JPH08324228A - Ventilating device for vehicle - Google Patents

Abstract

PURPOSE: To restrain generation of a noise by arranging a linear contact part coming into contact in a linear shape with a support body in a lower part of a valve installed on the support body. CONSTITUTION: A valve 12 comes into contact along both side parts of an inside surface of a support plate part 21 by dead weight and elasticity, and a linear contact part 36 of a projecting strip part 35 of the valve 12 comes into contact in a linear shape with a sealing surface part 31, and almost airtightly covers a ventilating port 26, and can prevent outside air and rainwater or the like from infiltrating into a car. When atmospheric pressure in a cabin becomes higher than atmospheric pressure outside of the car, the valve 12 rotates to the car outside with a part supported with a valve pressing-down member 14 as the starting point, and adjusts the atmospheric pressure in the cabin by opening the ventilating port 26. Since the linear contact part 36 is brought into contact in a linear shape with the sealing surface part 31 of a drafter main body 11 when the valve 12 closes, generation of a hitting sound at actuating time of a drafter l can be effectively restrained.

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、車室から車外に向かう
空気流を許容する車両用通風装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device for a vehicle which allows an air flow from a vehicle compartment to the outside of the vehicle.

【０００２】[0002]

【従来の技術】従来、例えば、実公昭５８−９７７５号
公報に記載された車両用通風装置が知られている。この
車両用通風装置は、車室から車外に通じる開口部に備え
られ、通風口を設けた支持体に、この支持体の通風口を
開閉可能に覆う変形可能なシート状のバルブが取り付け
られている。そして、このような構成により、車外から
車室に向かう外気や雨水などを遮蔽するとともに、ドア
を閉める際などには、バルブが車外側に変形しながら開
き、車室から車外に向かう空気流を許容するようになっ
ている。さらに、この車両用通風装置では、バルブの車
外側の下部にリブを形成し、シート状のバルブの剛性が
高められている。2. Description of the Related Art Conventionally, for example, a vehicle ventilation device described in Japanese Utility Model Publication No. 58-9775 is known. This vehicle ventilation device is provided in an opening that communicates from the vehicle interior to the outside of the vehicle, and a deformable sheet-like valve that covers the ventilation port of the support body in an openable and closable manner is attached to a support body provided with a ventilation port. There is. With such a configuration, the outside air and rainwater that go from the outside of the vehicle to the passenger compartment are shielded, and when the door is closed, the valve opens while deforming to the outside of the vehicle, so that the air flow from the passenger compartment to the outside of the vehicle can be prevented. It's designed to tolerate. Further, in this vehicle ventilation device, a rib is formed in the lower portion of the valve outside the vehicle, so that the rigidity of the seat-shaped valve is enhanced.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、上記従
来の構成では、バルブが復帰変形する際に、このバルブ
が支持体に当接し、例えば、バルブの厚さ寸法が比較的
小さい場合には、空気流に併せてパタパタという異音が
発生し、また、バルブの厚さ寸法が比較的大きい場合に
は、支持体に当接してはね返るバタンという異音が発生
するなどの問題を有している。また、消音のために、バ
ルブの周縁部に沿ってウレタンなどのシール材を貼着す
る構成が考えられるが、部品点数および貼着工程などが
増加し、製造コストの低減が困難である問題を有してい
る。However, in the above-mentioned conventional configuration, when the valve is deformed by return, the valve comes into contact with the support, and, for example, when the thickness of the valve is relatively small, the air is There is a problem that an abnormal noise is generated along with the flow, and when the thickness of the valve is relatively large, an abnormal noise is generated such that the valve abuts against the support and rebounds. In addition, a structure in which a sealing material such as urethane is attached along the peripheral portion of the valve for noise reduction is conceivable, but the number of parts and the attaching process increase, and it is difficult to reduce the manufacturing cost. Have

【０００４】本発明は、このような点に鑑みなされたも
ので、異音の発生を抑制できる車両用通風装置を提供す
ることを目的とする。The present invention has been made in view of the above circumstances, and an object thereof is to provide a ventilation device for a vehicle which can suppress the generation of abnormal noise.

【０００５】[0005]

【課題を解決するための手段】請求項１記載の車両用通
風装置は、車室から車外に通じる開口部に設けられ、通
風口を設けた支持体と、この支持体の通風口の車外側を
開閉可能に覆う変形可能なシート状のバルブとを備え、
このバルブは、上部が前記支持体に取り付けられるとと
もに、下部に前記支持体に線状に当接する線状当接部が
設けられたものである。According to a first aspect of the invention, there is provided a ventilation device for a vehicle, which is provided in an opening communicating from a vehicle compartment to the outside of the vehicle and has a ventilation port, and a ventilation port of the support member outside the vehicle. With a deformable seat-shaped valve that covers the
This valve has an upper portion attached to the support and a lower portion provided with a linear contact portion that linearly contacts the support.

【０００６】請求項２記載の車両用通風装置は、請求項
１記載の車両用通風装置において、バルブの下部に、こ
のバルブの他の部分より重量の大きい錘部を設けたもの
である。According to a second aspect of the present invention, there is provided the vehicular ventilation device according to the first aspect, in which a weight portion having a heavier weight than other portions of the valve is provided at a lower portion of the valve.

【０００７】請求項３記載の車両用通風装置は、請求項
１または２記載の車両用通風装置において、線状当接部
は、バルブの下部に中空状に形成された突条部に形成さ
れたものである。According to a third aspect of the invention, there is provided a vehicle ventilation system according to the first or second aspect, wherein the linear contact portion is formed in a hollow ridge portion at a lower portion of the valve. It is a thing.

【０００８】[0008]

【作用】請求項１記載の車両用通風装置では、バルブ
は、車外側に向かって変形し、車室から車外に向かう空
気流を許容するとともに、支持体に当接して車室側には
変形せず、車外から車室に向かう外気や雨水を遮蔽す
る。バルブが変形して通風口を開いた状態から、復帰変
形して通風口を閉じる際には、下部に設けた線状当接部
が支持体に線状に当接するので、面状に当接する構成に
比べて、異音の発生が抑制される。In the vehicle ventilation device according to the first aspect of the present invention, the valve is deformed toward the outside of the vehicle to allow an air flow from the passenger compartment to the outside of the vehicle, and is also deformed toward the passenger compartment by contacting the support. Instead, it blocks outside air and rainwater from the outside of the vehicle to the passenger compartment. When the valve is deformed and the ventilation port is opened, when the valve is restored and deformed to close the ventilation port, the linear contact portion provided at the lower portion linearly contacts the support member, so that the planar contact is achieved. Generation of abnormal noise is suppressed as compared with the configuration.

【０００９】請求項２記載の車両用通風装置では、請求
項１記載の作用に加え、バルブの下部にこのバルブの他
の部分より大きい錘部を設けたので、線状当接部が支持
体に密着し、気密性が向上する。In the vehicle ventilation device according to the second aspect, in addition to the function according to the first aspect, since the weight portion larger than the other portions of the valve is provided in the lower portion of the valve, the linear abutting portion is the support member. To improve airtightness.

【００１０】請求項３記載の車両用通風装置では、請求
項１または２記載の作用に加え、線状当接部は、バルブ
の下部に中空状に形成された突条部に形成されたので、
線状当接部における衝撃吸収性が向上し、消音性が向上
する。In the vehicle ventilation device according to a third aspect of the present invention, in addition to the effect of the first or second aspect, the linear abutting portion is formed in a hollow ridge portion in the lower portion of the valve. ,
The shock absorbing property in the linear contact portion is improved, and the sound deadening property is improved.

【００１１】[0011]

【実施例】以下、本発明の車両用通風装置の一実施例の
構成を図面を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A configuration of an embodiment of a vehicle ventilation device of the present invention will be described below with reference to the drawings.

【００１２】図１ないし図３において、１は車両用通風
装置としてのドラフタで、このドラフタ１は、図示しな
い自動車などの車体に取り付けられ、車室から車外への
空気流のみを許容するいわゆるワンウェイバルブを構成
している。そして、このドラフタ１は、車体に取り付け
られる支持体としてのドラフタ本体11と、このドラフタ
本体11に取り付けられるバルブ12およびバルブ押え14と
から構成されている。1 to 3, reference numeral 1 denotes a drafter as a ventilation device for a vehicle. The drafter 1 is attached to a vehicle body such as an automobile (not shown) and is a so-called one-way that allows only an air flow from the passenger compartment to the outside of the vehicle. It constitutes a valve. The draft 1 is composed of a draft body 11 as a support body attached to the vehicle body, and a valve 12 and a valve retainer 14 attached to the draft body 11.

【００１３】そして、ドラフタ本体11は、合成樹脂など
にて一体形成され、略角筒状をなす筒状部16と、この筒
状部16の外周面から突設された環状の取付辺部17とが設
けられているとともに、筒状部16の車内側の開口部に
は、支持板部21が形成されている。そして、支持板部21
は、上部に、垂直状をなす取付板部22が形成されている
とともに、この取付板部22の下側に連続して、車外側に
向かって傾斜した傾斜板部23が形成されている。また、
取付板部22の内側面には、両側方向に所定間隔で取付孔
24が形成されている。The draft main body 11 is integrally formed of synthetic resin or the like, and has a tubular portion 16 having a substantially rectangular tubular shape, and an annular mounting side portion 17 protruding from the outer peripheral surface of the tubular portion 16. And a support plate portion 21 is formed in the opening of the tubular portion 16 on the vehicle inner side. And the support plate portion 21
A vertical mounting plate 22 is formed on the upper part of the vehicle, and an inclined plate 23 is formed continuously with the lower side of the mounting plate 22 so as to be inclined toward the vehicle outer side. Also,
On the inner side surface of the mounting plate portion 22, mounting holes are provided at predetermined intervals in both directions.
24 are formed.

【００１４】さらに、取付板部22から傾斜板部23にかけ
て、矩形状の通風口26が形成されているとともに、この
通風口26に、格子状をなす格子部28が形成されている。
なお、この格子部28は、図３などに示すように、外側面
28a は傾斜板部23とほぼ面一で、内側面28b は傾斜板部
23よりも若干後退して形成されている。Further, a rectangular ventilation opening 26 is formed from the mounting plate portion 22 to the inclined plate portion 23, and a lattice-shaped grid portion 28 is formed in the ventilation opening 26.
In addition, as shown in FIG.
28a is substantially flush with the inclined plate portion 23, and the inner surface 28b is the inclined plate portion 23.
It is formed slightly backward from 23.

【００１５】また、傾斜板部23の内側面には、通風口26
の下方に位置して、シール面部31が形成されている。そ
して、このシール面部31は、傾斜板部23の両側方向の全
長にわたり、傾斜板部23よりも若干後退して形成されて
いる。A ventilation port 26 is provided on the inner surface of the inclined plate portion 23.
A seal surface portion 31 is formed below the. The sealing surface portion 31 is formed over the entire length of the inclined plate portion 23 in both lateral directions so as to be slightly retracted from the inclined plate portion 23.

【００１６】一方、バルブ12は、ネオプレンゴムなどの
弾性を有する材料を用い、射出成形あるいは押し出し成
形などにより、シート状に形成されている。そして、こ
のバルブ12は、支持板部21の内側面に当接して通風口26
を覆う平面略矩形状をなし、上端部近傍には、取付板部
22の取付孔24に対応する取付孔33が所定間隔で形成され
ているとともに、下端部には、両側方向に沿って、傾斜
板部23のシール面部31に向かって円弧状に肉厚に突出す
る錘部をかねた突条部35が形成され、この突条部35に沿
って、線状当接部36が形成されている。On the other hand, the valve 12 is made of an elastic material such as neoprene rubber and is formed into a sheet by injection molding or extrusion molding. Then, the valve 12 is brought into contact with the inner side surface of the support plate portion 21 so that the ventilation port 26
It has a flat rectangular shape that covers the
Mounting holes 33 corresponding to the mounting holes 24 of 22 are formed at a predetermined interval, and at the lower end portion, along the both sides, arc-shaped thickly projected toward the seal surface portion 31 of the inclined plate portion 23. A ridge portion 35 also serving as a weight portion is formed, and a linear contact portion 36 is formed along the ridge portion 35.

【００１７】また、バルブ押え14は、細長矩形板状をな
す押え本体38を有するとともに、この押え本体38から、
所定間隔で接続ピン39が突設されている。そして、この
接続ピン39を、バルブ12の取付孔33を介してドラフタ本
体11の取付孔24に圧入して固着することにより、ドラフ
タ本体11の取付板部22とバルブ押え14の押え本体38との
間に、バルブ12の上部が締め付け固定されている。The valve retainer 14 has a retainer body 38 in the form of an elongated rectangular plate, and from this retainer body 38,
Connection pins 39 are provided at predetermined intervals. Then, the connecting pin 39 is press-fitted into the mounting hole 24 of the drafter main body 11 through the mounting hole 33 of the valve 12 to be fixed, whereby the mounting plate portion 22 of the drafter main body 11 and the presser body 38 of the valve retainer 14 are connected. In between, the upper part of the valve 12 is clamped and fixed.

【００１８】そして、この状態で、バルブ12は、自重お
よび弾性により、支持板部21の内側面の両側部に沿って
当接するとともに、バルブ12の突条部35の線状当接部36
がシール面部31に線状に当接して、通風口26をほぼ気密
に覆い、外気や雨水などが車室に侵入しないようになっ
ている。In this state, the valve 12 abuts along both sides of the inner side surface of the support plate portion 21 by its own weight and elasticity, and the linear abutment portion 36 of the ridge 35 of the valve 12 is abutted.
Linearly abuts the sealing surface portion 31 to cover the ventilation port 26 in a substantially airtight manner so that outside air, rainwater and the like do not enter the vehicle compartment.

【００１９】また、自動車のドアを閉め、あるいはエア
バッグ装置が作動した場合など、車室内の気圧が車外の
気圧よりも高くなった場合には、バルブ12が、バルブ押
え14に支持された部分を起点として弾性的に変形しなが
ら車外側に回動し、通風口26を開いて、車室から車外に
向かう空気流を許容し、車室の気圧を調整するようにな
っている。Further, when the air pressure inside the vehicle is higher than the air pressure outside the vehicle, such as when the door of the vehicle is closed or the air bag device is activated, the valve 12 is supported by the valve retainer 14. Starting from the point of origin, it is elastically deformed and pivoted to the outside of the vehicle to open the ventilation port 26 to allow an air flow from the vehicle interior to the outside of the vehicle and adjust the air pressure in the vehicle interior.

【００２０】そして、開いたバルブ12が閉じる際には、
このバルブ12は、自らの重量により復帰変形し、しなる
ようにして上側部から徐々に両側の支持板部21に当接し
ていくが、バルブ12の下端部は、反動により高速に移動
し、突条部35の線状当接部36がシール面部31に線状に衝
突する。When the opened valve 12 is closed,
The valve 12 returns and deforms due to its own weight and gradually comes into contact with the support plate portions 21 on both sides from the upper side so that the lower end of the valve 12 moves at high speed due to reaction, The linear contact portion 36 of the protruding portion 35 linearly collides with the seal surface portion 31.

【００２１】このように、本実施例のドラフタ１によれ
ば、シート状のバルブ12が閉じる際に、高速に移動して
ドラフタ本体11に衝突するバルブ12の下部に、線状当接
部36を設けた突条部35を形成し、この線状当接部36をド
ラフタ本体11のシール面部31に線状に当接するようにし
たため、ドラフタ１の作動時にパタパタあるいはバタン
といった異音（打音）の発生を効果的に抑制することが
できる。As described above, according to the draft 1 of this embodiment, when the sheet-shaped valve 12 is closed, the linear contact portion 36 is formed at the lower portion of the valve 12 which moves at high speed and collides with the draft main body 11. Since the linear contact portion 36 is formed so as to linearly contact the sealing surface portion 31 of the draft main body 11, an abnormal noise such as a patter or a bang is generated when the draft 1 is operated. ) Can be effectively suppressed.

【００２２】また、バルブ12の下部に突条部35を形成す
ることにより、バルブ12の下部の重量を増加できるとと
もに、線状当接部36が線状にシール面部31に当接するた
め、通気口26の閉鎖時の気密性を向上することができ
る。Further, by forming the ridge 35 on the lower portion of the valve 12, the weight of the lower portion of the valve 12 can be increased, and the linear contact portion 36 linearly contacts the sealing surface portion 31, so that the ventilation is prevented. The airtightness when the mouth 26 is closed can be improved.

【００２３】そして、バルブ12は、形状が単純で、射出
成形あるいは押し出し成形により安価に形成することが
できる。特に、押し出し成形によれば、帯状に形成した
後、所定の寸法に裁断すると同時に取付孔33を形成で
き、製造コストを低減することができる。The valve 12 has a simple shape and can be inexpensively formed by injection molding or extrusion molding. In particular, according to the extrusion molding, it is possible to reduce the manufacturing cost by forming the strip shape and then cutting it into a predetermined size and simultaneously forming the mounting hole 33.

【００２４】なお、上記の実施例では、バルブ12の下部
に、円弧状に突出する突条部35を形成し、この突条部35
の線状当接部36を平面状のシール面部31に当接したが、
これら突条部およびシール面部は他の形状としてもよ
く、例えば、図４に示すように、バルブ12の下部に、三
角状に突出する突条部41を形成し、この突条部41の稜線
を線状当接部42とするとともに、ドラフタ本体11に、断
面略円弧状に凹設されたシール面部44を形成することも
できる。In the above-described embodiment, the protruding portion 35 protruding in an arc shape is formed on the lower portion of the valve 12, and the protruding portion 35 is formed.
The linear contact portion 36 of was contacted with the flat sealing surface portion 31,
The ridges and the sealing surface may have other shapes. For example, as shown in FIG. 4, a ridge 41 protruding in a triangular shape is formed in the lower portion of the valve 12, and the ridge line of the ridge 41 is formed. It is also possible to form the linear contact portion 42 and to form the seal surface portion 44, which is provided in the draft main body 11 and has a substantially arcuate cross section.

【００２５】また、図５に示すように、バルブ12の下部
に中空状の突条部46を形成して、線状当接部47における
衝撃吸収性を向上させ、消音性を向上することができ
る。Further, as shown in FIG. 5, a hollow ridge 46 is formed in the lower portion of the valve 12 to improve the shock absorbing property of the linear contact part 47 and improve the sound deadening property. it can.

【００２６】また、図６に示すように、バルブ12の下部
に複数条の突条部51を形成して、これら突条部51の線状
当接部52をそれぞれシール面部に当接させて、気密性を
高めることができる。Further, as shown in FIG. 6, a plurality of ridges 51 are formed in the lower portion of the valve 12, and the linear contact portions 52 of these ridges 51 are respectively brought into contact with the seal surface portions. , The airtightness can be increased.

【００２７】さらに、図７に示すように、バルブ12の下
部に鋭角状に突出したいわゆるリップ形状の突条部54を
形成し、この突条部54をシール面部に当接させて変形さ
せることにより、気密性を高めることができる。Further, as shown in FIG. 7, a so-called lip-shaped protruding portion 54 protruding in an acute angle is formed in the lower portion of the valve 12, and the protruding portion 54 is brought into contact with the sealing surface portion to be deformed. Thereby, airtightness can be improved.

【００２８】なお、上記の各実施例では、突条部をバル
ブに一体に形成したが、別体に形成した突条部をバルブ
に取り付けることもできる。In each of the above embodiments, the ridge portion is formed integrally with the valve, but the ridge portion formed separately can be attached to the valve.

【００２９】[0029]

【発明の効果】請求項１記載の車両用通風装置によれ
ば、バルブが変形して通風口を開いた状態から、復帰変
形して通風口を閉じる際には、下部に設けた線状当接部
が支持体に線状に当接するため、面状に当接する構成に
比べて、異音の発生を抑制することができる。According to the vehicle ventilation device of the first aspect of the present invention, when the valve is deformed and the ventilation port is opened and then the valve is deformed by returning and deformed to close the ventilation port, the linear contact member provided at the lower portion is provided. Since the contact portion linearly abuts on the support, it is possible to suppress the generation of abnormal noise as compared with the configuration in which the contact portion abuts on the surface.

【００３０】請求項２記載の車両用通風装置によれば、
請求項１記載の効果に加え、バルブの下部にこのバルブ
の他の部分より大きい錘部を設けたため、線状当接部を
支持体に密着させ、気密性を向上することができる。According to the vehicle ventilation device of the second aspect,
In addition to the effect of the first aspect, since the weight portion larger than the other portions of the valve is provided in the lower portion of the valve, the linear contact portion can be brought into close contact with the support body, and the airtightness can be improved.

【００３１】請求項３記載の車両用通風装置によれば、
請求項１または２記載の効果に加え、線状当接部を、バ
ルブの下部に中空状に形成した突条部に形成したため、
線状当接部における衝撃吸収性が向上し、消音性を向上
することができる。According to the vehicle ventilation device of claim 3,
In addition to the effect according to claim 1 or 2, since the linear contact portion is formed in the protruding portion formed in a hollow shape in the lower portion of the valve,
The shock absorbing property in the linear contact portion is improved, and the sound deadening property can be improved.

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

【図１】本発明の車両用通風装置の一実施例を示す断面
図である。FIG. 1 is a cross-sectional view showing an embodiment of a vehicle ventilation device of the present invention.

【図２】同上車両用通風装置の分解斜視図である。FIG. 2 is an exploded perspective view of the same vehicle ventilation device.

【図３】同上車両用通風装置の一部の断面図である。FIG. 3 is a partial cross-sectional view of the same vehicle ventilation device.

【図４】本発明の車両用通風装置の他の実施例を示す一
部の断面図である。FIG. 4 is a partial cross-sectional view showing another embodiment of the vehicle ventilation device of the present invention.

【図５】本発明の車両用通風装置の他の実施例を示すバ
ルブの一部の斜視図である。FIG. 5 is a perspective view of a part of a valve showing another embodiment of the vehicle ventilation device of the present invention.

【図６】本発明の車両用通風装置の他の実施例を示すバ
ルブの一部の斜視図である。FIG. 6 is a perspective view of a part of a valve showing another embodiment of the vehicle ventilation device of the present invention.

【図７】本発明の車両用通風装置の他の実施例を示すバ
ルブの一部の斜視図である。FIG. 7 is a partial perspective view of a valve showing another embodiment of the vehicle ventilation device of the present invention.

【符号の説明】[Explanation of symbols]

１ 車両用通風装置としてのドラフタ 11 支持体としてのドラフタ本体 12 バルブ 26 通風口 35 錘部をかねた突条部 36 線状当接部 1 Draft as a ventilation device for vehicles 11 Draft body as a support 12 Valve 26 Ventilation port 35 Ridge part that doubles as a weight part 36 Linear contact part

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 車室から車外に通じる開口部に設けら
れ、 通風口を設けた支持体と、 この支持体の通風口の車外側を開閉可能に覆う変形可能
なシート状のバルブとを備え、 このバルブは、上部が前記支持体に取り付けられるとと
もに、下部に前記支持体に線状に当接する線状当接部が
設けられたことを特徴とする車両用通風装置。1. A support, which is provided in an opening communicating from the vehicle interior to the outside of the vehicle and has a ventilation port, and a deformable sheet-like valve that covers the ventilation port of the support so as to open and close the vehicle. The ventilating device for a vehicle, wherein the valve has an upper portion attached to the support and a lower portion provided with a linear contact portion that linearly contacts the support. 【請求項２】 バルブの下部に、このバルブの他の部分
より重量の大きい錘部を設けたことを特徴とする請求項
１記載の車両用通風装置。2. The ventilation device for a vehicle according to claim 1, wherein a weight portion having a heavier weight than other portions of the valve is provided at a lower portion of the valve. 【請求項３】 線状当接部は、バルブの下部に中空状に
形成された突条部に形成されたことを特徴とする請求項
１または２記載の車両用通風装置。3. The ventilation device for a vehicle according to claim 1, wherein the linear contact portion is formed on a protruding portion formed in a hollow shape in a lower portion of the valve.