JPH0561135B2 - - Google Patents
Info
- Publication number
- JPH0561135B2 JPH0561135B2 JP62290388A JP29038887A JPH0561135B2 JP H0561135 B2 JPH0561135 B2 JP H0561135B2 JP 62290388 A JP62290388 A JP 62290388A JP 29038887 A JP29038887 A JP 29038887A JP H0561135 B2 JPH0561135 B2 JP H0561135B2
- Authority
- JP
- Japan
- Prior art keywords
- hollow seal
- continuous
- sectional shape
- cross
- bent
- 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 - Lifetime
Links
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000008961 swelling Effects 0.000 description 4
- 230000037303 wrinkles Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 201000004569 Blindness Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 208000018769 loss of vision Diseases 0.000 description 1
- 231100000864 loss of vision Toxicity 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000004393 visual impairment Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、自動車並びにこれと同種の車両等に
おける、ドア、トランクリツド、テールゲート、
その他の開閉部の開口側縁に装着するための弾性
シール体に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is applicable to doors, trunk lids, tailgates, etc. in automobiles and similar vehicles.
The present invention relates to an elastic seal body to be attached to the opening side edge of other opening/closing parts.
従来一般に、弾性シール体は、第１０図及び第
１１図に示すごとく、例えば、自動車７のフロン
ト開閉部７０等の車体開口側縁７２に装着するも
のである。なお、この開閉部７０は、乗車口部と
して車体側に設けられ、ドアが開閉される部分で
ある。
Conventionally, an elastic seal body is generally attached to a side edge 72 of a vehicle body opening, such as a front opening/closing part 70 of an automobile 7, as shown in FIGS. 10 and 11. The opening/closing part 70 is provided on the vehicle body side as a boarding entrance, and is a part where the door is opened and closed.
そして、上記弾性シール体１は、第１１図に示
すごとく、一般に押出成形機により連続して成形
された長尺物である。そして、その断面形状は均
一である。 As shown in FIG. 11, the elastic sealing body 1 is generally a long product continuously molded using an extrusion molding machine. And its cross-sectional shape is uniform.
一方、ドア開閉部７０の開口側縁７２には、第
１０図に示すごとく、比較的小なる曲率半径の屈
曲部７５が存在したり、緩やかな曲線部７３並び
に直線部７４（以下、この両者を含めて、直線部
と称する）が存在する。そして、前記屈曲部７５
近傍のX2領域、その前後の直線部X1領域にはそ
れぞれ、第１１図に示す弾性シール体１のY2，
Y1部分が装着される。但し、Y1，Y2部分の断面
Ｃ，Ｄの断面形状は、全て均一である。なお、第
１０図におけるＣ，Ｄ部分は、第１１図における
Ｃ，Ｄ部分と対応する。 On the other hand, on the opening side edge 72 of the door opening/closing part 70, as shown in FIG. (including the straight part) exists. Then, the bent portion 75
The nearby X 2 area and the straight line X 1 area before and after it are each filled with Y 2 and Y 2 of the elastic seal body 1 shown in FIG.
Y 1 part is installed. However, the cross-sectional shapes of the cross sections C and D of the Y 1 and Y 2 portions are all uniform. Note that portions C and D in FIG. 10 correspond to portions C and D in FIG. 11.
かかる弾性シール体としては、例えば、特公昭
56−43175号公報、並びに実公昭59−17714号公報
で開示の如く、比較的小なる曲率半径の屈曲部の
装着に適した「緩衝密封条片」が提案されてい
る。 As such an elastic seal body, for example,
As disclosed in Japanese Patent No. 56-43175 and Japanese Utility Model Publication No. 59-17714, a "buffer sealing strip" suitable for attachment to a bent portion with a relatively small radius of curvature has been proposed.
しかしながら、上記断面形状が均一な弾性シー
ル体１は、車体開口側縁７２における屈曲部７５
に装着した場合、シワが生じたり、シール性が不
完全となる問題点があつた。
However, the elastic seal body 1 having a uniform cross-sectional shape has a bent portion 75 at the side edge 72 of the vehicle body opening.
When it is attached to a container, there are problems such as wrinkles and incomplete sealing.
また、前記特公昭56−43175号公報並びに実公
昭59−17714号公報にかかる緩衝密封条片は、開
口側縁７２の直線部７４並びに曲線部７３（第１
０図中のX1領域）と、比較的小さな曲率半径の
屈曲部７５（第１０図中のX2領域）とでは、開
口側縁７２に装着した状態が若干異なる。 Furthermore, the buffer sealing strips disclosed in Japanese Patent Publication No. 56-43175 and Utility Model Publication No. 59-17714 have a linear portion 74 of the opening side edge 72 and a curved portion 73 (the first
The state of attachment to the opening side edge 72 is slightly different between the bent portion 75 having a relatively small radius of curvature (X 2 region in FIG. 10) (X 1 region in FIG. 10).
即ち、直線部分である上記X1領域に装着した
弾性シール体は、後述する第６図に示すごとく、
中空シール部３が、ドアの閉鎖係止部７１が弾接
しない状態では、断面形状に殆ど変化がない。 That is, as shown in FIG. 6, which will be described later, the elastic sealing body attached to the above-mentioned region X1 , which is a straight line,
When the hollow seal portion 3 is not in elastic contact with the closing locking portion 71 of the door, there is almost no change in the cross-sectional shape.
しかしながら、屈曲部７５の上記X2領域に装
着した弾性シール体１は、その中空シール部３が
変位してしまう。なお、図中符号４は係止部、５
は補強用芯金を示す。 However, the hollow seal portion 3 of the elastic seal body 1 attached to the X 2 region of the bent portion 75 is displaced. In addition, the code 4 in the figure is a locking part, and 5
indicates reinforcing core metal.
そのため、このX2領域では、第８図に示すご
とく、中空シール部２０の先端部分２１がドアの
閉鎖係止部７１側へ突出した状態となり、大きく
変位する。その結果、第９図に示すごとく、ドア
の閉鎖係止部７１が中空シール部２０に係止した
状態、即ちドアを閉めた状態では、若干座屈して
中空シール部２０の先端部２１が十分に縮小しな
い。それ故、ドアの閉止性とシール性と美観が悪
くなり、またドアの反力である閉鎖負荷が大きく
なる問題点があつた。 Therefore, in this X 2 region, as shown in FIG. 8, the tip portion 21 of the hollow seal portion 20 is in a state of protruding toward the closing locking portion 71 of the door, and is largely displaced. As a result, as shown in FIG. 9, when the closing locking portion 71 of the door is locked to the hollow seal portion 20, that is, when the door is closed, the tip portion 21 of the hollow seal portion 20 is slightly buckled. do not shrink to Therefore, there were problems in that the closing performance, sealing performance, and aesthetics of the door were deteriorated, and the closing load, which was a reaction force of the door, was increased.
本発明は、上記従来技術の問題点に鑑みてなさ
れたもので、比較的小なる曲率半径を有する屈曲
部の車体開口側縁に装着してもシール体に優れ、
該屈曲部がドア閉止後に座屈したり、シワが生ず
ることのない弾性シール体を提供しようとするも
のである。 The present invention has been made in view of the problems of the prior art described above, and provides an excellent sealing body even when attached to the side edge of the vehicle body opening of a bent portion having a relatively small radius of curvature.
It is an object of the present invention to provide an elastic seal body in which the bent portion does not buckle or wrinkle after the door is closed.
〔問題点の解決手段〕
本発明は、比較的直線的な直線部とこれと連続
する比較的小なる曲率半径の屈曲部とからなる車
体開口側縁に装着するウエルト部と該ウエルト部
に突設した中空シール部とからなる弾性シール体
であつて、
該弾性シール体は前記直線部に装着する所定の
断面形状を有する所要長の直線連続部L1と、前
記屈曲部に装着する所定の断面形状を有する所要
長の屈曲連続部L2とを順次有すると共に、
上記直線連続部L1の領域の中空シール部は、
上記ウエルト部における車体開口側縁の挿入溝内
の基準線Ｇと略平行な長軸Ｈ上に中心点O1とO2
とを中心とする大円弧小円弧とを、該円弧に接す
る直線または円弧状接線によつて接続してなる卵
形曲線Ｅを含むと共に、該直線連続部L1の領域
の中空シール部はほぼ等しい肉厚の断面形状S1を
有し、
一方、前記屈曲連続部L2の領域の中空シール
部は、前記直線連続部L1と同様の卵形曲線Ｅを
含む断面形状を有すると共に、該卵形曲線Ｅにお
ける大円弧側の肉厚に付加して、
上記領域の他の中空シール部の肉圧よりも50〜
100％大なる膨肉部を形成した断面形状S2を有し、
かつ上記中空シール部は隣接するウエルト部の
上端部近傍に小なる中空シール部を有することを
特徴とする弾性シール体にある。[Means for Solving Problems] The present invention provides a welt portion attached to the side edge of the vehicle body opening, which is composed of a relatively straight straight portion and a continuous bent portion with a relatively small radius of curvature, and a welt portion that protrudes from the welt portion. The elastic seal body is composed of a straight continuous part L1 having a predetermined length and a predetermined cross-sectional shape, which is attached to the straight part, and a predetermined straight part L1 which is attached to the bent part. The hollow seal portion in the region of the linear continuous portion L1 has sequentially a bent continuous portion L2 having a cross-sectional shape and a required length, and
Center points O 1 and O 2 are located on the long axis H that is approximately parallel to the reference line G in the insertion groove on the side edge of the vehicle body opening in the welt part.
It includes an oval curve E formed by connecting a large arc and a small arc centered at The hollow seal portion in the region of the bent continuous portion L2 has a cross-sectional shape S1 with equal wall thickness, and the hollow seal portion in the area of the bent continuous portion L2 has a cross-sectional shape including an oval curve E similar to the linear continuous portion L1 , and In addition to the wall thickness on the large arc side of the oval curve E, the wall pressure is 50 to
The elastic seal body has a cross-sectional shape S2 in which a 100% large swelling part is formed, and the hollow seal part has a small hollow seal part near the upper end of an adjacent welt part. .
本発明において最も注目すべきことは、上記卵
形曲線Ｅにおける大円弧側の肉厚に付加して膨肉
部を形成してあること、及び上記中空シール部
は、隣接するウエルト部の上端部近傍に小なる中
空シール部を有していることである。 What is most noteworthy about the present invention is that a swelling part is formed in addition to the wall thickness on the large arc side of the oval curve E, and that the hollow seal part is formed at the upper end of the adjacent welt part. It has a small hollow seal part nearby.
上記膨肉部が、他の中空部の肉厚よりも50％未
満であるとシール性が充分でなくなり、一方100
％を越えるとシール材の弾性が増大し過ぎてドア
の反力が大きくなり過ぎシール性が悪くなる。 If the thickness of the swelling part is less than 50% of the thickness of other hollow parts, the sealing performance will not be sufficient;
%, the elasticity of the sealing material increases too much, the reaction force of the door becomes too large, and the sealing performance deteriorates.
上記卵形曲線Ｅを含む断面形状S1とS2として
は、例えば、第１図および第２図に示すごとく、
上記卵形曲線Ｅが上記中空シール部の肉厚部内に
内包される場合である。 For example, the cross-sectional shapes S 1 and S 2 including the oval curve E are as shown in FIGS. 1 and 2.
This is a case where the oval curve E is included within the thick part of the hollow seal part.
また、図示していないが、上記卵形曲線Ｅが上
記中空シール部の外壁側に外接する場合もある。 Although not shown, the oval curve E may circumscribe the outer wall of the hollow seal portion.
しかして、上記卵形曲線Ｅとは、第７図に示す
ごとく、楕円Ｍのものから、これより膨らんで一
方が、やや円形に近く他方が、やや偏平な曲線で
作られる楕円Ｎなどがある。 As shown in Fig. 7, the above-mentioned egg-shaped curve E includes an ellipse N, which is made from an ellipse M, and has one side slightly circular and the other side a slightly flattened curve. .
そして、これらの卵形曲線Ｅは、前記のごとく
中心点O1の半径r1と中心点O2の半径r2によつて作
られる大円弧と小円弧により形成される。 These oval curves E are formed by a large arc and a small arc created by the radius r 1 of the center point O 1 and the radius r 2 of the center point O 2 as described above.
一方、上記基準線Ｇと長軸Ｈとが略平行である
態様として、基準線Ｇに対して長軸Ｈが若干傾斜
した直線を示す場合がある。したがつて、上記
O1とO2との双方が、基準線Ｇに対して若干傾斜
した長軸Ｈ上に存在する場合もあり得る。 On the other hand, as a mode in which the reference line G and the long axis H are substantially parallel, there is a case where the long axis H is a straight line slightly inclined with respect to the reference line G. Therefore, the above
Both O 1 and O 2 may exist on the long axis H that is slightly inclined with respect to the reference line G.
更に、上記弾性シール体は、例えばその成形時
において、押出オリフイスの断面を適宜変更する
よう配置された調節装置を有する押出成形機を用
いて製造する。この方法によれば、連続製造が可
能で、また量産に適した長尺物を生産性よく製造
することが可能である。 Furthermore, the elastic seal is produced, for example, using an extrusion molding machine having an adjusting device arranged to suitably change the cross section of the extrusion orifice during its molding. According to this method, continuous manufacturing is possible, and long products suitable for mass production can be manufactured with high productivity.
本発明にかかる弾性シール体は、屈曲連続部
L2の中空シール部における大円弧側の肉厚を小
円弧側の肉厚よりも50〜100％大きく形成してあ
るので、シール体１の弾性が増大する。そのた
め、ドアと反力が小さくなり、シール性が向上す
る。また、開閉部の比較的小なる曲率半径屈曲部
の車体開口側縁に密接して、良好な状態で装着す
ることができる。
The elastic seal body according to the present invention has a continuous bent portion.
Since the wall thickness on the large arc side of the hollow seal portion L2 is made 50 to 100% larger than the wall thickness on the small arc side, the elasticity of the seal body 1 is increased. Therefore, the door reaction force is reduced and sealing performance is improved. Further, the opening/closing part can be mounted in close contact with the side edge of the vehicle body opening of the bending part with a relatively small radius of curvature, and can be mounted in a good condition.
即ち、上記屈曲部において中空シール部が座屈
したり突出変位を生ずることもなく、また平坦化
してシワを生ずることもない。 That is, the hollow seal portion does not buckle or protrude at the bent portion, nor does it become flat and wrinkled.
また、小なる中空シール部を有することによ
り、比較的小なる曲率半径の屈曲部に装着しても
中空シール部が突出変位したり、また閉止後にお
いても座屈しない。 Furthermore, by having a small hollow seal portion, the hollow seal portion will not protrude or displace even when mounted on a bent portion with a relatively small radius of curvature, and will not buckle even after closing.
ここで、座屈とは異常な形状に変形することを
いい、上記突出変位とは横方向に変形することを
いう。 Here, buckling refers to deformation into an abnormal shape, and the above-mentioned protrusion displacement refers to deformation in the lateral direction.
また、当該部分（小なる中空シール部分）には
シワを生ぜず、シール性が良い。 Further, the part (small hollow seal part) does not produce wrinkles and has good sealing properties.
また、本発明の弾性シール体においては、直線
連続部L1と屈曲連続部L2とが、第３図に示すご
とく、装着すべき開口側縁の形状（直線部或いは
屈曲部）に応じて順次形成されている。 In addition, in the elastic seal body of the present invention, the linear continuous portion L1 and the bent continuous portion L2 are arranged according to the shape of the opening side edge (straight portion or bent portion) to be attached, as shown in Fig. 3. are formed sequentially.
したがつて、本発明によれば、特に問題となる
上記屈曲部において、ドアの反力が小さくなり、
またドアのシール性を向上することができる。そ
して、従来のように、当該部分に発泡体のような
パツトを充填する必要もなくなる。 Therefore, according to the present invention, the reaction force of the door is reduced at the bending portion, which is particularly problematic.
Furthermore, the sealing performance of the door can be improved. Further, there is no need to fill the relevant part with a pad such as a foam as in the conventional case.
また、本発明によれば、比較的小なる曲率半径
屈曲部において、弾性シール体が車体開口側縁か
ら外れて座屈したり突出変位を生ずることがない
ので、ドアのしまり性が良く、ドア開口時におけ
る美観を損なうこともない。また、弾性シール体
が座屈したり、突出変位を生じないので、耐久性
にも優れている。 Further, according to the present invention, the elastic seal body does not come off the side edge of the vehicle body opening and buckle or protrude at the bent portion with a relatively small radius of curvature, so the door closes well and the door opens. It does not lose its beauty over time. Furthermore, since the elastic seal body does not buckle or protrude, it has excellent durability.
本発明の実施例にかかる弾性シール体を、第１
図〜第６図を用いて説明する。なお、第１０図お
よび第１１図を便宜上参照しながら説明する。本
例にかかる弾性シール体１は、第３図に示すごと
く、直線連続部L1と屈曲連続部L2とを順次有す
るものである。しかして、直線連続部L1におけ
るＡ−Ａ断面は第２図に示すごとき断面形状S1
を、また屈曲連続部L2におけるＢ−Ｂ断面は第
１図に示すごとき、他の中空部よりも肉厚が約50
％大きい膨肉部３０を有する断面形状S2である。
以下、これを詳述する。
The elastic seal body according to the embodiment of the present invention is
This will be explained using FIGS. The explanation will be made with reference to FIG. 10 and FIG. 11 for convenience. As shown in FIG. 3, the elastic seal body 1 according to this example has a straight continuous portion L1 and a bent continuous portion L2 in this order. Therefore, the A-A cross section at the linear continuous portion L1 has a cross-sectional shape S1 as shown in FIG.
Also, as shown in Figure 1, the B-B cross section at the continuous bending part L2 is about 50 mm thicker than the other hollow parts.
The cross-sectional shape S 2 has a % larger expanded portion 30 .
This will be explained in detail below.
まず、弾性シール体１は、上記両連続部L1，
L2いずれの領域においても、第１図及び第２図
に示すごとく、前記開閉部７０の車体開口側縁７
２（第１０図）に装着するためのウエルト部２
と、該ウエルト部２に突出した中空シール部３と
からなるものである。 First, the elastic seal body 1 has the above-mentioned two continuous parts L 1 ,
L 2 In any area, as shown in FIGS. 1 and 2, the vehicle body opening side edge 7 of the opening/closing portion 70
2 (Fig. 10) Welt part 2 for attaching to
and a hollow seal portion 3 protruding from the welt portion 2.
そして、前記車体開口側縁７２の直線部分であ
るX1領域（第１０図）に装着する直線連続部L1
の領域において、その中空シール部３は、第２図
に示すごとく、上記ウエルト部２の開口側縁挿入
溝８内の基準線Ｇと略平行な長軸Ｈ上に中心O1
とO2とを中心とする半径r1，r2の大円弧３３と小
円弧３４とからなる卵形曲線Ｅを含む断面形状S1
を有する。この卵形曲線Ｅは、中空シール部３の
外壁３２と内壁３１との間にあり、上記大円弧３
３と小円弧３４とを該円弧に接する直線又は円弧
状接線によつて接続したものである。また、この
直線連続部L1の上記断面形状S1は、ほぼ等しい
肉厚により形成されている。 Then, a linear continuous portion L 1 is attached to the X 1 area (FIG. 10), which is a linear portion of the side edge 72 of the vehicle body opening.
As shown in FIG. 2, the hollow seal portion 3 is centered on the long axis H substantially parallel to the reference line G in the opening side edge insertion groove 8 of the welt portion 2 .
A cross-sectional shape S 1 including an oval curve E consisting of a large arc 33 and a small arc 34 with radii r 1 and r 2 centered on and O 2
has. This oval curve E is located between the outer wall 32 and the inner wall 31 of the hollow seal portion 3, and is located between the large arc 3
3 and a small circular arc 34 are connected by a straight line or a circular tangent tangent to the circular arc. Further, the above-mentioned cross-sectional shape S 1 of this linear continuous portion L 1 is formed with approximately equal wall thickness.
上記卵形曲線Ｅが、中空シール部の外壁と内壁
との間に含まれる態様を更に詳述すると次のとお
りである。 The aspect in which the oval curve E is included between the outer wall and the inner wall of the hollow seal portion will be described in more detail as follows.
即ち、第２図に示すごとく、上記直線連続部
L1における卵形曲線Ｅのうち、大円弧３３側の
曲線（鎖線部分）は、その中空シール部の外壁３
２１と内壁３１１との間に内包されている。ま
た、上記卵形曲線Ｅのうち、小円弧３４側の曲線
（鎖線部分）は、その中空シール部の外壁３２２
と内壁３１２との間に内包されている。このよう
にして、上記直線連続部L1における中空シール
部３は、卵形曲線Ｅを含む断面形状S1を有する。 That is, as shown in FIG.
Of the oval curve E in L 1 , the curve on the large arc 33 side (dashed line part) is the outer wall 3 of the hollow seal part.
21 and the inner wall 311. Furthermore, of the oval curve E, the curve on the small arc 34 side (dashed line portion) is the outer wall 322 of the hollow seal portion.
and the inner wall 312. In this way, the hollow seal portion 3 in the linear continuous portion L 1 has a cross-sectional shape S 1 including the oval curve E.
また、前記開口側縁７２の屈曲部７５のX2領
域（第１０図）に装着する屈曲連続部L2の領域
において、その中空シール部３０は、第１図に示
すごとく、上記直線連続部L1の断面形状S1（第２
図）と同様に、大円弧３３と小円弧３４とからな
る卵形曲線Ｅを含む断面形状S2を有する。ここに
注目すべきことは、この断面形状S2は同図に示す
ごとく大円弧３３が小円弧３４の肉厚よりも約50
％大なる膨肉部３０を有していることである。即
ち、上記S1における外壁３２１（内側の実線で示
す）よりも外側へ付加された、他の中空部よりも
約50％大なる膨肉部３０を有することである。 Further, in the area of the bent continuous part L2 attached to the X2 area (FIG. 10) of the bent part 75 of the opening side edge 72, the hollow seal part 30 is attached to the straight continuous part as shown in FIG. Cross-sectional shape S 1 of L 1 (second
Similar to the figure), it has a cross-sectional shape S2 including an oval curve E consisting of a large arc 33 and a small arc 34. What should be noted here is that in this cross-sectional shape S2 , the thickness of the large arc 33 is approximately 50 mm thicker than that of the small arc 34, as shown in the same figure.
% larger expanded portion 30. That is, it has an expanded portion 30 which is added to the outside of the outer wall 321 (indicated by the inner solid line) in S1 and is approximately 50% larger than the other hollow portions.
上記卵形曲線Ｅが、屈曲連続部L2における中
空シール部３の外壁と内壁との間に含まれる態様
について詳述すると次の通りである。 The manner in which the oval curve E is included between the outer wall and the inner wall of the hollow seal portion 3 in the continuous bent portion L2 will be described in detail as follows.
即ち、第１図に示すごとく、上記卵形曲線Ｅの
うち、大円弧３３側の曲線（鎖線部分）は、その
中空シール部３の外壁３０１と内壁３１１との間
に内包されている。また、上記卵形曲線Ｅのう
ち、小円弧３４側の曲線は、その中空シール部の
外壁３２２と内壁３１２との間に内包されてい
る。このようにして、上記屈曲連続部L2におけ
る中空シール部３は、卵形曲線Ｅを含む断面形状
S2を有する。 That is, as shown in FIG. 1, of the oval curve E, the curve on the large arc 33 side (dashed line portion) is included between the outer wall 301 and the inner wall 311 of the hollow seal portion 3. Further, of the oval curve E, the curve on the small arc 34 side is included between the outer wall 322 and the inner wall 312 of the hollow seal portion. In this way, the hollow seal portion 3 in the bent continuous portion L2 has a cross-sectional shape including the oval curve E.
Has S 2 .
上記のごとく、本例にかかる弾性シール体１の
最大の特徴は、前記直線連続部L1の中空シール
部３がその外壁３２と内壁３１との間に上記卵形
曲線Ｅを含んだ状態でほぼ等しい肉厚の断面形状
S1を呈するのに対して、前記屈曲連続部L2の中
空シール部３は、上記卵形曲線Ｅの大円弧３３側
に付加した、膨肉部３０を形成してなる断面形状
S2を有することにある。即ち、上記膨肉部は、他
の部分（中空部分）よりもほぼ50％大きい。 As mentioned above, the greatest feature of the elastic seal body 1 according to this example is that the hollow seal portion 3 of the linear continuous portion L1 includes the oval curve E between its outer wall 32 and inner wall 31. Cross-sectional shape with almost equal wall thickness
S1 , whereas the hollow seal portion 3 of the bent continuous portion L2 has a cross-sectional shape formed by forming an expanded portion 30 added to the large arc 33 side of the oval curve E.
It consists in having S 2 . That is, the expanded portion is approximately 50% larger than the other portion (hollow portion).
また、上記ウエルト部２は一方が開口した略Ｕ
字形をしている。そして、ウエルト部２におけ
る、車体開口側縁７２への挿入溝８内には車体開
口側縁を係止するための係止爪４が設けられてい
る。また、ウエルト部２は、その本体に補強用の
芯金５を内包している。更に、上記中空シール部
３は、その隣接する上記ウエルト部２の上端部近
傍に小なる中空シール部６を有している。このウ
エルト部２、小なる中空シール部６は前記両連続
部L1，L2とも同じである。 Further, the welt portion 2 has a substantially U-shaped opening on one side.
It has a letter shape. In the welt portion 2, a locking pawl 4 for locking the vehicle body opening side edge 72 is provided in an insertion groove 8 that is inserted into the vehicle body opening side edge 72. Further, the welt portion 2 includes a reinforcing core metal 5 in its main body. Further, the hollow seal part 3 has a small hollow seal part 6 near the upper end of the adjacent welt part 2. The welt portion 2 and the small hollow seal portion 6 are the same as both the continuous portions L 1 and L 2 .
また、本弾性シール体１は、ウエルト部２はソ
リツドゴムで、中空シール部３及び小なる中空シ
ール部６はスポンジゴムで作られている。 Further, in the present elastic seal body 1, the welt portion 2 is made of solid rubber, and the hollow seal portion 3 and the small hollow seal portion 6 are made of sponge rubber.
本例にかかる弾性シール体１は、上記のごと
く、構成されているので、側縁７２の比較的小な
る曲率半径の屈曲部７５に装着しても中空シール
部３が突出変位したり、また開止後においても座
屈しない。また、当該部分にシワを生ぜず、シー
ル性が良い。 Since the elastic seal body 1 according to the present example is configured as described above, even if it is attached to the bent portion 75 of the side edge 72 having a relatively small radius of curvature, the hollow seal portion 3 will not protrude or be displaced. Does not buckle even after opening and closing. In addition, there is no wrinkles in the area, and the sealing performance is good.
即ち、第４図に示すごとく、弾性シール体１の
屈曲連続部L2は、ドアの閉鎖係止部７１が接触
しない場合においては、ウエルト部２を車体開口
側縁７２に挿着しても、中空シール部３は殆ど弾
性変形しない。これは、本中空シール体３が大円
弧３３側に膨肉部３０を有しているためである。 That is, as shown in FIG. 4, the continuous bent portion L 2 of the elastic seal body 1 does not come into contact with the closing locking portion 71 of the door even if the welt portion 2 is inserted into the side edge 72 of the vehicle body opening. , the hollow seal portion 3 hardly undergoes elastic deformation. This is because the hollow seal body 3 has the expanded portion 30 on the large arc 33 side.
また、第５図に示すごとく、該屈曲連続部L2
の中空シール部３にドアの閉鎖係止部７１が弾接
した場合においては、上記膨肉部３０があるた
め、中空シール部３は変位したり、突出弾性変位
しない。その結果、前記屈曲部７５（第１０図の
Ｄ−Ｄ部分）においてもドアの反力は小さくなつ
て、ドアのしまり性が良好となる。また、ドアの
シール性も極めて良好となる。 Moreover, as shown in FIG. 5, the continuous bent portion L 2
When the closing locking part 71 of the door comes into elastic contact with the hollow seal part 3, the hollow seal part 3 does not displace or protrude elastically because of the swelling part 30. As a result, the reaction force of the door is reduced also at the bent portion 75 (section DD in FIG. 10), and the door closes well. Furthermore, the sealing performance of the door is also extremely good.
次に、第６図に示すごとく、直線連続部L1の
部分の弾性シール体１は、ドアの閉鎖係止部７１
が弾接しない場合においては、ウエルト部２の挿
入溝８内を車体開口側縁７２に装着しても、従来
の弾性シール体１のように横方向に、突出変位
（第８図）することはない。また、該直線連続部
L1における卵形曲線Ｅを含む中空シール部３が、
ドアの閉鎖係止部７１と密着する。 Next, as shown in FIG. 6, the elastic seal body 1 at the linear continuous portion L1
If the elastic seal body 1 does not come into elastic contact, even if the insertion groove 8 of the welt part 2 is attached to the side edge 72 of the vehicle body opening, the elastic seal body 1 will not protrude laterally (FIG. 8) like the conventional elastic seal body 1. There isn't. In addition, the linear continuous part
The hollow seal portion 3 including the oval curve E at L1 is
It comes into close contact with the closing locking part 71 of the door.
したがつて、本発明によれば、車体開口側縁７
２における比較的小なる曲率半径の屈曲部（X2
領域）に対しても、また直接部分（X1領域）に
対しても弾性シール体が車体開口側縁７２から外
れることはない。また中空シール部が、座屈した
り突出弾性変位を起こすことがなく、ドア開放時
においても美観の優れた弾性シール体を提供する
ことができる。 Therefore, according to the present invention, the vehicle body opening side edge 7
2 with a relatively small radius of curvature (X 2
The elastic seal body does not come off from the vehicle body opening side edge 72, either for the area (X1 area) or for the direct portion ( X1 area). Furthermore, the hollow seal portion does not buckle or undergo any protruding elastic displacement, making it possible to provide an elastic seal body that is aesthetically pleasing even when the door is opened.
なお、上記中空シール部３は、卵形曲線Ｅを含
んでいる。また、同図では示していないが、上記
卵形曲線Ｅは、大円弧側の外壁３０１と小円弧側
の外壁３２２とに外接することもある。 Note that the hollow seal portion 3 includes an oval curve E. Further, although not shown in the figure, the oval curve E may be circumscribed by the outer wall 301 on the large arc side and the outer wall 322 on the small arc side.
第１図〜第６図は、本発明の実施例にかかる弾
性シール体を示し、第１図は第３図のＢ−Ｂ線に
沿う失視断面図、第２図は第３図のＡ−Ａ線に沿
う失視断面図、第３図は第１図および第２図の左
側面図、第４図〜第６図はその装着時の断面図、
第７図は、中空シール部に含まれる本発明にかか
る卵形曲線の限界曲線を示す断面図、第８図およ
び第９図は従来例の装着時の断面図、第１０図は
自動車のフロント開閉部の側面説明図、第１１図
は従来の弾性シール体の側面図である。
１……弾性シール体、２……ウエルト部、３…
…中空シール部、３０……膨肉部、５……補強用
芯金、６……小なる中空シール部、７……車体、
７２……車体開口側縁、８……挿入溝、Ｅ……卵
形曲線、L1……直線連続部、L2……屈曲連続部。
1 to 6 show an elastic sealing body according to an embodiment of the present invention, FIG. 1 is a sectional view taken along line BB in FIG. 3, and FIG. - A cross-sectional view of the loss of vision along line A, FIG. 3 is a left side view of FIGS. 1 and 2, and FIGS.
FIG. 7 is a sectional view showing the limit curve of the oval curve according to the present invention included in the hollow seal portion, FIGS. 8 and 9 are sectional views of the conventional example when installed, and FIG. 10 is the front of the automobile. An explanatory side view of the opening/closing part, FIG. 11 is a side view of a conventional elastic seal body. 1...Elastic seal body, 2...Welt part, 3...
...Hollow seal part, 30... Thickening part, 5... Reinforcement core bar, 6... Small hollow seal part, 7... Car body,
72... Body opening side edge, 8... Insertion groove, E... Oval curve, L 1 ... Straight continuous part, L2 ... Bent continuous part.
Claims (1)
的小なる曲率半径の屈曲部とからなる車体開口側
縁に装着するウエルト部と該ウエルト部に突設し
た中空シール部とからなる弾性シール体であつ
て、 該弾性シール体は前記直線部に装着する所定の
断面形状を有する所要長の直線連続部L1と、前
記屈曲部に装着する所定の断面形状を有する所要
長の屈曲連続部L2とを順次有すると共に、 上記直線連続部L1の領域の中空シール部は、
上記ウエルト部における車体開口側縁の挿入溝内
の基準線Ｇと略平行な長軸Ｈ上に中心点O1とO2
とを中心とする大円弧と小円弧とを、該円弧に接
する直線または円弧状接線によつて接続してなる
卵形曲線Ｅを含むと共に、該直線連続部L1の領
域の中空シール部はほぼ等しい肉厚の断面形状S1
を有し、 一方、前記屈曲連続部L2の領域の中空シール
部は、前記直線連続部L1と同様の卵形曲線Ｅを
含む断面形状を有すると共に、該卵形曲線Ｅにお
ける大円弧側の肉厚に付加して、 上記領域の他の中空シール部の肉厚よりも50〜
100％大なる膨肉部を形成した断面形状S2を有し、 かつ上記中空シール部は隣接するウエルト部の
上端部近傍に小なる中空シール部を有することを
特徴とする弾性シール体。[Scope of Claims] 1. A welt portion attached to the side edge of the opening of the vehicle body, consisting of a relatively straight straight portion and a continuous bent portion with a relatively small radius of curvature, and a hollow seal protruding from the welt portion. an elastic seal body comprising: a linear continuous part L1 of a required length having a predetermined cross-sectional shape that is attached to the straight portion; and a linear continuous portion L1 having a predetermined cross-sectional shape that is attached to the bent portion. The hollow seal portion in the region of the linear continuous portion L1 has sequential bent continuous portions L2 of the required length, and
Center points O 1 and O 2 are located on the long axis H that is approximately parallel to the reference line G in the insertion groove on the side edge of the vehicle body opening in the welt part.
It includes an oval curve E formed by connecting a large arc and a small arc centered at , by a straight line or arc-shaped tangent to the arc, and the hollow seal portion in the area of the linear continuous portion L1 is Cross-sectional shape S 1 with almost equal wall thickness
On the other hand, the hollow seal portion in the region of the bent continuous portion L2 has a cross-sectional shape including an oval curve E similar to the straight line continuous portion L1 , and the large arc side of the oval curve E In addition to the wall thickness of
An elastic seal body having a cross-sectional shape S2 in which a 100% large expanded portion is formed, and the hollow seal portion has a small hollow seal portion near the upper end of an adjacent welt portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62290388A JPH01132441A (en) | 1987-11-17 | 1987-11-17 | Elastic seal body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62290388A JPH01132441A (en) | 1987-11-17 | 1987-11-17 | Elastic seal body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01132441A JPH01132441A (en) | 1989-05-24 |
| JPH0561135B2 true JPH0561135B2 (en) | 1993-09-03 |
Family
ID=17755368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62290388A Granted JPH01132441A (en) | 1987-11-17 | 1987-11-17 | Elastic seal body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01132441A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2554898Y2 (en) * | 1992-01-30 | 1997-11-19 | 西川ゴム工業株式会社 | Seaming Welt |
| JP2555527Y2 (en) * | 1992-01-31 | 1997-11-26 | 西川ゴム工業株式会社 | Seaming Welt |
| JP5568795B2 (en) * | 2008-12-10 | 2014-08-13 | 西川ゴム工業株式会社 | Weather strip for automobile |
| JP5582953B2 (en) * | 2010-10-12 | 2014-09-03 | 西川ゴム工業株式会社 | Opening seal |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917714Y2 (en) * | 1978-11-08 | 1984-05-23 | 東海興業株式会社 | buffer sealing strip |
-
1987
- 1987-11-17 JP JP62290388A patent/JPH01132441A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01132441A (en) | 1989-05-24 |
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