が前面開口部を開放し、吸込室内の負圧が弱まると可動部が中空室方向に移動して開閉扉により前面開口部を閉じるように構成した。
【０００７】
さらに、本発明にかかる電気掃除機の床用吸込口体は、中空室の壁面に外気と連通する小孔を設けた。
【０００９】
【発明の実施の形態】
［実施の形態１］
図１は本発明の実施の形態１の縦断面図、図２は一部を断面で示した図１の正面図である。１は電気掃除機の床用吸込口体の吸込口本体で、上ケース２と下ケース３を連結して内部に吸込口室４を形成している。５は吸込口本体１の底面の前部側に開口して塵埃等を含んだ空気を吸込口室４内に吸引する横長の吸込口である。５ａは吸込口本体１の吸込口室４を上下に分割する仕切壁で、下部側には吸込室６が設けられ、上部側には中空室７が設けられている。
８は吸込ホース（図示せず）に接続する連結筒で、吸込口本体１の後部、より詳しくは吸込室６の後部に回動自在に接続している。
【００１０】
９は仕切壁５の一部を吸込室６側に凹状に突出させて形成した可動部支持室で、その底面には中空室７と吸込室６を連通する連通孔９ａと、弾性体係止部９ｂが設けられている。１０は負圧によって上下方向に移動して可動部支持室９の連通孔９ａを開閉する可動部で、例えば吸込口本体１のほぼ中央部に設けられ、可動板１１と可動板支持体１２と弾性体１３とから構成されている。
【００１１】
可動部１０を詳述すると、可動板１１は可動支持室９の底面の下側に配設され、吸込室６が負圧状態になると吸込室６側に引き寄せられ、負圧状態が解除されると底面側に戻されて連通孔９ａを塞ぐ。また、可動板支持体１２は可動部支持室９内に配設され、下端部が可動板１１のほぼ中央部に取り付けられて連通孔９ａ内を貫通して上下動する軸部１２ａと、軸部１２ａの上端部に取り付けた座板１２ｂとからなり、軸部１２ａにはコイル状の弾性体１３が介装され、弾性体１３の上端部は座板１２ｂに当接し、下端部は弾性体係止部９ｂに当接されて、可動部１０を中空室７側に付勢している。
【００１２】
１４は可動板支持体１２の座板１２ｂの上部に可動板支持体１２の軸部１２ａとほぼ同軸になるように取付けた直線形状の歯形部で、歯部１４ａを前面側に向けてある。
１５は吸込口本体１の中空室７内に配設したほぼＶ字状の回動部で、中空室７内に固定した回動軸１６の回りに回動可能に取り付けられている。１７は回動部１５の後側すなわち直線形状の歯形部１４側に位置する腕部の先端部に設けた円弧形状の歯形部で、歯部１７ａが歯形部１４の歯部１４ａと噛み合うようにしてある。
【００１３】
１８は吸込口本体１の吸込室６の前壁２ａに開口した前面開口部で、前壁２ａの最下端まで開口してある。１９は吸込口本体１の前部で前面開口部１８の上部と仕切壁５ａとの間に形成された横方向に長い開口部で、吸込室６と中空室７を連通している。
２０は例えば弾性材からなり、吸込口本体１の前面開口部１８を開閉する開閉扉で、前面開口部１８に沿って上下動し、開口部１９のスペース内に収容されて前面開口部１８を開放する。２１は開口部１９内のほぼ中央部に配設され、その下端部が開閉扉２０の上部に連結されたほぼ逆Ｊ字状の腕部で、その上端部が回動部１５の回動接続部２２と回動可能に連結されている。２３は中空室７の上ケース２の上壁面に外気と連通するために設けた小孔である。
２４は吸込口本体１前方の左右両側に取付けた前車輪、２５は吸込室６後方の左右外側に取付けた後車輪である。
【００１４】
上記のように構成した実施の形態１の作用を説明する。まず、掃除機の床用吸込口体において、毛足の短い絨毯またはフローリング上での動作を図３を用いて説明する。毛足の短い絨毯またはフローリング２６上を掃除する場合は、塵埃等を含んだ空気流は、吸込口本体１の外部から横長の吸込口５を通過して吸込口室４の吸込室６内に流入し、連結筒８を通って掃除機本体方向に吸引される。このとき、吸込口５が毛によってふさがれることはないため、空気流はスムーズに流れ、吸込口本体１の吸込室６の負圧が極端に高まることはない。このため、可動部１０は負圧によって下方に押し下げられることはなく、開閉扉２０は前面開口部１８を閉塞している。
【００１５】
次に、この掃除機の床用吸込口体において、毛足の長い絨毯上での動作を図４を用いて説明する。毛足の長い絨毯２６ａ上を掃除する場合は、吸込口５が絨毯２６ａの毛によってふさがれる。このため、吸込口本体１の外部から吸込口５を通過して吸込室６内に流入する空気流が制限されてスムーズに流れることができず、吸込み空気の風量が制限されて、吸込室６の負圧が高まる。一方、中空室７は小孔２３を通じて外部の圧力と同じ圧力を保持している。このため、吸込室６内の負圧が極端に高まると、吸込室６と中空室７内に圧力差が生じ、可動部１０の可動板１１が吸込室６内の負圧によって下方に押しさげられ、可動部支持体１２の座板１２ａが弾性体１３を圧縮して下方に移動する。こうして、可動板１１の上部に位置する可動部支持室９の連通孔９ａが開口され、空気流が吸込口本体１の外部から小孔２３、中空室７、可動部支持室９の連通孔９ａを通って吸込室６内に流入し、吸込室６内に吸込み空気流が確保される。
【００１６】
一方、可動部１０が下方に押し下げられると、これと連動して、直線状の歯形部１４も下方に押し下げられる。回動部１５の一方の腕部に取り付けられた円弧形状の歯形部１７の歯部１７ａは、直線状の歯形部１４の歯部１４ａと噛み合っているので、直線状の歯形部１７が下方に押し下げられると、円弧状の歯形部１７ａは回動軸１６を軸として斜下方に回動し、このため回動軸１６を軸として他方の腕部の先端に位置する回動接続部２２が斜上方に移動する。回動接続部２２の移動にともなって腕部２１は斜上方に移動し、これに連結された開閉扉２０の一部が吸込口本体１の前面側に位置する開口部１９内に収容され、吸込口本体１の前面開口部１８を開く。こうして、吸込口本体１の前面開口部１８からも吸込室６内に空気流が流れ込み、吸込室６内に吸込み空気流が確保される。
【００１７】
なお、吸込室６内の負圧が減少して、弾性体１３の付勢力が吸込室６内の負圧以上になると、可動部１０は弾性体１３の弾性力によって上方に復帰し、これにともなって直線状の歯形部１４も上方に移動し、これに噛み合う曲線状の歯形部１７が連動して斜上方前側に移動し、回動部１５が回動軸１５を軸として回動し、回動接続部２２を斜下方に回動させ、腕部２１を降下させて開閉扉２０を下降させ、吸込口本体１の前面開口部１８を塞ぐ。
【００１８】
実施の形態１によれば、可動部支持室９の底面に設けた連通孔部９ａが開き、吸込口本体１の小孔２３等から吸込室６内に流入する空気流が確保されると、毛足の長い絨毯２６ａ上で吸込口５が毛によってふさがれて吸い付きが強くなることがなくなり、操作性が極めて向上する。また、弾性体の開閉扉２０が開口部１９のスペース内に引き込まれて前面開口部１８が開く結果、吸込口本体１の前面部からも空気が流入して、吸込口５側の空気流の風路が確保され、絨毯２６ａ等の床面で壁際の吸塵性能が向上するとともに、ごみを吸うことが可能になる。こうして、毛足の長い絨毯２６ａ上であっても、吸込口５が毛によってふさがれることがなくなり、吸込口本体１の床への吸い付きが起こらず、操作性が極めて向上する。
【００１９】
なお、上記の説明では、中空室７の壁面に外気と連通する小孔２３を設けたが、中空室７の前部に開閉扉２０の収納スペースである開口部１９が存在するため、中空室７には少なからず外気との連絡口が存在する。このため、中空室７の壁面には外気と連通する小孔２３を必ずしも設ける必要はない。また、上記の説明では吸込口本体１のほぼ中央部に可動部１０及び開閉扉２０の駆動機構を設けたが、可動部１０及び駆動機構を吸込口本体１の両サイドに設けてもよい。
【００２０】
［実施の形態２］
図５は本発明の実施の形態２の縦断面図、図６は一部を断面で示したその正面図である。なお、実施の形態１で示した部分と同一部分には同じ符号を付し、説明を省略する。２７は吸込口本体１の開口部１９の上方に形成された開閉扉２０の支持溝で、前壁２ａを吸込口本体１の内側方向にほぼＵ字状に折り曲げてその端部を仕切壁５と接続し、中空室７側に係止部２７ａ，２７ｂを設けてほぼ断面楕円形状に形成したものである。
２８は開閉扉２０の上部に左右両サイドに突出するようにして取り付けた扉支持棒で、支持溝２７内に挿入されてその内部を上下動する。２９は支持溝２７の両サイドにおいて係止部２７ａ，２７ｂと扉支持棒２８との間に介装されたコイル状の支持溝側弾性体で、扉支持棒２８、すなわち開閉扉２０を前面開口部１８側（下方）に付勢している。
【００２１】
３０は可動部１０と開閉扉２０を連結する例えばワイヤの如き連結材で、その中央部が可動板支持体１２に固定され、左右に振分けてそれぞれプーリ３１，３２を介して両端部が扉支持棒２８に取付けられて、扉支持棒２８、したがって開閉扉２０を支持している。なお、２本の連結材の一端をそれぞれ可動板支持体１２に固定し、プーリ３１，３２を介して他端をそれぞれ扉支持棒２８に取付けてもよい。
【００２２】
上記のように構成した実施の形態２の作用を説明する。まず、掃除機の床用吸込口体において、毛足の短い絨毯またはフローリング上での動作を図７を用いて説明する。毛足の短い絨毯またはフローリング２６上を掃除する場合は、塵埃等を含んだ空気流は、吸込口本体１の外部から吸込口５を通過して吸込室６内に流入し、連結筒８を通って掃除機本体方向に吸引される。このとき、吸込口５が毛によってふさがれることはないため、空気流はスムースに流れ、吸込口体１の吸込室６内の負圧が極端に高まることはない。このため、可動部１０は負圧によって下方に押し下げられることはなく、開閉扉２０は下降して前面開口部１８を閉塞している。
【００２３】
次に、この掃除機の床用吸込口体において、毛足の長い絨毯２６ａ上での動作を図８を用いて説明する。毛足の長い絨毯２６ａ上を掃除する場合は、吸込口５が絨毯２６ａの毛によってふさがれる。このため、吸込口本体１の外部から吸込口５を通過して吸込室６内に流入する空気流が制限されてスムーズに流れることができず、吸込み空気の風量が制限されて、吸込室６内の負圧が高まる。一方、中空室７は小孔２３通じて外部の圧力と同じ圧力を保持している。このため、吸込室６内の負圧が極端に高まると、吸込室６と中空室７に圧力差が生じ、可動部１０が下方に押し下げられる。こうして、可動部１０の可動板１１の上部に位置する可動部支持室９の底面の連通孔９ａが開き、吸込み空気流が吸込口本体１の外部から小孔２３、中空室７、可動部支持室９の底面の連通孔９ａを通って吸込室６内へ流入し、吸込室６内に吸込み空気流が確保される。
【００２４】
一方、可動部１０が下方に押しさげられ、可動板支持体１２が降下すると、連結材３０に連結された扉支持棒２８は、支持溝２７内の支持溝側弾性体２９の付勢力に抗して支持溝２７内を上方向に引き上げられ、これにともなって開閉扉２０の一部が吸込口本体１の前面側に位置する開口部１９から支持溝２７内に収容され、前面開口部１８を開く。こうして、吸込口本体１の前面開口部１８からも吸込室６内に吸込み空気流が流入し、吸込室６内に吸込み空気流が確保される。
【００２５】
なお、吸込室６内の負圧が減少して、吸込室６内の負圧が弾性体１３の付勢力以下になると、可動部１０は上方に移動し、連結材３０の可動部１０方向への引張力が減少し、扉支持棒２８が支持溝２７内の支持溝側弾性体２９の付勢力によって下方に押し戻され、開閉扉２０を降下させて、吸込口本体１の前面開口部１８をふさぐ。
【００２６】
実施の形態２によれば、可動部支持室９の底面の連通孔９ａが開き、吸込口本体１の外部から吸込口本体１内に流入する吸込み空気流が確保されると、毛足の長い絨毯２６ａ上で、吸込口５が毛によってふさがれて吸い付きが強くなることがなくなり、操作性が極めて向上する。また、開閉扉２０が開口部１９から支持溝２７内に収容される結果、吸込口５側の吸込み空気流の風路が確保されて、絨毯２６ａ等の床面で、壁際の吸塵性能が向上すると共に、ごみを吸うことが可能になる。こうして、毛足の長い絨毯２６ａ上であっても、吸込口５が毛によってふさがれることがなくなり、吸込口本体１の床への吸い付きが起こらず、操作性が極めて向上する。
【００２７】
【発明の効果】
以上の説明から明らかなように、本発明は、塵埃等を吸引する吸込口を有する吸込口本体と、吸込口本体に回動自在に連結された連結筒とを備え、吸込口本体を上部の中空室と下部の吸込室に区画し、吸込室の前面に前面開口部と前面開口部を開閉する開閉扉を設けると共に、開閉扉と連動し吸込室内の負圧によって上下動する可動部を設け、開口部の上部に中空室と連通し開閉扉を収容する収容部を設けると共に、中空室に中空室と吸込室間を連通し可動部の上下動によって開閉する連通孔を備えた可動部支持室を設け、可動部支持室内を上下動する可動部と収容室内を移動する開閉扉とを中空室内において連結手段により連結した電気掃除機の床用吸込口体であって、可動部支持室に配設され弾性体によって可動板を中空室側に付勢して前記可動部支持室の連通孔を閉塞する可動部と、可動部に取り付けた歯形部と、回動自在に軸支され一端に歯形部と噛み合う歯形部を有し、他端に回動接続部を有するほぼＶ字状の回動部、前面開口部を開閉する開閉扉、開閉扉を収容する収容部内に配設され一端が回動部の回動接続部に連結され他端が開閉扉に連結された腕部とを備え、吸込室内の負圧が強まると可動部が吸込室方向に移動して開閉扉が前面開口部を開放し、吸込室内の負圧が弱まると可動部が中空室方向に移動して開閉扉により前面開口部を閉じるように構成したので、簡易で経済的な装置によって、毛足の長い絨毯上で絨毯への吸い付きが弱くなり、操作性能が飛躍的に向上し、壁際の吸塵性能も向上する。
【００２８】
また、本発明にかかる電気掃除機の床用吸込口体は、塵埃等を吸引する吸込口を有する吸込口本体と、吸込口本体に回動自在に連結された連結筒とを備え、吸込口本体を上部の中空室と下部の吸込室に区画し、吸込室の前面に前面開口部と前面開口部を開閉する開閉扉を設けると共に、開閉扉と連動し吸込室内の負圧によって上下動する可動部を設け、開口部の上部に中空室と連通し開閉扉を収容する収容部を設けると共に、中空室に中空室と吸込室間を連通し可動部の上下動によって開閉する連通孔を備えた可動部支持室を設け、可動部支持室内を上下動する可動部と収容室内を移動する開閉扉とを中空室内において連結手段により連結した電気掃除機の床用吸込口体であって、可動部支持室に配設され弾性体によって可動板を中空室側に付勢して可動部支持室の連通孔を閉塞する可動部と、支持溝内に配設され弾性体により前面開口部側に付勢されて前面開口部を閉塞する開閉扉と、前記可動部と開閉扉との間に懸架された連結材とを備え、前記吸込室内の負圧が強まると可動部が吸込室方向に移動して開閉扉が前面開口部を開放し、吸込室内の負圧が弱まると可動部が中空室方向に移動して開閉扉により前面開口部を閉じるように構成したので、簡易で経済的な装置によって、毛足の長い絨毯上で絨毯への吸い付きが弱くなり、操作性能が飛躍的に向上し、壁際の吸塵性能も向上する。
さらに、本発明にかかる電気掃除機の床用吸込口体は、中空室の壁面に外気と連通する小孔を設けたので、外気との連通が良好になる。
【図面の簡単な説明】
【図１】本発明の実施の形態１の縦断面図である。
【図２】一部を断面で示した図１の正面図である。
【図３】図１の作用説明図である。
【図４】図１の作用説明図である。
【図５】本発明の実施の形態２の縦断面図である。
【図６】一部を断面で示した図５の正面図である。
【図７】図５の作用説明図である。
【図８】図５の作用説明図である。
【図９】従来の電気掃除機の床用吸込口体の一例の縦断面図である。
【図１０】図７の底面側からの斜視図である。
【符号の説明】
１吸込口本体、４吸込口室、５吸込口、５ａ仕切壁、６吸込室、７中空室、８連結筒、９可動部支持室、９ａ連通孔、１０可動部、１１可動板、１３弾性体、１４直線形状の歯形部、１５回動部、１７円弧形状の歯形部、１８前面開口部、１９開口部、２０開閉扉、２１腕部、２２回動接続部、２３小孔、２７支持溝、２８扉支持棒、２９支持溝側弾性体、３０連結材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor suction port for a vacuum cleaner.
[0002]
[Prior art]
9 and 10 are a longitudinal sectional view showing an example of a floor suction port body of a conventional vacuum cleaner disclosed in, for example, Japanese Patent Publication No. 8-15474, and a perspective view seen from the bottom side. When cleaning is performed with this electric vacuum cleaner, the suction port body 40 is moved forward or backward with the horizontally long suction port 41 facing the carpet surface. At this time, the cleaning rotator 43 is rotated at a high speed by the motor 42, and the cleaning blade 44 scoops up dust on the carpet or in the carpet to absorb the dust.
[0003]
[Problems to be solved by the invention]
According to the floor suction port body of the vacuum cleaner configured as described above, when cleaning a carpet having a long bristle, the suction port 41 is blocked by the hair of the carpet, and the suction port body 40 sucks into the carpet. In some cases, it becomes difficult to leave and the operability may deteriorate.
[0004]
The present invention has been made to solve the above-described problems, and even a carpet with a long bristle or the like does not cause sticking, has excellent operability, and has excellent dust absorption performance even at the wall. The purpose is to obtain a floor inlet for the machine.
[0005]
[Means for Solving the Problems]
A floor suction port body of a vacuum cleaner according to the present invention includes a suction port body having a suction port for sucking dust and the like, and a connecting cylinder rotatably connected to the suction port body. A movable part that is divided into an upper hollow chamber and a lower suction chamber, and that has a front opening and an opening / closing door that opens and closes the front opening on the front of the suction chamber, and that moves vertically by negative pressure in the suction chamber in conjunction with the opening / closing door Provided with a housing portion that communicates with the hollow chamber at the upper portion of the front opening and accommodates the open / close door, and has a communication hole that opens and closes the hollow chamber and the suction chamber by the vertical movement of the movable portion. A floor suction port body for a vacuum cleaner in which a movable part supporting chamber is provided, and a movable part that moves up and down in the movable part supporting chamber and an open / close door that moves in the accommodating chamber are connected by a connecting means in the hollow chamber. A movable plate is attached to the hollow chamber side by an elastic body provided in the support chamber. A movable portion that closes the communication hole of the movable portion support chamber, a tooth profile portion attached to the movable portion, a tooth profile portion that is pivotally supported and meshes with the tooth profile portion at one end, and rotates at the other end. A substantially V-shaped rotating part having a connecting part, an opening / closing door for opening and closing the front opening, and one end connected to the rotating connecting part of the rotating part, the other end being disposed in the accommodating part for accommodating the opening / closing door. Arm part connected to the open / close door, the movable part moves in the direction of the suction chamber when the negative pressure in the suction chamber increases, the open / close door opens the front opening, the movable part when the negative pressure in the suction chamber decreases Moved in the direction of the hollow chamber, and the front opening was closed by the open / close door.
[0006]
Further, the floor suction port body of the vacuum cleaner according to the present invention includes a suction port body having a suction port for sucking dust and the like, and a connecting cylinder rotatably connected to the suction port body. The main body is divided into an upper hollow chamber and a lower suction chamber, and a front opening and an opening / closing door that opens and closes the front opening are provided on the front of the suction chamber, and moves up and down by the negative pressure in the suction chamber in conjunction with the opening / closing door. A movable part is provided, and an accommodation part is provided in the upper part of the opening so as to communicate with the hollow chamber and accommodate an opening / closing door, and the hollow chamber has a communication hole that communicates between the hollow chamber and the suction chamber and is opened and closed by the vertical movement of the movable part. This is a floor suction port body for a vacuum cleaner in which a movable part supporting chamber is provided, and a movable part that moves up and down in the movable part supporting chamber and an open / close door that moves in the accommodating chamber are connected by a connecting means in the hollow chamber. The movable plate is placed on the hollow chamber side by an elastic body. A movable portion that closes the communication hole of the movable portion support chamber, an opening / closing door that is disposed in the support groove and is urged toward the front opening by the elastic body to close the front opening, and the movable portion opens and closes When the negative pressure in the suction chamber increases, the movable part moves in the direction of the suction chamber, the opening and closing door opens the front opening, and the negative pressure in the suction chamber decreases The movable part was moved in the direction of the hollow chamber, and the front opening was closed by the open / close door.
[0007]
Furthermore, the floor suction port body of the vacuum cleaner according to the present invention is provided with a small hole communicating with the outside air on the wall surface of the hollow chamber.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
[Embodiment 1]
1 is a longitudinal sectional view of Embodiment 1 of the present invention, and FIG. 2 is a front view of FIG. Reference numeral 1 denotes a suction port body of a floor suction port body of a vacuum cleaner, which connects an upper case 2 and a lower case 3 to form a suction port chamber 4 therein. Reference numeral 5 denotes a horizontally long suction port that opens to the front side of the bottom surface of the suction port body 1 and sucks air containing dust and the like into the suction port chamber 4. 5a is a partition wall that divides the suction port chamber 4 of the suction port body 1 into upper and lower portions. A suction chamber 6 is provided on the lower side, and a hollow chamber 7 is provided on the upper side.
A connecting cylinder 8 is connected to a suction hose (not shown), and is pivotally connected to the rear part of the suction port body 1, more specifically, the rear part of the suction chamber 6.
[0010]
Reference numeral 9 denotes a movable portion support chamber formed by projecting a part of the partition wall 5 in a concave shape toward the suction chamber 6, and a communication hole 9 a for communicating the hollow chamber 7 and the suction chamber 6 is formed on the bottom surface of the movable portion support chamber. A portion 9b is provided. Reference numeral 10 denotes a movable part that moves up and down by negative pressure to open and close the communication hole 9a of the movable part support chamber 9. For example, the movable part 10 is provided substantially at the center of the suction port body 1, and includes a movable plate 11, a movable plate support 12, And an elastic body 13.
[0011]
The movable part 10 will be described in detail. The movable plate 11 is disposed below the bottom surface of the movable support chamber 9, and when the suction chamber 6 is in a negative pressure state, the movable plate 11 is drawn toward the suction chamber 6 and the negative pressure state is released. And returned to the bottom side to close the communication hole 9a. Further, the movable plate support 12 is disposed in the movable portion support chamber 9, and a lower end portion is attached to a substantially central portion of the movable plate 11, and a shaft portion 12a that moves up and down through the communication hole 9a, and a shaft It comprises a seat plate 12b attached to the upper end portion of the portion 12a. A coiled elastic body 13 is interposed in the shaft portion 12a, the upper end portion of the elastic body 13 abuts on the seat plate 12b, and the lower end portion is an elastic body. The movable portion 10 is urged toward the hollow chamber 7 by being brought into contact with the locking portion 9b.
[0012]
Reference numeral 14 denotes a linear tooth profile portion attached to the upper portion of the seat plate 12b of the movable plate support 12 so as to be substantially coaxial with the shaft portion 12a of the movable plate support 12, and the tooth portion 14a faces the front side.
Reference numeral 15 denotes a substantially V-shaped rotating portion disposed in the hollow chamber 7 of the suction port body 1, and is attached so as to be rotatable around a rotating shaft 16 fixed in the hollow chamber 7. Reference numeral 17 denotes an arc-shaped tooth profile provided at the tip of the arm part located on the rear side of the rotating part 15, that is, on the linear tooth profile part 14 side, so that the tooth part 17 a meshes with the tooth part 14 a of the tooth profile part 14. It is.
[0013]
Reference numeral 18 denotes a front opening that opens to the front wall 2a of the suction chamber 6 of the suction port body 1, and opens to the lowest end of the front wall 2a. Reference numeral 19 denotes a front opening of the suction port body 1 that is formed between the upper portion of the front opening 18 and the partition wall 5a and is long in the lateral direction, and communicates the suction chamber 6 and the hollow chamber 7.
An open / close door 20 is made of, for example, an elastic material and opens and closes the front opening 18 of the suction inlet body 1. The door 20 moves up and down along the front opening 18 and is accommodated in the space of the opening 19 to open the front opening 18. Open. Reference numeral 21 denotes a substantially inverted J-shaped arm portion which is disposed at a substantially central portion in the opening portion 19 and whose lower end portion is connected to the upper portion of the opening / closing door 20, and whose upper end portion is a rotation connection of the rotation portion 15. The part 22 is rotatably connected. A small hole 23 is provided in the upper wall surface of the upper case 2 of the hollow chamber 7 so as to communicate with the outside air.
Reference numeral 24 denotes a front wheel attached to the left and right sides in front of the suction inlet body 1, and reference numeral 25 denotes a rear wheel attached to the left and right outer sides behind the suction chamber 6.
[0014]
The operation of the first embodiment configured as described above will be described. First, the operation of the floor suction port body of the vacuum cleaner on a carpet or flooring with short hairs will be described with reference to FIG. When cleaning the carpet or the floor 26 with short hairs, the air flow including dust or the like passes from the outside of the suction port body 1 through the horizontally long suction port 5 into the suction chamber 6 of the suction port chamber 4. It flows in and is sucked through the connecting cylinder 8 toward the cleaner body. At this time, since the suction port 5 is not blocked by hair, the airflow flows smoothly, and the negative pressure in the suction chamber 6 of the suction port body 1 is not extremely increased. For this reason, the movable part 10 is not pushed downward by the negative pressure, and the open / close door 20 closes the front opening 18.
[0015]
Next, the operation on the carpet having a long bristle foot in the floor suction port body of the vacuum cleaner will be described with reference to FIG. When cleaning the carpet 26a having a long bristle, the suction port 5 is blocked by the hair of the carpet 26a. For this reason, the air flow that passes through the suction port 5 from the outside of the suction port main body 1 and flows into the suction chamber 6 is restricted and cannot flow smoothly, and the air volume of the suction air is restricted. The negative pressure increases. On the other hand, the hollow chamber 7 holds the same pressure as the external pressure through the small hole 23. For this reason, when the negative pressure in the suction chamber 6 is extremely increased, a pressure difference is generated in the suction chamber 6 and the hollow chamber 7, and the movable plate 11 of the movable portion 10 is pushed downward by the negative pressure in the suction chamber 6. Then, the seat 12a of the movable part support 12 compresses the elastic body 13 and moves downward. In this way, the communication hole 9a of the movable part support chamber 9 located at the upper part of the movable plate 11 is opened, and the air flow from the outside of the suction port body 1 is small holes 23, the hollow chamber 7, and the communication hole 9a of the movable part support chamber 9. And flows into the suction chamber 6, and a suction air flow is secured in the suction chamber 6.
[0016]
On the other hand, when the movable part 10 is pushed down, the linear tooth profile part 14 is also pushed down in conjunction with this. Since the tooth portion 17a of the arc-shaped tooth profile portion 17 attached to one arm portion of the rotating portion 15 meshes with the tooth portion 14a of the linear tooth profile portion 14, the linear tooth profile portion 17 is downward. When pushed down, the arcuate tooth profile portion 17a pivots obliquely downward about the pivot shaft 16, so that the pivot connection portion 22 located at the tip of the other arm portion tilts around the pivot shaft 16. Move upward. With the movement of the rotational connection portion 22, the arm portion 21 moves obliquely upward, and a part of the opening / closing door 20 connected thereto is accommodated in the opening portion 19 located on the front side of the suction inlet body 1, The front opening 18 of the suction inlet body 1 is opened. In this way, an air flow also flows into the suction chamber 6 from the front opening 18 of the suction port body 1, and the suction air flow is secured in the suction chamber 6.
[0017]
When the negative pressure in the suction chamber 6 decreases and the urging force of the elastic body 13 becomes equal to or higher than the negative pressure in the suction chamber 6, the movable portion 10 returns upward due to the elastic force of the elastic body 13. Along with this, the linear tooth profile portion 14 also moves upward, the curved tooth profile portion 17 that meshes with the linear tooth profile portion 14 moves obliquely upward, and the rotation portion 15 rotates about the rotation shaft 15. The rotation connecting portion 22 is rotated obliquely downward, the arm portion 21 is lowered, the open / close door 20 is lowered, and the front opening 18 of the suction inlet body 1 is closed.
[0018]
According to the first embodiment, when the communication hole portion 9a provided on the bottom surface of the movable portion support chamber 9 is opened, and an air flow flowing into the suction chamber 6 from the small hole 23 or the like of the suction port body 1 is secured, The suction port 5 is not blocked by the hair on the carpet 26a having a long bristle foot, and the sticking does not become strong, and the operability is greatly improved. In addition, as a result of the elastic opening / closing door 20 being drawn into the space of the opening 19 and the front opening 18 being opened, air also flows from the front portion of the suction port body 1, and the air flow on the suction port 5 side is reduced. An air path is secured, and the dust absorption performance near the wall is improved on the floor surface of the carpet 26a and the like, and dust can be sucked. In this way, even on the carpet 26a having long hairs, the suction port 5 is not blocked by hair, and the suction port main body 1 is not attracted to the floor, so that the operability is greatly improved.
[0019]
In the above description, the small hole 23 communicating with the outside air is provided on the wall surface of the hollow chamber 7. However, since the opening 19 serving as a storage space for the opening / closing door 20 exists in the front portion of the hollow chamber 7, 7 has a lot of contact with outside air. For this reason, it is not always necessary to provide the small hole 23 communicating with the outside air on the wall surface of the hollow chamber 7. In the above description, the drive mechanism for the movable portion 10 and the opening / closing door 20 is provided in the substantially central portion of the suction port body 1, but the movable portion 10 and the drive mechanism may be provided on both sides of the suction port body 1.
[0020]
[Embodiment 2]
FIG. 5 is a longitudinal sectional view of Embodiment 2 of the present invention, and FIG. 6 is a front view showing a part thereof in section. In addition, the same code | symbol is attached | subjected to the part same as the part shown in Embodiment 1, and description is abbreviate | omitted. Reference numeral 27 denotes a support groove of the opening / closing door 20 formed above the opening 19 of the inlet body 1, and the front wall 2 a is bent in a substantially U shape inwardly of the inlet body 1, and the end thereof is the partition wall 5. And the locking portions 27a and 27b are provided on the hollow chamber 7 side so as to have a substantially elliptical cross section.
A door support bar 28 is attached to the upper part of the open / close door 20 so as to protrude on both the left and right sides. The door support bar 28 is inserted into the support groove 27 and moves up and down. Reference numeral 29 denotes a coiled support groove side elastic body interposed between the locking portions 27a and 27b and the door support bar 28 on both sides of the support groove 27. The door support bar 28, that is, the open / close door 20 is opened to the front. It is biased toward the part 18 side (downward).
[0021]
Reference numeral 30 denotes a connecting material such as a wire for connecting the movable part 10 and the opening / closing door 20, and its central part is fixed to the movable plate support 12, and both ends are supported by the doors via pulleys 31 and 32, respectively. It is attached to the rod 28 and supports the door support rod 28, and thus the open / close door 20. One end of each of the two connecting members may be fixed to the movable plate support 12 and the other end may be attached to the door support rod 28 via pulleys 31 and 32, respectively.
[0022]
The operation of the second embodiment configured as described above will be described. First, the operation on the carpet or flooring with short hairs in the floor suction port of the vacuum cleaner will be described with reference to FIG. When cleaning the carpet or the floor 26 with short hairs, the air flow including dust or the like passes through the suction port 5 from the outside of the suction port body 1 and flows into the suction chamber 6, and passes through the connecting cylinder 8. It is sucked through the vacuum cleaner body. At this time, since the suction port 5 is not blocked by hair, the airflow flows smoothly, and the negative pressure in the suction chamber 6 of the suction port body 1 is not extremely increased. For this reason, the movable part 10 is not pushed down by the negative pressure, and the open / close door 20 is lowered to close the front opening 18.
[0023]
Next, the operation of the floor suction port body of the vacuum cleaner on the carpet 26a having a long bristle will be described with reference to FIG. When cleaning the carpet 26a having a long bristle, the suction port 5 is blocked by the hair of the carpet 26a. For this reason, the air flow that passes through the suction port 5 from the outside of the suction port main body 1 and flows into the suction chamber 6 is restricted and cannot flow smoothly, and the air volume of the suction air is restricted. The negative pressure inside increases. On the other hand, the hollow chamber 7 maintains the same pressure as the external pressure through the small hole 23. For this reason, if the negative pressure in the suction chamber 6 increases extremely, a pressure difference will arise in the suction chamber 6 and the hollow chamber 7, and the movable part 10 will be pushed down below. In this way, the communication hole 9a on the bottom surface of the movable portion support chamber 9 located above the movable plate 11 of the movable portion 10 is opened, and the suction air flow from the outside of the suction port main body 1 to the small hole 23, the hollow chamber 7, and the movable portion support. The air flows into the suction chamber 6 through the communication hole 9 a on the bottom surface of the chamber 9, and a suction air flow is secured in the suction chamber 6.
[0024]
On the other hand, when the movable part 10 is pushed downward and the movable plate support 12 is lowered, the door support rod 28 connected to the connecting member 30 resists the urging force of the support groove side elastic body 29 in the support groove 27. Then, the inside of the support groove 27 is pulled upward, and along with this, a part of the opening / closing door 20 is accommodated in the support groove 27 from the opening 19 located on the front side of the suction inlet body 1, and the front opening 18. open. In this way, the suction air flow also flows into the suction chamber 6 from the front opening 18 of the suction port body 1, and the suction air flow is secured in the suction chamber 6.
[0025]
When the negative pressure in the suction chamber 6 decreases and the negative pressure in the suction chamber 6 becomes equal to or less than the biasing force of the elastic body 13, the movable portion 10 moves upward and moves toward the movable portion 10 of the connecting member 30. , The door support bar 28 is pushed back downward by the urging force of the support groove side elastic body 29 in the support groove 27, the opening / closing door 20 is lowered, and the front opening 18 of the suction inlet body 1 is moved. Block.
[0026]
According to the second embodiment, when the communication hole 9a on the bottom surface of the movable portion support chamber 9 is opened, and the suction air flow flowing into the suction port body 1 from the outside of the suction port body 1 is secured, the hairs are long. On the carpet 26a, the suction port 5 is not blocked by the hair and the sticking does not become strong, and the operability is greatly improved. In addition, as a result of the opening / closing door 20 being accommodated in the support groove 27 from the opening portion 19, an air passage for the suction air flow on the suction port 5 side is secured, and the dust absorption performance near the wall is improved on the floor surface of the carpet 26 a and the like. In addition, it becomes possible to suck in garbage. In this way, even on the carpet 26a having long hairs, the suction port 5 is not blocked by hair, and the suction port main body 1 is not attracted to the floor, so that the operability is greatly improved.
[0027]
【The invention's effect】
As apparent from the above description, the present invention includes a suction inlet main body, e Bei and rotatably connected to a connecting tube to the suction port body, the suction port main body upper having a suction port for sucking dust or the like A hollow chamber and a lower suction chamber are provided, and a front opening and an opening / closing door that opens and closes the front opening are provided on the front surface of the suction chamber, and a movable portion that moves up and down by the negative pressure in the suction chamber in conjunction with the opening / closing door. A movable part provided with a communicating hole that opens and closes the hollow chamber and communicates between the hollow chamber and the suction chamber and opens and closes by a vertical movement of the movable part. A suction port for a floor of a vacuum cleaner, provided with a support chamber, wherein a movable portion that moves up and down in the movable portion support chamber and an open / close door that moves in the accommodation chamber are connected by a connecting means in the hollow chamber, the movable portion support chamber The movable plate is urged toward the hollow chamber by an elastic body. A movable part that closes the communication hole of the movable part support chamber, a tooth profile part that is attached to the movable part, a tooth profile part that is pivotally supported and meshes with the tooth profile part at one end, and a rotational connection part at the other end A substantially V-shaped pivoting part, an opening / closing door for opening and closing the front opening, and one end connected to the pivoting connecting part of the pivoting part and the other end to the opening / closing door. When the negative pressure in the suction chamber increases, the movable part moves in the direction of the suction chamber, the open / close door opens the front opening, and when the negative pressure in the suction chamber decreases, the movable part becomes a hollow chamber. Since the front opening is closed by the opening and closing door, the simple and economical device reduces the sticking to the carpet on long carpets and dramatically improves the operating performance. In addition, the dust absorption performance near the wall is also improved.
[0028]
Further, the floor suction port body of the vacuum cleaner according to the present invention includes a suction port body having a suction port for sucking dust and the like, and a connecting cylinder rotatably connected to the suction port body. The main body is divided into an upper hollow chamber and a lower suction chamber, and a front opening and an opening / closing door that opens and closes the front opening are provided on the front of the suction chamber, and moves up and down by the negative pressure in the suction chamber in conjunction with the opening / closing door. A movable part is provided, and an accommodation part is provided in the upper part of the opening so as to communicate with the hollow chamber and accommodate an opening / closing door, and the hollow chamber has a communication hole that communicates between the hollow chamber and the suction chamber and is opened and closed by the vertical movement of the movable part. This is a floor suction port body for a vacuum cleaner in which a movable part supporting chamber is provided, and a movable part that moves up and down in the movable part supporting chamber and an open / close door that moves in the accommodating chamber are connected by a connecting means in the hollow chamber. The movable plate is placed on the hollow chamber side by an elastic body. A movable part that energizes and closes the communication hole of the movable part support chamber; an open / close door that is disposed in the support groove and is urged toward the front opening by the elastic body to close the front opening; and the movable part; A connecting member suspended between the opening and closing door, and when the negative pressure in the suction chamber increases, the movable part moves toward the suction chamber, the opening and closing door opens the front opening, and the negative pressure in the suction chamber is reduced. When it is weakened, the movable part moves in the direction of the hollow chamber and the front opening is closed by the opening and closing door, so the simple and economical device weakens the sticking to the carpet on the carpet with long hairs, The operating performance is dramatically improved and the dust absorption performance near the wall is also improved.
Furthermore, since the suction inlet for floors of the vacuum cleaner concerning this invention provided the small hole connected with external air in the wall surface of a hollow chamber, communication with external air becomes favorable.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of a first embodiment of the present invention.
FIG. 2 is a front view of FIG. 1 partially showing a cross section.
FIG. 3 is an operation explanatory diagram of FIG. 1;
FIG. 4 is an operation explanatory diagram of FIG. 1;
FIG. 5 is a longitudinal sectional view of a second embodiment of the present invention.
6 is a front view of FIG. 5 showing a part in cross section.
FIG. 7 is an operation explanatory diagram of FIG.
FIG. 8 is an operation explanatory diagram of FIG. 5;
FIG. 9 is a longitudinal sectional view of an example of a floor suction port body of a conventional electric vacuum cleaner.
10 is a perspective view from the bottom side of FIG. 7. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Suction port main body, 4 Suction port chamber, 5 Suction port, 5a Partition wall, 6 Suction chamber, 7 Hollow chamber, 8 Connection cylinder, 9 Movable part support chamber, 9a Communication hole, 10 Movable part, 11 Movable plate, 13 Elasticity Body, 14 Linear tooth form part, 15 Turning part, 17 Arc shaped tooth form part, 18 Front opening part, 19 Opening part, 20 Opening / closing door, 21 Arm part, 22 Turning connection part, 23 Small hole, 27 Support Groove, 28 door support rod, 29 support groove side elastic body, 30 connecting material.

Claims

E Bei a suction port body having a suction port for sucking dust or the like, and a connecting cylinder which is pivotally connected to the suction plug mouth body,
The suction port body is partitioned into an upper hollow chamber and a lower suction chamber, and a front opening and an opening / closing door for opening / closing the front opening are provided on the front surface of the suction chamber, and the suction chamber is interlocked with the opening / closing door. A movable part that moves up and down by the negative pressure of
A storage portion that communicates with the hollow chamber at the upper portion of the front opening and accommodates the opening / closing door is provided, and a communication hole that communicates between the hollow chamber and the suction chamber and opens and closes by the vertical movement of the movable portion is provided in the hollow chamber. A suction port for a floor of a vacuum cleaner provided with a movable portion support chamber, wherein a movable portion that moves up and down in the movable portion support chamber and an open / close door that moves in the accommodation chamber are connected by a connecting means in the hollow chamber. ,
A movable part disposed in the movable part support chamber and biasing the movable plate toward the hollow chamber side by an elastic body to close the communication hole of the movable part support chamber; a tooth profile attached to the movable part; and a rotatable part A substantially V-shaped rotation part having a tooth profile part that is pivotally supported by one end and meshing with the tooth profile part at one end and a rotation connection part at the other end, an opening / closing door that opens and closes the front opening, and the opening / closing door is accommodated. An arm portion disposed in the housing portion and having one end connected to the rotation connection portion of the rotation portion and the other end connected to the opening / closing door;
When the negative pressure in the suction chamber increases, the movable part moves in the direction of the suction chamber, the opening / closing door opens the front opening, and when the negative pressure in the suction chamber decreases, the movable part moves in the direction of the hollow chamber. A floor suction inlet for a vacuum cleaner, wherein the front opening is closed by the open / close door .

A suction port body having a suction port for sucking dust and the like, and a connecting cylinder rotatably connected to the suction port body,
  The suction port body is divided into an upper hollow chamber and a lower suction chamber, a front opening and an opening / closing door for opening / closing the front opening are provided on the front surface of the suction chamber, and the suction chamber is interlocked with the opening / closing door. A movable part that moves up and down by the negative pressure of
  A storage portion that communicates with the hollow chamber at the upper portion of the front opening and accommodates the opening / closing door is provided, and a communication hole that communicates between the hollow chamber and the suction chamber and opens and closes by the vertical movement of the movable portion is provided in the hollow chamber. A suction port for a floor of a vacuum cleaner provided with a movable portion support chamber, wherein a movable portion that moves up and down in the movable portion support chamber and an open / close door that moves in the accommodation chamber are connected by a connecting means in the hollow chamber. ,
  A movable portion disposed in the movable portion support chamber and biasing the movable plate toward the hollow chamber by the elastic body to close the communication hole of the movable portion support chamber; and a front opening portion disposed in the support groove by the elastic body. An opening / closing door that is biased to the side to close the front opening, and a connecting member suspended between the movable portion and the opening / closing door,
  When the negative pressure in the suction chamber increases, the movable part moves in the direction of the suction chamber, the opening / closing door opens the front opening, and when the negative pressure in the suction chamber decreases, the movable part moves in the direction of the hollow chamber. A floor suction inlet for a vacuum cleaner, wherein the front opening is closed by the open / close door.

The floor suction port for a vacuum cleaner according to claim 1 or 2, wherein a small hole communicating with the outside air is provided on a wall surface of the hollow chamber.