JP3344135B2 - Telescopic extension tube and vacuum cleaner using the same - Google Patents
Telescopic extension tube and vacuum cleaner using the sameInfo
- Publication number
- JP3344135B2 JP3344135B2 JP00548995A JP548995A JP3344135B2 JP 3344135 B2 JP3344135 B2 JP 3344135B2 JP 00548995 A JP00548995 A JP 00548995A JP 548995 A JP548995 A JP 548995A JP 3344135 B2 JP3344135 B2 JP 3344135B2
- Authority
- JP
- Japan
- Prior art keywords
- tightening
- ring
- inner cylinder
- cylinder
- extension tube
- 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.)
- Expired - Fee Related
Links
Landscapes
- Electric Vacuum Cleaner (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、伸縮自在の伸縮延長管
及びこれを用いた電気掃除機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a telescopic extension tube and a vacuum cleaner using the same.
【０００２】[0002]
【従来の技術】従来の伸縮延長管としては、掃除機の実
例をあげると実公平5−32036号公報に開示されたように
外管２ａの先端外周面、及び調節筒４の上半部内周に互
いに対応するねじ溝が形成され、調節筒４は締付ナット
として機能している。2. Description of the Related Art As an example of a conventional telescopic extension tube, as an example of a vacuum cleaner, as disclosed in Japanese Utility Model Publication No. 5-32036, an outer peripheral surface of a distal end of an outer tube 2a and an inner periphery of an upper half of an adjusting cylinder 4 are disclosed. The adjusting cylinder 4 functions as a tightening nut.
【０００３】また、内管５の外周面には軸方向の全長に
わたって縦溝８が形成され、この縦溝８の下端は内管５
の下端部における円周もしくは円弧状の横溝９に連続し
ている。上記のような構造を有する延長管は実使用時に
任意の長さにセットし調節筒４をねじこみ固定するが、
ねじこみの力が弱い場合には内管５が掃除中物に衝突し
ていると次第に設定時の長さより短くなってしまい、調
節筒４の締付力のばらつきの問題があった。A vertical groove 8 is formed on the outer peripheral surface of the inner pipe 5 over the entire length in the axial direction.
Is connected to a circumferential or arcuate lateral groove 9 at the lower end of the groove. The extension tube having the above structure is set to an arbitrary length during actual use, and the adjusting cylinder 4 is screwed and fixed.
When the screwing force is weak, if the inner tube 5 collides with the object being cleaned, the length becomes gradually shorter than the set length, and there is a problem of variation in the tightening force of the adjusting cylinder 4.
【０００４】また、現在の掃除機は強い吸込力が要求さ
れているため吸込仕事率を高めていく傾向にあり延長管
の気密保持が不可欠となってきている。気密保持のため
には外筒内部に通常軟質のパッキンを設けるが、使用中
にゴミが詰まった場合を考慮し、顧客が延長管を容易に
分解できるようにしなければならず、しかも強度を保つ
構造が要求されてきている。Further, current vacuum cleaners are required to have a high suction force, and thus tend to increase the suction power, and it is indispensable to keep the extension tube airtight. In order to maintain airtightness, a soft packing is usually provided inside the outer cylinder, but in consideration of the case where dust is clogged during use, the extension pipe must be easily disassembled by the customer and maintain strength. Structure is being required.
【０００５】[0005]
【発明が解決しようとする課題】本発明の目的は、少な
い部品点数で、しかも締付力のばらつきを解消し任意の
長さに固定することがワンタッチで操作できると共に、
延長管内にゴミが詰まった場合でも締付環に一体形成さ
れた爪部を外すだけで外管と内管を分離可能でき、強度
アップを図った延長管及びこれを用いた電気掃除機を提
供するものである。SUMMARY OF THE INVENTION It is an object of the present invention to reduce the number of parts, eliminate variations in tightening force and fix it to an arbitrary length with one touch operation.
Even if dust is clogged in the extension tube, the outer tube and the inner tube can be separated by simply removing the claw portion formed integrally with the tightening ring, and an extension tube with increased strength and a vacuum cleaner using the same are provided. Is what you do.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に本発明の特徴とするところは、手元操作部と接続され
る外筒と、該外筒の内側に摺動自在に遊挿された内筒と
を有する伸縮延長管において、前記内筒の外周面に摺動
自在に設けられた締付環を配設し、該締付環には前記外
筒に係合する爪部と、該内筒の外周面を締め付ける締付
部と、該締付部に形成された凹部とを有し、前記締付環
の外周には回転可能に配設され前記締付環の凹部に係合
する凸部を形成した締付調整部を有する操作環を配設し
たことにある。SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is characterized in that an outer cylinder connected to a hand operation unit and a slidably loosely inserted inside the outer cylinder. and the inner tube
In the telescopic extension tube having a , provided a fastening ring slidably provided on the outer peripheral surface of the inner cylinder , a claw portion that engages with the outer cylinder, a clamping unit for clamping the outer peripheral surface, and a recess formed in the portion with 該締, the convex portion on the outer periphery of the ring the tightening is to be engaged with the recess of the rotatably disposed to ring the tightening It disposed the operation ring having the formed adjuster fastening
Lies in the fact was.
【０００７】[0007]
【作用】使用する場合、初めにロック状態から操作環を
任意の角度に回転させると締付環に設けてある締付部が
内筒の外周面から外れる方向に広がり締付を解除する。
そして、使用者の選択した長さに伸ばし再度逆側に操作
環を任意の角度に回転させると、締付環に設けてある締
付部と操作環の締付調整部が接触し締付部を押動し内筒
の外周面を締付け締付部の内面の面接触によりワンタッ
チでロックさせる。締付環の締付部に凹部を設け、操作
環の締付調整部に前記締付部の凹部に係合する凸部を一
体に設け押動の軌道を常時一定化しており凹凸部の組込
により締付部の変形がなくなり確実に動作することがで
きる。In use, when the operating ring is first rotated to an arbitrary angle from the locked state, the tightening portion provided on the tightening ring spreads in a direction away from the outer peripheral surface of the inner cylinder to release the tightening.
When the operating ring is extended to the length selected by the user and the operating ring is rotated to the opposite side again at an arbitrary angle, the tightening section provided on the tightening ring and the tightening adjustment section of the operating ring come into contact with each other, and the tightening section is rotated. To lock the outer peripheral surface of the inner cylinder with one touch by the surface contact of the inner surface of the tightening and tightening portion. A concave portion is provided in the tightening portion of the tightening ring, and a convex portion that engages with the concave portion of the tightening portion is integrally provided in the tightening adjusting portion of the operating ring, so that the pressing trajectory is always constant, and a set of uneven portions is provided. As a result, the fastening portion is not deformed, and can be operated reliably.
【０００８】[0008]
【実施例】以下、本発明の一実施例を掃除機の例にて説
明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to an example of a vacuum cleaner.
【０００９】図１の１は一端にホースの手元操作部と連
結するための雄連結部２を有し、他端には円形の断面形
状をもつ外筒である。外筒１の内壁面にはレール状の縦
溝部３が軸方向側に直線的に形成されている。前記円形
の断面形状を形成した他端には係合穴４を一体に設けて
いる。In FIG. 1, reference numeral 1 denotes an outer cylinder having a male connecting portion 2 at one end for connecting to a hand operating portion of a hose and the other end having a circular cross-sectional shape. On the inner wall surface of the outer cylinder 1, a rail-shaped vertical groove portion 3 is formed linearly in the axial direction. An engagement hole 4 is integrally provided at the other end having the circular cross section.
【００１０】２２は外観形状を構成させるための外筒カ
バーであり外筒１に超音波溶着で固定されている。Reference numeral 22 denotes an outer cylinder cover for forming an external shape, which is fixed to the outer cylinder 1 by ultrasonic welding.
【００１１】５は内筒であり外筒１の内側を摺動自在に
遊挿され組み込まれている。内筒５の一端には床用吸口
や他の吸口と接続できるよう雌連結部２３を一体に設け
ており、他端には外筒１のレール状の縦溝部３内を摺動
する摺動リブ６を有したスライドピース７を接続してい
る。Reference numeral 5 denotes an inner cylinder which is slidably inserted inside the outer cylinder 1 and is incorporated therein. A female connecting portion 23 is integrally provided at one end of the inner cylinder 5 so as to be connectable to a floor suction port or another suction port, and a sliding member which slides in the rail-shaped vertical groove 3 of the outer cylinder 1 is provided at the other end. A slide piece 7 having a rib 6 is connected.
【００１２】また、外観には円筒表面よりも凸形状とし
た内筒突起４０を一体形成している。内筒突起４０は、
突起形状を内筒が縮小する方向に傾斜角度のきつい段部
とし、伸長する方向に傾斜角度の緩いテーパ面で形成
し、前記円弧形状は内筒の中心に対しどちらか一方の半
円面に形成し、かつ突起段部の最高点と半円面の外周に
接する円形状としている。この形状の利点として本実施
例のように内筒５の材料をプラスチック材とし雄，雌金
型の構成で成形し製作するような場合、金型を開いた時
に成形部品の収縮が起こるため雄金型の面にも形成する
と、内筒５を雄金型から取り出す時、内筒突起４０と雄
金型にかじりが生じ、無理に取り出すと内筒突起４０が
変形してしまうため雌金型側に形成している。これによ
り内筒突起４０の変形も無く問題なく離型できる。雌連
結部２３の上面には床用吸口や他の吸口と接続するため
に円形回動軸を中心とし回動可能なクランプ２４とバネ
２５及び、外観形状を構成させるためとクランプ２４の
回動軸を押さえる役目を兼ねた内筒カバー２６である。Further, an inner cylindrical projection 40 having a shape more convex than the cylindrical surface is integrally formed. The inner cylinder projection 40 is
The protruding shape is a step with a steep inclination angle in the direction in which the inner cylinder contracts, and is formed with a tapered surface with a gentle inclination angle in the extending direction, and the arc shape is on one of the semicircular surfaces with respect to the center of the inner cylinder. It is formed in a circular shape and is in contact with the highest point of the projection step and the outer periphery of the semicircular surface. As an advantage of this shape, in the case where the material of the inner cylinder 5 is made of a plastic material as in the present embodiment and is molded and manufactured in the configuration of a male and a female mold, the molded part shrinks when the mold is opened, so that the male part is contracted. If it is formed on the surface of the mold, when the inner cylinder 5 is taken out from the male mold, the inner cylinder projection 40 and the male mold will seize, and if the inner cylinder 5 is forcibly taken out, the inner cylinder projection 40 will be deformed. Formed on the side. As a result, the inner cylinder projection 40 can be released without any deformation without any problem. On the upper surface of the female connecting portion 23, a clamp 24 and a spring 25 rotatable about a circular rotary shaft for connection with a floor suction port or another suction port, and a rotation of the clamp 24 for forming an external shape. The inner cylinder cover 26 also serves to hold down the shaft.
【００１３】２７は収納時に掃除機本体２８に固定する
ためのパイプホルダーで外筒１に一体形成された突起部
２９に合わせて固定しており左右の移動を防止してい
る。Reference numeral 27 denotes a pipe holder for fixing to the cleaner main body 28 during storage, which is fixed in accordance with a projection 29 integrally formed with the outer cylinder 1 to prevent left and right movement.
【００１４】また、掃除機本体２８に設けられたパイプ
ホルダー挿入部（図示せず）に挿入する挿入部３３の先
端形状を略円弧形状とし、内筒５を最大に伸長した状態
で内筒５と外筒１がラップする区間Ｌの外筒１外周を覆
い、パイプホルダー２７は内筒５と外筒１がラップする
区間Ｌ上に位置させている。Further, the distal end of an insertion portion 33 inserted into a pipe holder insertion portion (not shown) provided in the cleaner body 28 has a substantially arc shape, and the inner cylinder 5 is extended in the maximum extended state. The outer cylinder 1 covers the outer periphery of the outer cylinder 1 in a section L where the outer cylinder 1 overlaps, and the pipe holder 27 is located on the section L where the inner cylinder 5 and the outer cylinder 1 overlap.
【００１５】伸縮延長管３４で強度上問題となるのは最
大に伸長し略中央部に繰返し曲げ荷重が加わった場合に
外筒１に亀裂や破損を生じる。そのためパイプホルダー
２７を補強部材としても役目を兼ね前記位置に配置して
いる。The problem with the strength of the telescopic extension tube 34 is that the outer tube 1 is cracked or damaged when the tube is elongated to the maximum and a bending load is repeatedly applied to a substantially central portion. Therefore, the pipe holder 27 is arranged at the above-mentioned position also serving as a reinforcing member.
【００１６】１０はパッキンオサエで外筒１と内筒５の
間にガタツキを有すると、繰返し曲げ荷重が加わった時
破損を生じるため、ガタツキをなくすことを第一の目的
とし、さらには外筒１にレール状の縦溝部３の前方に円
形の断面形状を形成した箇所に空気の漏れを防ぐための
気密パッキン８を配置しているので気密パッキン８のず
れ防止も兼ねるようパッキンリブ９を一体形成してい
る。[0016] The reference numeral 10 designates a packing seal, which has a backlash between the outer cylinder 1 and the inner cylinder 5 and causes breakage when a repeated bending load is applied. Therefore, the first object is to eliminate the backlash. In FIG. 1, an airtight packing 8 for preventing air leakage is disposed at a place where a circular cross-sectional shape is formed in front of the rail-shaped vertical groove portion 3, so that a packing rib 9 is also integrated so as to also prevent displacement of the airtight packing 8. Has formed.
【００１７】１５は締付環で内筒５の外周面を締め付け
るための３個からなる円弧状の締付部Ａ１１，締付部Ｂ
１２，締付部Ｃ１３と外筒１に係合固定する爪部１４を
一体に形成している。使用中にゴミが詰まった場合、顧
客が爪部１４を外すことにより外筒１と内筒５を容易に
分解でき気密パッキン８も同時に取り外す構造となって
いるので顧客が再度組立する場合でも容易に取り付ける
ことができる。Reference numeral 15 denotes a fastening ring which is an arc-shaped fastening portion A11 and a fastening portion B, each of which comprises three fastening portions for fastening the outer peripheral surface of the inner cylinder 5.
12, a fastening portion C13 and a claw portion 14 for engaging and fixing to the outer cylinder 1 are formed integrally. If dust is clogged during use, the outer cylinder 1 and the inner cylinder 5 can be easily disassembled by removing the claw portion 14 and the airtight packing 8 can be removed at the same time. Can be attached to
【００１８】本実施例では円弧状の締付部Ａ１１，締付
部Ｂ１２，締付部Ｃ１３を３つ一体に形成しており外表
面に凹部２０を形成している。円弧状の締付部Ａ１１，
締付部Ｂ１２，締付部Ｃ１３は支点リブ３８を支点とし
ており各々内側に撓むようになっている。爪部１４は外
筒１の端部に設けられた係合穴４に係合され爪部１４を
押すことにより取り外せる。In this embodiment, three arc-shaped fastening portions A11, B12 and C13 are integrally formed, and a concave portion 20 is formed on the outer surface. Arc-shaped fastening part A11,
The fastening portion B12 and the fastening portion C13 have a fulcrum rib 38 as a fulcrum, and are bent inward. The claw portion 14 is engaged with the engagement hole 4 provided at the end of the outer cylinder 1 and can be removed by pushing the claw portion 14.
【００１９】１９は操作環であり外筒１と共に延長管外
観面を構成し内壁には締付環１５の締付部Ａ１１，締付
部Ｂ１２，締付部Ｃ１３と同一円弧で形成され同じ３個
数からなる締付調整部Ａ１６，締付調整部Ｂ１７，締付
調整部Ｃ１８を一体に形成している。３０はヌケドメリ
ングであり操作環１９の位置規定させるものである。操
作環１９の内側には締付環１５の端部に設けてある引掛
部３１に接続できるよう爪部Ｂ３２を一体に形成してい
る。Reference numeral 19 denotes an operating ring, which constitutes an external surface of the extension tube together with the outer cylinder 1, and is formed on the inner wall with the same arc as the tightening portions A11, B12, and C13 of the tightening ring 15 and has the same shape as 3. The tightening adjusting section A16, the tightening adjusting section B17, and the tightening adjusting section C18 are integrally formed. Numeral 30 designates the position of the operation ring 19. Inside the operation ring 19, a claw portion B32 is integrally formed so as to be connectable to a hook portion 31 provided at an end of the tightening ring 15.
【００２０】次に、動作について説明をする。Next, the operation will be described.
【００２１】延長管を使用する場合、初めに図９のロッ
ク状態から操作環１９を任意の角度に回転させると図１
０のように締付環１５に設けてある締付部Ａ１１，締付
部Ｂ１２，締付部Ｃ１３が内筒５の外周面から外れる方
向に広がり締付を解除する。そして、使用者の選択した
長さに伸ばし再度逆側に操作環１９を任意の角度に回転
させると、締付環１５に設けてある締付部Ａ１１，締付
部Ｂ１２，締付部Ｃ１３と操作環１９の締付調整部Ａ１
６，締付調整部Ｂ１７，締付調整部Ｃ１８が接触し締付
部Ａ１１，締付部Ｂ１２，締付部Ｃ１３を図８に示すよ
うに押動し内筒５の外周面を締付け締付部Ａ１１，締付
部Ｂ１２，締付部Ｃ１３の内面の面接触によりワンタッ
チでロックさせる。締付環１５の締付部Ａ１１，締付部
Ｂ12，締付部Ｃ１３に凹部２０を設け、操作環１９の締
付調整部Ａ１６，締付調整部Ｂ１７，締付調整部Ｃ１８
に前記締付部Ａ１１，締付部Ｂ１２，締付部Ｃ１３の凹
部２０に係合する凸部２１を一体に設け押動の軌道を常
時一定化しており凹凸部の組込により締付部Ａ１１，締
付部Ｂ１２，締付部Ｃ１３の変形がなくなり確実に動作
することができる。When using the extension tube, first, when the operation ring 19 is rotated to an arbitrary angle from the locked state of FIG. 9, FIG.
As shown at 0, the tightening portion A11, the tightening portion B12, and the tightening portion C13 provided on the tightening ring 15 spread in the direction away from the outer peripheral surface of the inner cylinder 5, and the tightening is released. Then, when the operating ring 19 is extended to the length selected by the user and the operating ring 19 is rotated again to the opposite side by an arbitrary angle, the tightening portions A11, B12, and C13 provided on the tightening ring 15 Tightening adjustment part A1 of operation ring 19
6. The tightening adjusting section B17 and the tightening adjusting section C18 come into contact with each other, and push the tightening sections A11, B12 and C13 as shown in FIG. 8 to tighten the outer peripheral surface of the inner cylinder 5. The inner surfaces of the parts A11, B12, and C13 are brought into contact with each other to be locked by one touch. A recess 20 is provided in the tightening portion A11, the tightening portion B12, and the tightening portion C13 of the tightening ring 15, and the tightening adjusting portion A16, the tightening adjusting portion B17, and the tightening adjusting portion C18 of the operating ring 19 are provided.
The protrusions 21 engaging the concave portions 20 of the tightening portions A11, B12, and C13 are integrally provided to constantly keep the pressing trajectory constant. The deformation of the tightening portions B12 and C13 is eliminated, and the operation can be reliably performed.
【００２２】図４〜図１２にて説明すると、図５のよう
に凹部２０が無い場合、締付部Ａ11，締付部Ｂ１２，締
付部Ｃ１３が支点リブ３８で支えられているがプラスチ
ック等の材料を使用すると左右上下に変形し、変形した
状態で押動するため締付部Ａ１１，締付部Ｂ１２，締付
部Ｃ１３の内面が内筒５の外周面と面接触できない。し
かしながら、図４に示すように凹部２０を設けたことに
より締付部Ａ１１，締付部Ｂ１２，締付部Ｃ１３をはめ
合い構造となるため押動する軌道を一定にすることがで
きる。また、凹部２０，凸部２１を設けた利点として
は、操作環１９に凹部２０が無い場合締付部Ａ１１，締
付部Ｂ１２，締付部Ｃ１３の内面の押動する面積が図５
に示す一点斜線部だけとなってしまい図８に示すように
内筒５の形状が略三角形状に変化しまうので接触面積が
少なく確実にロックできないが、凹部２０，凸部２１を
設けると図７では操作環１９を略３０度回転させた状態
を示すが凸部２１が支点リブ３８の周囲を押動し略全面
を押しつけることができ内筒５の全周を押さえることが
できる。Referring to FIGS. 4 to 12, when there is no concave portion 20 as shown in FIG. 5, the tightening portions A11, B12, and C13 are supported by the fulcrum ribs 38, but plastics or the like are used. When this material is used, it is deformed right and left and up and down, and is pushed in the deformed state, so that the inner surfaces of the tightening portions A11, B12 and C13 cannot make surface contact with the outer peripheral surface of the inner cylinder 5. However, the provision of the concave portion 20 as shown in FIG. 4 results in a structure in which the fastening portions A11, B12, and C13 are fitted to each other, so that the trajectory for pushing can be made constant. The advantage of providing the concave portion 20 and the convex portion 21 is that when the operating ring 19 has no concave portion 20, the area of the inner surface of the tightening portion A11, the tightening portion B12, and the tightening portion C13 to be pushed is reduced as shown in FIG.
8 and the shape of the inner cylinder 5 changes to a substantially triangular shape as shown in FIG. 8, so that the contact area is small and locking is not possible. However, if the concave portion 20 and the convex portion 21 are provided, FIG. In this state, the operation ring 19 is rotated by approximately 30 degrees. However, the convex portion 21 pushes around the fulcrum rib 38 to press almost the entire surface, so that the entire circumference of the inner cylinder 5 can be pressed.
【００２３】図６では操作環１９を略６０度回転させた
状態を示し回転角度を変えても内筒５のほぼ全周を押さ
えることが可能である。また、本実施例では、図１６，
図１７，図１８に示す内筒５の外周に内筒突起４０を一
体形成しており実使用状態で掃除しているときに床用吸
口３７を壁などに衝突させると内筒５が設定長さより短
くなる場合があるため図１２のように締付部Ａ１１，締
付部Ｂ１２，締付部Ｃ１３に突きあて内筒５の移動を防
止している。凹部２０が無い場合、締付部Ａ１１，締付
部Ｂ１２，締付部Ｃ１３が図１１のように左右上下に変
形と内筒突起４０を乗り越えてしまい内筒５の移動が起
こる。FIG. 6 shows a state in which the operating ring 19 is rotated by approximately 60 degrees, and it is possible to hold almost the entire circumference of the inner cylinder 5 even when the rotation angle is changed. In this embodiment, FIG.
An inner cylinder projection 40 is integrally formed on the outer periphery of the inner cylinder 5 shown in FIGS. 17 and 18. When the floor suction port 37 collides with a wall or the like during cleaning in an actual use state, the inner cylinder 5 has a set length. 12, the inner cylinder 5 is prevented from moving by abutting against the fastening portions A11, B12 and C13 as shown in FIG. If there is no concave portion 20, the fastening portion A11, the fastening portion B12, and the fastening portion C13 are deformed left and right and up and down as shown in FIG.
【００２４】さらに内筒５の外周を円形のストレートで
形成した場合締付環１５とのガタツキが無くなるためヌ
ケドメリング３０の部品を低減することができるなどの
さまざまな利点を得ることができる。Further, when the outer circumference of the inner cylinder 5 is formed as a circular straight, there is no backlash with the tightening ring 15, so that various advantages such as a reduction in the number of parts of the blanking ring 30 can be obtained.
【００２５】また、内筒５の端部には外筒１のレール状
の縦溝部３内を摺動する摺動リブを有したスライドピー
ス７を設けているため内筒５に縦溝を形成することはな
く気密パッキン８が常時内筒５に接触しているので高い
気密性を保つことができる。Further, at the end of the inner cylinder 5, there is provided a slide piece 7 having a sliding rib which slides in the rail-shaped vertical groove 3 of the outer cylinder 1, so that a vertical groove is formed in the inner cylinder 5. Since the airtight packing 8 is always in contact with the inner cylinder 5, high airtightness can be maintained.
【００２６】[0026]
【発明の効果】本発明によれば、少ない部品点数で、し
かも締付力のばらつきを解消し任意の長さに固定するこ
とがワンタッチで操作できると共に、延長管内にゴミが
詰まった場合でも締付環に一体形成された爪部を外すだ
けで外管と内管を分離可能でき、強度をアップを図った
延長管を提供できる。According to the present invention, it is possible to operate with a small number of parts, fix a variation in tightening force and fix to an arbitrary length with one touch, and even if dust is clogged in the extension pipe, the tightening is performed. The outer tube and the inner tube can be separated only by removing the claw portion formed integrally with the ring, and an extension tube with increased strength can be provided.
【図１】本発明の一実施例に係る延長管最短縮状態時を
示す図である。FIG. 1 is a view showing a state in which an extension pipe according to an embodiment of the present invention is in a shortest state.
【図２】本発明の一実施例に係る延長管最大伸長状態時
を示す図である。FIG. 2 is a view showing an extended pipe in a maximum extended state according to an embodiment of the present invention.
【図３】本発明の一実施例における部分拡大図を示す図
である。FIG. 3 is a diagram showing a partially enlarged view in one embodiment of the present invention.
【図４】締付環に凹部を設けた状態の平面図である。FIG. 4 is a plan view showing a state in which a concave portion is provided in the tightening ring.
【図５】締付環の凹部を設けない状態の平面図である。FIG. 5 is a plan view showing a state in which a concave portion of a fastening ring is not provided.
【図６】締付環の操作環を略６０度回転させた押動箇所
の状態を示す図である。FIG. 6 is a view showing a state of a pressing position where the operation ring of the tightening ring is rotated substantially 60 degrees.
【図７】締付環の操作環を略３０度回転させた押動箇所
の状態を示す図である。FIG. 7 is a view showing a state of a pressing position where the operation ring of the tightening ring is rotated by approximately 30 degrees.
【図８】締付部の押動状態を示す図である。FIG. 8 is a diagram illustrating a pushing state of a fastening portion.
【図９】操作環と締付環の組立状態を示す図である。FIG. 9 is a view showing an assembled state of an operation ring and a tightening ring.
【図１０】操作環と締付環の組立状態を示す図である。FIG. 10 is a view showing an assembled state of an operation ring and a tightening ring.
【図１１】締付環に凹部を設けた状態の締付環と内筒の
組立状態図を示す図である。FIG. 11 is a diagram showing an assembled state diagram of the tightening ring and the inner cylinder in a state where a concave portion is provided in the tightening ring.
【図１２】締付環に凹部を設けない状態の締付環と内筒
の組立状態図を示す図である。FIG. 12 is a diagram showing an assembled state diagram of the tightening ring and the inner cylinder in a state where no concave portion is provided in the tightening ring.
【図１３】操作環の側面図を示す図である。FIG. 13 is a diagram showing a side view of the operation ring.
【図１４】操作環の断面図を示す図である。FIG. 14 is a diagram showing a cross-sectional view of an operation ring.
【図１５】図２の断面Ａ−Ａを示す図である。FIG. 15 is a view showing a cross section AA of FIG. 2;
【図１６】内筒の外観形状を示す図である。FIG. 16 is a diagram showing an external shape of an inner cylinder.
【図１７】内筒突起４０の拡大図を示す図である。17 is an enlarged view of the inner cylinder projection 40. FIG.
【図１８】図１６のＣ−Ｃ断面図を示す図である。FIG. 18 is a diagram showing a cross-sectional view taken along the line CC of FIG. 16;
【図１９】伸縮延長管の傾斜図を示す図である。FIG. 19 is a diagram showing an inclined view of the telescopic extension tube.
【図２０】掃除機本体の実使用状態図を示す図である。FIG. 20 is a view showing an actual use state diagram of the cleaner body.
１…外筒、２…雄連結部、３…溝部、４…係合穴、５…
内筒、６…摺動リブ、７…スライドピース、８…気密パ
ッキン、９…パッキンリブ、１０…パッキンオサエ、１
１…締付部Ａ、１２…締付部Ｂ、１３…締付部Ｃ、１４
…爪部、１５…締付環、１６…締付調整部Ａ、１７…締
付調整部Ｂ、１８…締付調整部Ｃ、１９…操作環、２０
…凹部、２１…凸部、２２…外筒カバー、２３…雌連結
部、２４…クランプ、２５…バネ、２６…内筒カバー、
２７…パイプホルダー、２８…掃除機本体、２９…突起
部、３０…ヌケドメリング、３１…引掛部、３２…爪部
Ｂ、３３…挿入部、３４…伸縮延長管、３５…ホース、
３６…手元操作部、３７…床用吸口、３８…支点リブ、
３９…ネジ、４０…内筒突起。DESCRIPTION OF SYMBOLS 1 ... outer cylinder, 2 ... male connection part, 3 ... groove part, 4 ... engagement hole, 5 ...
Inner cylinder, 6: sliding rib, 7: slide piece, 8: airtight packing, 9: packing rib, 10: packing seal, 1
DESCRIPTION OF SYMBOLS 1 ... Tightening part A, 12 ... Tightening part B, 13 ... Tightening part C, 14
... Claws, 15 ... Tightening ring, 16 ... Tightening adjustment part A, 17 ... Tightening adjustment part B, 18 ... Tightening adjustment part C, 19 ... Operation ring, 20
... recess, 21 ... convex, 22 ... outer cylinder cover, 23 ... female connection part, 24 ... clamp, 25 ... spring, 26 ... inner cylinder cover,
27: Pipe holder, 28: Vacuum cleaner main body, 29: Projection, 30: Neck melting, 31: Hook, 32: Claw B, 33: Insertion, 34: Telescopic extension tube, 35: Hose,
36 ... hand operation part, 37 ... floor suction opening, 38 ... fulcrum rib,
39: screw, 40: inner cylinder projection.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 成彦 茨城県日立市東多賀町一丁目１番１号 株式会社 日立製作所 電化機器事業部 多賀本部内 (56)参考文献 実公 平５−32036（ＪＰ，Ｙ２) (58)調査した分野(Int.Cl.7，ＤＢ名) A47L 9/24 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shigehiko Suzuki 1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Pref. Hitachi, Ltd. Electrical Equipment Division, Taga Headquarters (56) Reference Jikken Hei 5-32036 (JP , Y2) (58) Field surveyed (Int. Cl. 7 , DB name) A47L 9/24
Claims (2)
内側に摺動自在に遊挿された内筒とを有する伸縮延長管
において、 前記内筒の外周面に摺動自在に設けられた締付環を配設
し、 該締付環には 前記外筒に係合する爪部と、該内筒の外周
面を締め付ける締付部と、該締付部に形成された凹部と
を有し、 前記 締付環の外周には回転可能に配設され前記締付環の
凹部に係合する凸部を形成した締付調整部を有する操作
環を配設したことを特徴とする伸縮延長管。1. A telescopic extension tube having an outer cylinder connected to a hand operation unit and an inner cylinder slidably inserted inside the outer cylinder, wherein the outer cylinder is slidable on an outer peripheral surface of the inner cylinder. The fastening ring provided in
And a pawl portion to該締with ring for engaging the outer cylinder, and a tightening portion for tightening the outer circumferential surface of the inner cylinder, and a recess formed in the portion with該締
The a, the outer periphery of the ring the tightening is characterized in that arranged the operation ring having a clamping adjustment portion forming a convex portion engaged with the recess of the fastening ring rotatably disposed Telescopic extension tube.
吸口が接続される延長管を備えた電気掃除機において、 前記延長管は手元操作部と接続される外筒と、該外筒の
内側に摺動自在に遊挿された内筒とを有し、 前記内筒の外周面に摺動自在に設けられた締付環を配設
し、 該締付環には 前記外筒に係合する爪部と、該内筒の外周
面を締め付ける締付部と、該締付部に形成された凹部と
を有し、 前記 締付環の外周には回転可能に配設され前記締付環の
凹部に係合する凸部を形成した締付調整部を有する操作
環を配設したことを特徴とする電気掃除機。2. A vacuum cleaner comprising an extension tube having one end connected to a hand operation unit and the other end connected to a suction port, wherein the extension tube has an outer cylinder connected to the hand operation unit; An inner cylinder slidably loosely inserted inside the outer cylinder, and a fastening ring slidably provided on an outer peripheral surface of the inner cylinder.
And a pawl portion to該締with ring for engaging the outer cylinder, and a tightening portion for tightening the outer circumferential surface of the inner cylinder, and a recess formed in the portion with該締
The a, the outer periphery of the ring the tightening is characterized in that arranged the operation ring having a clamping adjustment portion forming a convex portion engaged with the recess of the fastening ring rotatably disposed Vacuum cleaner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00548995A JP3344135B2 (en) | 1995-01-18 | 1995-01-18 | Telescopic extension tube and vacuum cleaner using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP00548995A JP3344135B2 (en) | 1995-01-18 | 1995-01-18 | Telescopic extension tube and vacuum cleaner using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08191785A JPH08191785A (en) | 1996-07-30 |
| JP3344135B2 true JP3344135B2 (en) | 2002-11-11 |
Family
ID=11612668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP00548995A Expired - Fee Related JP3344135B2 (en) | 1995-01-18 | 1995-01-18 | Telescopic extension tube and vacuum cleaner using the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3344135B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10120688A1 (en) * | 2001-04-27 | 2002-11-07 | Bsh Bosch Siemens Hausgeraete | Pipe connection for a suction pipe of a vacuum cleaner |
-
1995
- 1995-01-18 JP JP00548995A patent/JP3344135B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08191785A (en) | 1996-07-30 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |