JPS5919816Y2 - vaporizer packing - Google Patents

Description

【考案の詳細な説明】 特に単筒ガソリンエンジンの気化器は一般に燃料の吹き
返しが激しい性質があり、これによる種々な二次的な欠
点を露呈するものである。[Detailed Description of the Invention] Particularly, the carburetor of a single-cylinder gasoline engine generally has the property of violently blowing back fuel, and this exposes various secondary drawbacks.

本案はこれら欠点の改善とバッキング機能の多用途向き
向上など複数の特徴を一部品に纒めるようにして、部品
点数の減少と価格の低減、組立時の省力に貢献しようと
するものである。This proposal aims to improve these shortcomings and combine multiple features into a single component, such as improving the backing function for multiple uses, thereby contributing to a reduction in the number of parts, lower prices, and labor savings during assembly. .

以下実施例について詳細な説明を行う。Examples will be described in detail below.

第１図に本実施例気化器バッキングを気化器に装着した
状態の縦断面を 第２図にバッキング単体の平面図を 第３図にチェンソーに本案を実施した例の部分断面図を
示す。FIG. 1 shows a vertical cross section of the carburetor backing of this embodiment attached to a carburetor, FIG. 2 shows a plan view of the backing alone, and FIG. 3 shows a partial sectional view of an example in which the present invention is applied to a chain saw.

本考案によるバッキング１は、ゴム質等の高分子化合物
による平板状パツキン材の周縁に、気密用の舌片状周縁
２を環状形に形成し、中央部に気化器７の吸入口に対応
する混合気通孔３を設け、その両側に気化器７に取着す
る為の取着ボルト用７Ｌ６． ６を設けている。The backing 1 according to the present invention has an airtight tongue-shaped periphery 2 formed in an annular shape on the periphery of a flat packing material made of a polymeric compound such as rubber, and has a central part corresponding to an inlet of a vaporizer 7. 7L6 for mounting bolts for attaching to the carburetor 7 on both sides of the mixing vent 3. There are 6.

また、舌片状周縁２を設けた側の混合気通孔３の周囲よ
り複数の脚４を立ち上がらせて、その上端部に吹き返し
防止板としての偏平円錐体５を混合気通孔３に適当距離
を保って対面して下向きに設ける。In addition, a plurality of legs 4 are made to stand up from the periphery of the mixing vent 3 on the side where the tongue-shaped peripheral edge 2 is provided, and a flat conical body 5 as a blowback prevention plate is attached to the upper end of the leg 4 as appropriate for the mixing vent 3. Place them facing downward while maintaining a distance.

以上の如き構成の物を、ゴム質等の材料により一体に成
形せしめて、バッキング、吹き返し防止板及びこれらの
取着用部材を一個の部品として一体に成形せしめた事を
、本案の特徴要件としている。The characteristic requirement of this project is that the above-mentioned structure is integrally molded from a material such as rubber, and the backing, blowback prevention plate, and members for attaching these are integrally molded as one part. .

次に、本考案によるバッキングをチェンソーに使用した
場合の実施例につき説明する。Next, an example in which the backing according to the present invention is used in a chain saw will be described.

第３図に示す実施例で明らかなように、チェンソーはチ
ェン駆動装置と一体に連結したエンジン部を、前後バン
ドル及び燃料、油各タンクと気化器７を含む枠体の内空
部に防振具を介して取着している。As is clear from the embodiment shown in FIG. 3, the chain saw has an engine unit that is integrally connected to a chain drive device mounted in a vibration-proof inner space of a frame body that includes front and rear bundles, fuel and oil tanks, and a carburetor 7. It is attached via a tool.

かくして気化器７はエンジンとは、可撓管を介して枠体
に支持されていて、気化器７用の外枠９の内部に収容さ
れ、この外枠９は一部が開口１０シていて外気と連通し
ている。Thus, the carburetor 7 is connected to the engine by being supported by a frame body through a flexible tube, and is housed inside an outer frame 9 for the carburetor 7, and this outer frame 9 is partially open with an opening 10. It communicates with the outside air.

外枠９の上部開口部は気化器７の上面と略一致した平面
を作り、該平面部にエヤークリーナ８を配設して区画し
外気を下方から通過せしめてエヤークリーナ８の下面で
濾過作用を果さしめている。The upper opening of the outer frame 9 forms a plane that substantially coincides with the upper surface of the carburetor 7, and the air cleaner 8 is arranged and partitioned in the plane, allowing outside air to pass through from below, and the lower surface of the air cleaner 8 acts as a filter. I am accomplishing this.

このエヤークリーナ８は栓蓋１１の環状座部１２、１２
で挟持されていて、栓蓋１１との間に外気と区画された
清浄な空気室を形威し、気化器７の吸入口と連通してい
る。This air cleaner 8 has an annular seat portion 12, 12 of a stopper lid 11.
A clean air chamber separated from the outside air is formed between the stopper lid 11 and the inlet of the vaporizer 7.

この気化器吸入口には、本案バッキング１が気化器７の
セットポル）１３，１３によって気化器７と一体に取着
されている。The backing 1 of the present invention is integrally attached to the carburetor 7 at the carburetor suction port by means of set poles 13, 13 of the carburetor 7.

かくて、本案バッキング１は中央部の混合気通孔３が気
化器７の吸入口と一致し、この吸入口に対面して偏平円
錐体５ （以下吹返し防止板と言う）が配設される。Thus, in the backing 1 of the present invention, the mixture vent hole 3 in the center coincides with the suction port of the carburetor 7, and the flat cone body 5 (hereinafter referred to as blowback prevention plate) is disposed facing this suction port. Ru.

この吹返し防止板は平板のバッキング材と一体であるか
ら、パツキンの配設と同時構成され手数と部品を省略す
ることができている。Since the blowback prevention plate is integrated with the flat backing material, it can be constructed at the same time as the packing, and the number of steps and parts can be omitted.

吹き返し防止の効果は言うまでもないが、板が偏平円錐
体をなすと共に倒立している関係で下方にあたる気化器
の吸入口に向けて、吹き返しの液滴を落下せしめ得るの
で、飛散による汚染を防止できる特徴がある。Needless to say, it is effective in preventing blowback, but since the plate forms a flat cone and is inverted, the droplets of blowback can fall toward the inlet of the vaporizer at the bottom, which prevents contamination due to scattering. It has characteristics.

次でパツキン材の周縁の舌片状の構造が、第１図に示す
如き配設をなしエヤークリーナの周縁と内接して密着し
気密を保つことができると共に、格別に押え付ける手段
を要せずエヤークリーナの剛性で充分に気密を保つ作用
効果を有せしめる特徴がある。Next, the tongue-like structure on the periphery of the packing material is arranged as shown in Fig. 1, so that it can be in contact with the periphery of the air cleaner to maintain airtightness, and it does not require special means to hold it down. The rigidity of the air cleaner has the advantage of maintaining sufficient airtightness.

この事柄は言うまでもなく取着上の手段を簡素化したも
のである。This, of course, simplifies the mounting means.

かくて本案パツキン材は総体がゴム質でできているので
弾力性による気密性と振動性による補助効果を得ること
ができる。Thus, since the packing material of the present invention is made entirely of rubber, it is possible to obtain airtightness due to elasticity and auxiliary effects due to vibration.

例えば吹返し防止板はエンジンの振動等で微振動をする
ために耐着した液滴を容易に振り離し気化器の吸入口に
回収せしめ得られる。For example, a blowback prevention plate can be obtained by easily shaking off droplets that adhere to the liquid droplets due to slight vibrations caused by engine vibrations, etc., and collecting them at the intake port of the carburetor.

以上詳記する如く、本案パツキン材が総形一体に形成し
たことによって多目的の作用効果を備え、実用上の実施
面で部品点数の減少、取り扱い上の省力に多大に貢献す
ることができる。As described in detail above, since the packing material of the present invention is integrally formed, it has multipurpose functions and effects, and can greatly contribute to reducing the number of parts and saving labor in handling in practical implementation.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図実施例気化器バッキングを気化器に装着した状態
の縦断面。 第２図バッキング単体の平面図。 第３図チェンソーに本案を実施した例の部分断面図。 １・・・・・・平板形バッキング、２・・・・・・舌片
状周縁、３・・・・・・混合気通孔、４・・・・・・脚
、５・・・・・・偏平円錐体。FIG. 1 is a vertical cross-section of the carburetor backing of the embodiment attached to the carburetor. Figure 2 is a plan view of the backing alone. FIG. 3 is a partial sectional view of an example in which the present invention is applied to a chainsaw. 1... Flat backing, 2... Tongue-shaped periphery, 3... Mixed ventilation holes, 4... Legs, 5... - Oblate cone.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 一側へ突出する気密用の舌片状周縁２を環状形に形成し
た平板形バッキング１とし、中央部に混合気通孔３を設
け、前記舌片状周縁２側と同じ側に、前記混合気通孔３
の周囲に複数の脚４を設けて倒立偏平円錐体５を、混合
気通孔３に適当距離を保って対面して支架した総体がゴ
ム質等の高分子化合物で作られた気化器のバッキング。A flat backing 1 is formed with an annular tongue-shaped peripheral edge 2 for airtightness protruding to one side, a mixing ventilation hole 3 is provided in the center, and the mixing vent hole 3 is provided on the same side as the tongue-shaped peripheral edge 2. Air vent 3
A backing for a vaporizer, the entire body of which is made of a polymeric compound such as rubber, in which a plurality of legs 4 are provided around the inverted flat cone 5 and is supported facing the mixing vent 3 at an appropriate distance. .