JPH08143056A - Cap for fuel tank - Google Patents

Cap for fuel tank

Info

Publication number
JPH08143056A
JPH08143056A JP6280882A JP28088294A JPH08143056A JP H08143056 A JPH08143056 A JP H08143056A JP 6280882 A JP6280882 A JP 6280882A JP 28088294 A JP28088294 A JP 28088294A JP H08143056 A JPH08143056 A JP H08143056A
Authority
JP
Japan
Prior art keywords
engagement
engaging
cap
rotor
guide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6280882A
Other languages
Japanese (ja)
Other versions
JP3358345B2 (en
Inventor
Hiroyuki Hagano
博之 波賀野
Masayuki Nakagawa
正幸 中川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyoda Gosei Co Ltd
Original Assignee
Toyoda Gosei Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyoda Gosei Co Ltd filed Critical Toyoda Gosei Co Ltd
Priority to JP28088294A priority Critical patent/JP3358345B2/en
Publication of JPH08143056A publication Critical patent/JPH08143056A/en
Application granted granted Critical
Publication of JP3358345B2 publication Critical patent/JP3358345B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Closures For Containers (AREA)

Abstract

PURPOSE: To provide a cap for fuel tank of which the installing/removing operatability to a filler neck is favorable, and does not require a storage space for a knob cover, etc. CONSTITUTION: A title cap is fitted on a filler neck 11 of a fuel tank. The cap consists of a cylindrical sealing case 17 where a valve mechanism (internal pressure-regulating valve) 15 is built in, engaging rotor 19 which is fitted on the sealing case 17 under such a condition wherein a spring to impart a sealing force can be energized, and upper plate 21 which is fitted in the upper end of the engaging rotor 19. The engaging rotor 19 is depressed by the upper plate 21 until a protruding part 31 for engagement being formed on the filler neck 11 is engaged with a recessed part 37 for guiding/engagement through a guide groove for engagement/disengagement which is formed on the engaging rotor 19, and when the depressing is released, the protruding part 31 for engagement is engaged by rotating with an engaging recessed part 33 to prevent a slipping off from generating, by a spring force, or can be led out by rotating to the guide groove for engagement/disengagement.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、燃料タンクのフィラー
ネックに装着される新規な機構の燃料タンク用キャップ
に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel tank cap having a novel mechanism attached to a filler neck of a fuel tank.

【0002】なお、本明細書では、説明の都合上、特に
断らない限り、係合凸部がフィラーネック側に形成され
て固定状態で、係合凸部が相対移動する場合を基準とし
て説明してある。
In the present specification, for convenience of explanation, unless otherwise specified, the case where the engaging projection is formed on the filler neck side and is fixed and the engaging projection is relatively moved will be described as a reference. There is.

【0003】[0003]

【従来の技術】自動車の燃料タンク用キャップのフィラ
ーネックへの嵌着は、ねじ込み式により行っていた。
(実公昭63−13169・13170号公報等参照)
そして、当該キャップの嵌着(ねじ込み)完了は、約
1.5回転で行なえる様になっているが、ねじ込み完了
を担保するため、一定トルク以上になってラチエット機
構によりつまみカバー体が空回りして”カチカチ”音が
発生するまで回していた。
2. Description of the Related Art A cap for a fuel tank of an automobile has been screwed into a filler neck.
(See Japanese Utility Model Publication No. 63-13169 / 13170, etc.)
The cap can be fitted (screwed) in about 1.5 rotations. However, in order to ensure the completion of screwing, when the torque exceeds a certain level, the ratchet mechanism causes the knob cover body to idle. I was turning it until I heard a clicking sound.

【0004】[0004]

【発明が解決しようとする課題】しかし、上記方式のキ
ャップの場合、フィラーネックへの装着・取り外しに際
して、ねじ込み・ねじ緩めに回転作業を必要とし、それ
らの作業性が良好とはいえなかった。特に、ねじ込み
時、空回りするまで回転させる必要があり、回転数が多
い。また、つまみカバー体がフィラーネックの開口端よ
り突出するため、つまみカバー体の収納空間を車体に設
ける必要がある。
However, in the case of the cap of the above-mentioned method, when mounting / removing to / from the filler neck, it is necessary to rotate the screw for screwing in / loosening the screw, and the workability thereof cannot be said to be good. In particular, when screwing in, it is necessary to rotate the screw until it spins, and the number of rotations is high. Further, since the knob cover body projects from the opening end of the filler neck, it is necessary to provide a storage space for the knob cover body in the vehicle body.

【0005】本発明は、上記にかんがみて、フィラーネ
ックへの装着・取り外し作業性が良好で、つまみカバー
体等の収納空間が不要な燃料タンク用キャップを提供す
ることを目的とする。
In view of the above, it is an object of the present invention to provide a fuel tank cap which has good workability for mounting / removing on / from a filler neck and does not require a storage space such as a knob cover.

【0006】[0006]

【課題を解決するための手段】本発明の燃料タンク用キ
ャップは、上記課題を下記構成により解決するものであ
る。
The fuel tank cap of the present invention solves the above problems by the following constitution.

【0007】燃料タンクのフィラーネックに装着される
キャップであって、弁機構が内蔵された筒状のシールケ
ースと、該シールケースに上方へばね付勢可能な状態で
外嵌される係合ロータと、係合ロータの上端に嵌着され
るアッパプレートとからなり、シールケースは、フィラ
ーネックのキャップ嵌着拡径部の底部に形成された環状
シール座に圧接するシールフランジ部を備え、フィラー
ネック内周面と係合ロータ外周面との間には、複数対の
係合凸部及び抜止め係合凹部が形成され、該抜止め係合
凹部の形成側面には、該抜止め係合凹部を挟んで着脱案
内溝が形成されるとともに、該抜止め係合凹部の上下方
向対向位置に案内係合凹部が形成され、前記係合ロータ
をアッパプレートを介して、係合凸部が着脱案内溝を経
て案内係合凹部と係合するまで押圧して押圧を解除する
ことにより、係合凸部がばね力により抜止め係合凹部に
回動係合又は着脱案内溝に回動導出可能とされている、
ことを特徴とする。
A cap mounted on a filler neck of a fuel tank, a cylindrical seal case having a built-in valve mechanism, and an engagement rotor externally fitted to the seal case in a state capable of being biased upward by a spring. And an upper plate fitted to the upper end of the engagement rotor, and the seal case includes a seal flange portion press-contacting an annular seal seat formed on the bottom of the cap fitting expanded portion of the filler neck, and the filler. A plurality of pairs of engaging projections and retaining engagement recesses are formed between the inner peripheral surface of the neck and the outer peripheral surface of the engaging rotor, and the retaining engagement is formed on the side surface of the retaining engagement recesses. An attachment / detachment guide groove is formed across the recess, and a guide engagement recess is formed at a position vertically opposed to the retaining engagement recess, and the engagement protrusion is attached / detached via the upper plate of the engagement rotor. Through the guide groove and the guide engagement recess By releasing the pressure to press until engagement, the engaging projection is rotatable derived rotational engagement or detachable guide grooves retainer engaging recess by the spring force,
It is characterized by the following.

【0008】[0008]

【実施例】以下、本発明の実施例を、図例に基づいて詳
細に説明をする。
Embodiments of the present invention will now be described in detail with reference to the drawings.

【0009】(1) 本実施例は、基本的には、図1に示す
如く、燃料タンクのフィラーネック11に装着されるキ
ャップであって、弁機構(内圧調製弁)15が内蔵され
た筒状のシールケース17と、該シールケース17にシ
ール力を付与するばね付勢可能な状態で外嵌される係合
ロータ19と、係合ロータ19の上端に嵌着されるアッ
パプレート21とからなる。
(1) This embodiment is basically a cap mounted on a filler neck 11 of a fuel tank, as shown in FIG. 1, in which a valve mechanism (internal pressure adjusting valve) 15 is incorporated. From a ring-shaped seal case 17, an engagement rotor 19 that is fitted externally in a spring-biasable state that applies a sealing force to the seal case 17, and an upper plate 21 that is fitted to the upper end of the engagement rotor 19. Become.

【0010】(2) シールケース17は、フィラーネック
11のキャップ収納拡径部13の底部に形成された環状
シール座12に圧接するシールフランジ部22を備えて
いる。
(2) The seal case 17 is provided with a seal flange portion 22 which is in pressure contact with the annular seal seat 12 formed on the bottom portion of the cap accommodating expanded portion 13 of the filler neck 11.

【0011】より具体的には、シールケース17のシー
ルフランジ部22の裏面にはガスケット23が貼着さ
れ、シールフランジ部22の上面は後述の圧縮コイルば
ね25のばね座とされている。またシールケース17の
上端には、ロータ抜け止め爪部27が部分的または全周
にわたり形成されている。
More specifically, a gasket 23 is attached to the back surface of the seal flange portion 22 of the seal case 17, and the upper surface of the seal flange portion 22 serves as a spring seat of a compression coil spring 25 described later. A rotor retaining claw portion 27 is formed on the upper end of the seal case 17 partially or entirely.

【0012】(3) フィラーネック11の内周面と係合ロ
ータ19の外周面との間には、複数対の係合凸部31及
び抜止め係合凹部33が形成され、抜止め係合凹部33
の形成側面には、該抜止め係合凹部33を挟んで着脱案
内溝35及び着脱案内溝39が形成されるとともに、該
抜止め係合凹部33の上下方向対向位置に案内係合凹部
37が形成されている。
(3) Between the inner peripheral surface of the filler neck 11 and the outer peripheral surface of the engaging rotor 19, a plurality of pairs of engaging convex portions 31 and retaining engagement concave portions 33 are formed, and retaining engagement is performed. Recess 33
A detachable guide groove 35 and an attachable / detachable guide groove 39 are formed on the side surface where the retaining engagement recess 33 is sandwiched, and a guide engaging recess 37 is formed at a position vertically opposed to the retaining engagement recess 33. Has been formed.

【0013】ここでは、係合凸部31がフィラーネック
11の内周面に形成されているが、図5に示す如く、係
合ロータ19の外周面に形成してもよい。そして、係合
凸部31、図例では、8個形成されているが、少なくと
も2個あればよい。
Although the engaging convex portion 31 is formed on the inner peripheral surface of the filler neck 11 here, it may be formed on the outer peripheral surface of the engaging rotor 19 as shown in FIG. Although eight engaging protrusions 31 are formed in the illustrated example, at least two engaging protrusions 31 may be formed.

【0014】具体的には、係合凸部31が垂直底辺31
aと上下斜辺31b、31cからなる三角形状である。
図例では、底角45°ニ等辺直角三角形であるが、通
常、底角30°から60°の範囲で任意に選択でき、不
等辺三角形であってもよい。
More specifically, the engaging protrusion 31 has a vertical base 31.
It has a triangular shape including a and upper and lower oblique sides 31b and 31c.
In the illustrated example, the base angle is an isosceles right triangle having a base angle of 45 °, but normally, the base angle can be arbitrarily selected within a range of 30 ° to 60 °, and may be an isosceles triangle.

【0015】抜止め係合凹部33は、係合凸部31の三
角形の下頂角部(導出側頂角部)に対応する凹部形状で
ある。即ち、抜止め係合凹部33は、係合凸部31の下
斜辺31cと摺接する斜面33aと、係合凸部31の底
辺31aと摺接する垂直面33bで構成される。抜止め
係合凹部33は、安全の見地から、2個であるが、1個
でもよい。
The retaining engagement concave portion 33 has a concave shape corresponding to the triangular lower apex portion (outlet side apex portion) of the engaging convex portion 31. That is, the retaining engagement recessed portion 33 is composed of an inclined surface 33a that is in sliding contact with the lower oblique side 31c of the engaging convex portion 31 and a vertical surface 33b that is in sliding contact with the bottom side 31a of the engaged convex portion 31. The number of the retaining engagement concave portions 33 is two from the viewpoint of safety, but may be one.

【0016】着脱案内溝35は、案内係合凹部37への
係合凸部31を導入・導出するためのものである。ここ
で、位置決めしてキャップをフィラーネックに挿入する
場合は不要であるが、係合凸部31がどの位置に来ても
着脱案内溝35に導入可能なように、着脱案内溝35の
手前に三角形の上頂点が摺接する導入案内斜面36、3
6Aを有する。即ち、図例では、凸状の逆三角形部の両
面で当該案内斜面36、36Aが形成されている。
The attachment / detachment guide groove 35 is for introducing / drawing the engaging convex portion 31 into / from the guide engaging concave portion 37. Here, it is not necessary to position and insert the cap into the filler neck, but in order to be able to introduce the engaging convex portion 31 into the attachment / detachment guide groove 35 at any position, it is provided in front of the attachment / detachment guide groove 35. Introductory guide slopes 36, 3 with which the upper vertices of a triangle slide
Have 6A. That is, in the illustrated example, the guide slopes 36 and 36A are formed on both sides of the convex inverted triangular portion.

【0017】また、案内係合凹部37は、係合凸部31
の三角形の上頂角部に対応して凹部形状である。即ち、
案内係合凹部37は、係合凸部31の上斜辺31bと摺
接する斜面37aと、係合凸部31の底辺31aと摺接
する垂直面37bで構成される。図例では、案内係合凹
部37は、抜止め係合凹部33案内用のものが2個と、
着脱案内溝39用のものが1個、計3個形成されている
が、抜止め係合凹部33が1個の場合は、計2個とな
る。
Further, the guide engaging concave portion 37 has the engaging convex portion 31.
Is a concave shape corresponding to the upper corner of the triangle. That is,
The guide engagement concave portion 37 is composed of an inclined surface 37 a that is in sliding contact with the upper oblique side 31 b of the engaging convex portion 31 and a vertical surface 37 b that is in sliding contact with the bottom side 31 a of the engaging convex portion 31. In the illustrated example, two guide engagement recesses 37 are provided for guiding the retaining engagement recess 33,
Although one for the attachment / detachment guide groove 39 is formed, a total of three is formed, but if the number of the retaining engagement recesses 33 is one, the total is two.

【0018】ここで、案内係合凹部37と抜止め係合凹
部33の対向斜面37a、33aはそれぞれ部分重合し
ている。係合凸部31が順次、自動的に案内係合凹部3
7から抜止め係合凹部33へ相対回動移動する必要があ
るためである。
Here, the facing slopes 37a and 33a of the guide engagement recess 37 and the retaining engagement recess 33 are partially overlapped with each other. The engaging projections 31 are automatically and sequentially guided guiding recesses 3
This is because it is necessary to relatively rotate from 7 to the retaining engagement recess 33.

【0019】図例では、各案内係合凹部37の垂直面3
7bが、抜止め係合凹部33の斜面33aの中心位置に
来る様になっているが、重なりは、通常、1mm以上あれ
ばよい。
In the illustrated example, the vertical surface 3 of each guide engagement recess 37 is shown.
7b is located at the center of the inclined surface 33a of the retaining engagement recess 33, but the overlap is normally 1 mm or more.

【0020】そして、必然的ではないが、抜け止め係合
凹部33と着脱案内溝35Aとの間には、該着脱案内溝
35Aへの係合凸部31の導出を円滑にするため、係合
凸部31の下斜辺31cと摺接する導出案内斜面39を
有する。
Although not inevitable, between the retaining engagement recessed portion 33 and the attachment / detachment guide groove 35A, the engagement protrusion 31 is smoothly drawn out of the attachment / detachment guide groove 35A. It has a lead-out guide slope 39 that is in sliding contact with the lower oblique side 31c of the convex portion 31.

【0021】(4) 圧縮コイルばね25は、キャップをフ
ィラーネック11に装着時に、シールケース17のシー
ルフランジ部21を環状シール座12に圧接する作用を
奏するとともに、係合ロータ19の押圧を解除したと
き、係合ロータ19の回動係合の動力となるものであ
る。
(4) The compression coil spring 25 has the function of pressing the seal flange portion 21 of the seal case 17 against the annular seal seat 12 when the cap is mounted on the filler neck 11, and releases the pressing force of the engaging rotor 19. When this is done, it becomes the power for the rotational engagement of the engagement rotor 19.

【0022】具体的には、圧縮コイルばね25は、シー
ルケース17のシールフランジ部22上面と、係合ロー
タ19の内周に形成された上ばね座フランジ20の間に
介装されている。
Specifically, the compression coil spring 25 is interposed between the upper surface of the seal flange portion 22 of the seal case 17 and the upper spring seat flange 20 formed on the inner circumference of the engagement rotor 19.

【0023】(5) アッパプレート21は、係合ロータ1
9の上端に形成された係合フランンジ部41と係合受け
爪部43との嵌着により係合ロータ19に取り付け可能
とされている。なお、アッパプレート21の上壁外周部
には、バルブ機構作動時の通気孔21aとされている。
(5) The upper plate 21 is the engagement rotor 1
The engagement flange 41 and the engagement receiving claw 43 formed at the upper end of the shaft 9 are fitted to the engagement rotor 19. A ventilation hole 21a is formed in the outer peripheral portion of the upper wall of the upper plate 21 when the valve mechanism is operated.

【0024】(6) 次に、上記実施例の使用態様を説明す
る。
(6) Next, the mode of use of the above embodiment will be described.

【0025】キャップ装着:キャップをフィラーネッ
ク11に挿入押圧すると、係合凸部31が、着脱案内溝
35の導入案内斜面36を摺接し、着脱案内溝35に導
入され、さらに、案内係合凹部37の斜面37aに案内
されて、係合凸部31が案内係合凹部37に回動係合し
て底付きする。そして、押圧を解除すると、ばね力によ
り係合ロータ19が上方へ移動して、抜止め係合凹部3
3の斜面33aに案内されて係合凸部31と抜止め係合
凹部33が回動係合する。(図4の二重線矢印部) こうして、係合ロータ19は、アッパプレート21を介
しばね力に抗して下方へ押圧しなければ、回動・上方へ
移動不能となり、キャップは抜け不能にフィラーネック
11に装着されることとなる。
Cap mounting: When the cap is inserted into the filler neck 11 and pressed, the engaging projection 31 slides into the introduction guide slope 36 of the attachment / detachment guide groove 35 and is introduced into the attachment / detachment guide groove 35. Guided by the inclined surface 37 a of 37, the engagement protrusion 31 pivotally engages with the guide engagement recess 37 and bottoms. When the pressure is released, the engagement rotor 19 moves upward due to the spring force, and the retaining engagement recess 3
The engaging convex portion 31 and the retaining engagement concave portion 33 are rotationally engaged by being guided by the inclined surface 33a of No. 3. (The double-lined arrow in FIG. 4) Thus, unless the engagement rotor 19 is pressed downward against the spring force via the upper plate 21, it cannot be rotated or moved upward, and the cap cannot be removed. It will be attached to the filler neck 11.

【0026】こうして、キャップは押圧挿入するだけ
で、フィラーネックへの装着作業が完了する。 なお、
係合凸部31が導入案内斜面36A側へ位置するとき
は、係合凸部31は、右側に着脱案内溝35へ導入され
る。
In this way, the work of attaching the cap to the filler neck is completed only by pressing and inserting the cap. In addition,
When the engagement protrusion 31 is located on the introduction guide slope 36A side, the engagement protrusion 31 is introduced to the attachment / detachment guide groove 35 on the right side.

【0027】キャップ取り外し:アッパプレート21
を下方へ底付きするまで押圧して手を離すと、上記キャ
ップ装着時と同様にして、係合凸部31が案内係合凹部
35との係合を経て次の抜止め係合凹部33に係合す
る。(図4の実線矢印部) 再度、アッパプレート21を下方へ底付きするまで押圧
して手を離すと、係合凸部31が次の案内係合凹部37
との係合を経て、導出案内斜面39に案内されて着脱案
内溝35Aに至る。(図4の点線矢印部) この状態では、係合凸部31に対して係合ロータ19が
上下動自在(フリー)で、アッパプレート21がフィラ
ーネック11の開口端から突出した状態となるので(図
1の二点鎖線)、手でキャップ上端を把持して取り外す
ことができる。
Cap removal: Upper plate 21
When the cap is pushed downward until it bottoms out and the hand is released, the engaging convex portion 31 engages with the guide engaging concave portion 35 and becomes the next retaining engagement concave portion 33 in the same manner as when the cap is attached. Engage. (The solid line arrow in FIG. 4) When the upper plate 21 is pressed downward again until it bottoms out and the hand is released, the engagement projection 31 is moved to the next guide engagement recess 37.
Through the guide guide slope 39 and reaches the attachment / detachment guide groove 35A. (Dotted arrow portion in FIG. 4) In this state, the engaging rotor 19 is vertically movable (free) with respect to the engaging convex portion 31, and the upper plate 21 projects from the open end of the filler neck 11. (The two-dot chain line in FIG. 1), the upper end of the cap can be gripped and removed by hand.

【0028】(7) 図5に示す実施例は、係合凸部31を
係合ロータ19側に形成したものである。基本的に使用
態様は図1の実施例と同様であるが、図4の作動説明図
を180°回転させた、上下・左右逆の関係になり、係
合凸部31自体が上下回動移動することとなる。
(7) In the embodiment shown in FIG. 5, the engaging projection 31 is formed on the engaging rotor 19 side. Basically, the mode of use is the same as that of the embodiment of FIG. 1, but there is an upside-down / left-right inverted relationship in which the operation explanatory view of FIG. 4 is rotated 180 °, and the engaging projection 31 itself moves up and down. Will be done.

【0029】[0029]

【発明の作用・効果】本発明の燃料タンク用キャップ
は、上記の如く、燃料タンクのフィラーネックに装着さ
れるキャップであって、弁機構が内蔵された筒状のシー
ルケースと、該シールケースに上方へばね付勢可能な状
態で外嵌される係合ロータと、係合ロータの上端に嵌着
されるアッパプレートとからなり、シールケースは、フ
ィラーネックのキャップ嵌着拡径部の底部に形成された
環状シール座に圧接するシールフランジ部を備え、フィ
ラーネック内周面と係合ロータ外周面との間には、複数
対の係合凸部及び抜止め係合凹部が形成され、該抜止め
係合凹部の形成側面には、該抜止め係合凹部を挟んで着
脱案内溝が形成されるとともに、該抜止め係合凹部の上
下方向対向位置に案内係合凹部が形成され、係合ロータ
をアッパプレートを介して、係合凸部が着脱案内溝を経
て案内係合凹部と係合するまで回動押圧して押圧を解除
することにより、係合凸部がばね力により抜止め係合凹
部に回動係合又は着脱案内溝に回動導出可能とされてい
る構成により下記のような作用・効果を奏する。
As described above, the fuel tank cap of the present invention is a cap to be mounted on the filler neck of a fuel tank, and is a tubular seal case having a valve mechanism incorporated therein, and the seal case. And an upper plate fitted to the upper end of the engaging rotor, and the seal case is a bottom part of the cap fitting expanded portion of the filler neck. A seal flange portion press-contacting the annular seal seat formed in, between the filler neck inner peripheral surface and the engagement rotor outer peripheral surface, a plurality of pairs of engagement projections and retaining engagement recesses are formed, A detachment guide groove is formed on the side surface where the retaining engagement recess is formed, sandwiching the retaining engagement recess, and a guide engaging recess is formed at a position vertically opposed to the retaining engagement recess. Engage rotor to upper plate Then, the engaging convex portion is rotated and pressed until it engages with the guide engaging concave portion through the attachment / detachment guide groove, and the pressing is released, whereby the engaging convex portion is rotated to the retaining engagement concave portion by the spring force. The following actions and effects are achieved by the structure in which the engagement or attachment / detachment guide groove can be rotated and led out.

【0030】キャップ装着時及び取り外し時共に、キャ
ップを底付きするまで押圧して、手を離すだけで、係合
凸部と抜止め係合凹部との係合・脱着を繰り返すことが
でき、従来の如く、ねじ込み・ねじ緩めのための回転作
業が不要である。フィラーネックへの装着・取り外し作
業性が良好となる。
At the time of attaching and detaching the cap, the engagement convex portion and the retaining engagement concave portion can be repeatedly engaged and disengaged by pressing the cap until it bottoms out and releasing the hand. As described above, the rotating work for screwing and loosening the screw is unnecessary. The workability of attaching / removing to / from the filler neck is improved.

【0031】また、キャップの装着・取り外しは、押圧
により行うため、つまみ部が不要で装着完了状態でフィ
ラーネック内にキャップを完全に収納できる。従って、
つまみカバー体等の収納空間が不要となる。
Since the cap is attached and detached by pressing, the knob is not necessary and the cap can be completely stored in the filler neck when the attachment is completed. Therefore,
A storage space such as a knob cover body is unnecessary.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の燃料タンク用キャップの一実施例を示
す装着態様断面図。
FIG. 1 is a sectional view of a mounting mode showing an embodiment of a fuel tank cap of the present invention.

【図2】同じく図1におけるフィラーネックの断面図FIG. 2 is a sectional view of the filler neck in FIG.

【図3】同じく図1における係合ロータの断面図FIG. 3 is a sectional view of the engagement rotor of FIG.

【図4】係合ロータの作動説明図FIG. 4 is an operation explanatory view of an engagement rotor.

【図5】本発明の燃料タンク用キャップの他の実施例を
示す装着態様断面図。
FIG. 5 is a sectional view of a mounting mode showing another embodiment of the fuel tank cap of the present invention.

【符号の説明】[Explanation of symbols]

11 フィラーネック 13 キャップ 15 弁機構 17 シールケース 19 係合ロータ 21 アッパプレート 25 圧縮コイルばね 31 係合凸部 33 抜止め係合凹部 35、35A 着脱案内溝 36、36A 導入案内斜面 37 案内係合凹部 39 導出案内斜面 11 Filler Neck 13 Cap 15 Valve Mechanism 17 Seal Case 19 Engagement Rotor 21 Upper Plate 25 Compression Coil Spring 31 Engagement Convex Part 33 Detach Engagement Recessed Concave 35, 35A Detachment Guide Groove 36, 36A Introducing Guide Slope 37 Guide Engagement Recess 39 Derivation guide slope

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 燃料タンクのフィラーネックに装着され
るキャップであって、弁機構が内蔵された筒状のシール
ケースと、該シールケースに上方へばね付勢可能な状態
で外嵌される係合ロータと、係合ロータの上端に嵌着さ
れるアッパプレートとからなり、 前記シールケースは、前記フィラーネックのキャップ収
納拡径部の底部に形成された環状シール座に圧接するシ
ールフランジ部を備え、 フィラーネック内周面と係合ロータ外周面との間には、
複数対の係合凸部及び抜止め係合凹部が形成され、該抜
止め係合凹部の形成側面には、該抜止め係合凹部を挟ん
で着脱案内溝が形成されるとともに、該抜止め係合凹部
の上下方向対向位置に案内係合凹部が形成され、 前記係合ロータをアッパプレートを介して、前記係合凸
部が着脱案内溝を経て前記案内係合凹部と係合するまで
押圧して押圧を解除することにより、前記係合凸部がば
ね力により前記抜止め係合凹部に回動係合又は着脱案内
溝に回動導出可能とされている、 ことを特徴とする燃料タンク用キャップ。
1. A cap mounted on a filler neck of a fuel tank, which is a tubular seal case having a built-in valve mechanism, and a member which is externally fitted to the seal case in a state capable of being biased upward by a spring. It is composed of a combined rotor and an upper plate fitted to the upper end of the engaging rotor, and the seal case has a seal flange portion that is in pressure contact with an annular seal seat formed at the bottom of the cap storage expanded portion of the filler neck. Provided, between the inner surface of the filler neck and the outer surface of the engaging rotor,
A plurality of pairs of engaging projections and retaining engagement recesses are formed, and a detachment guide groove is formed on the side surface where the retaining engagement recesses are formed with the retaining engagement recesses sandwiched between the retaining projections and the retaining engagement recesses. A guide engagement recess is formed at a position opposite to the engagement recess in the vertical direction, and the engagement rotor is pressed through the upper plate until the engagement projection engages with the guide engagement recess through the attachment / detachment guide groove. By releasing the pressing force, the engagement convex portion can be rotationally engaged with the retaining engagement concave portion or can be rotationally led out to the attachment / detachment guide groove by a spring force. For cap.
【請求項2】 請求項1において、前記係合凸部が垂直
底辺と上下斜辺からなる三角形状で、前記着脱案内溝の
手前に導出案内斜面が形成され、前記案内係合凹部が前
記係合凸部の三角形の導入側頂角部に対応した凹部形状
で、前記抜止め係合凹部が前記係合凸部の三角形の導出
側頂角部に対応した凹部形状で、しかも、前記案内係合
凹部と前記抜止め係合凹部の対向斜面がそれぞれ部分重
合し、さらに、前記係合凹部と前記着脱溝との間に導出
案内斜面が形成されていることを特徴とする燃料タンク
用キャップ。
2. The guide protrusion according to claim 1, wherein the engaging protrusion has a triangular shape composed of a vertical bottom and a vertical slant, and a lead-out guide slope is formed in front of the attachment / detachment guide groove, and the guide engagement recess is the engagement. The convex shape is a concave shape corresponding to the leading-side apex angle portion of the triangle, the retaining engagement concave shape is a concave shape corresponding to the triangular-side apex angle portion of the engaging convex portion, and the guide engagement is The fuel tank cap is characterized in that the recesses and the retaining engagement recesses have opposed slopes partially overlapped with each other, and a lead-out guide slope is formed between the engagement recesses and the attachment / detachment groove.
【請求項3】 請求項1または2において、前記係合凸
部がフィラーネック内周面に形成されていることを特徴
とする燃料タンク用キャップ。
3. The fuel tank cap according to claim 1, wherein the engaging protrusion is formed on the inner peripheral surface of the filler neck.
【請求項4】 請求項1または2において、前記係合凸
部が係合ロータ外周面に形成されていることを特徴とす
る燃料タンク用キャップ。
4. The fuel tank cap according to claim 1, wherein the engaging projection is formed on an outer peripheral surface of the engaging rotor.
JP28088294A 1994-11-15 1994-11-15 Fuel tank cap Expired - Fee Related JP3358345B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP28088294A JP3358345B2 (en) 1994-11-15 1994-11-15 Fuel tank cap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28088294A JP3358345B2 (en) 1994-11-15 1994-11-15 Fuel tank cap

Publications (2)

Publication Number Publication Date
JPH08143056A true JPH08143056A (en) 1996-06-04
JP3358345B2 JP3358345B2 (en) 2002-12-16

Family

ID=17631265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP28088294A Expired - Fee Related JP3358345B2 (en) 1994-11-15 1994-11-15 Fuel tank cap

Country Status (1)

Country Link
JP (1) JP3358345B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006069666A (en) * 2004-08-06 2006-03-16 Toyoda Gosei Co Ltd Cap for tank

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006069666A (en) * 2004-08-06 2006-03-16 Toyoda Gosei Co Ltd Cap for tank
US7757880B2 (en) 2004-08-06 2010-07-20 Toyoda Gosei Co., Ltd. Tank cap

Also Published As

Publication number Publication date
JP3358345B2 (en) 2002-12-16

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