JPS60114856A - Molded workpiece having flexible bent part - Google Patents
Molded workpiece having flexible bent partInfo
- Publication number
- JPS60114856A JPS60114856A JP58222632A JP22263283A JPS60114856A JP S60114856 A JPS60114856 A JP S60114856A JP 58222632 A JP58222632 A JP 58222632A JP 22263283 A JP22263283 A JP 22263283A JP S60114856 A JPS60114856 A JP S60114856A
- Authority
- JP
- Japan
- Prior art keywords
- molded product
- bent
- bent part
- bent portion
- solid
- 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
Links
- 239000007787 solid Substances 0.000 claims abstract description 29
- 238000007665 sagging Methods 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000011521 glass Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
- E05D1/00—Pinless hinges; Substitutes for hinges
- E05D1/02—Pinless hinges; Substitutes for hinges made of one piece
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/62—Holders for the original
- G03B27/6207—Holders for the original in copying cameras
- G03B27/6221—Transparent copy platens
- G03B27/6228—Platen covers
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2999/00—Subject-matter not otherwise provided for in this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Holders For Sensitive Materials And Originals (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Closures For Containers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は可撓性の屈曲部を有する成形加工品、詳細には
、厚さのうすい屈曲部を有していてこの屈曲部で屈曲さ
せられる成形加工品の改良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved molded product having a flexible bent portion, and more particularly, to an improved molded product that has a thin bent portion and can be bent at the bent portion. .
例えば、このような成形加工品としては、複写機等の原
稿圧着板があるので以下においてこれを例にして説明す
るが、この原稿圧着板に限定されるものではない。For example, as such a molded product, there is a document pressure plate of a copying machine, etc., and this will be explained below as an example, but the present invention is not limited to this document pressure bonding plate.
先ずＳ第゛１図〜第２図に基づいて、本発明が適用され
る複写機１の構成を簡単に説明する。図中、２は原稿圧
着板で、ポリプロピレン等の樹脂によってヒンジ部２
ａｔ’２ ｂｓ把手２ｅと共に一体的に成形されており
、一端で複写機本体に固着されている。そのほか、６は
モルトブレン（商品名）等のクッション性を有する材料
から成る原稿押え板で、その表面には白色シート４が貼
り合わせである。６は原稿載置用透明材（ガラス）、７
は該ガラス６を含む原稿載置台のスライドをガイドする
レール、８は該レール７を支持する板、９は該ガラス６
を受けるレールである。First, the configuration of a copying machine 1 to which the present invention is applied will be briefly explained based on FIGS. In the figure, 2 is a document pressure bonding plate, and the hinge part 2 is made of resin such as polypropylene.
at'2 bs It is integrally formed with the handle 2e, and is fixed to the main body of the copying machine at one end. In addition, reference numeral 6 denotes a document holding plate made of a cushioning material such as Maltbren (trade name), and a white sheet 4 is pasted on the surface thereof. 6 is a transparent material (glass) for placing the original, 7
8 is a plate that supports the rail 7, and 9 is the glass 6.
It is a rail that receives.
そして、原稿圧着板２は第６図のように、ヒンージ部２
８で屈曲して開放位置へ起こされ、ヒンジ部２ａのソリ
ッド部２ａ２．２ａ５（第４図参照）同志が当接して第
３図の状態に維持される。ヒンジ部２ｂでも同様にソリ
ッド部同志が当接して図の状態が維持される。そこで、
複写すべき原稿Ｐをガラス６の上に置き、原稿圧着板２
を引き倒して原稿Ｐを押圧すれば所定の複写を行うこと
ができる。Then, the original pressure bonding plate 2 is attached to the hinge portion 2 as shown in FIG.
8 and raised to the open position, and the solid parts 2a2, 2a5 (see FIG. 4) of the hinge part 2a abut against each other and are maintained in the state shown in FIG. 3. Similarly, in the hinge portion 2b, the solid portions come into contact with each other and the state shown in the figure is maintained. Therefore,
Place the original P to be copied on the glass 6, and press the original pressure bonding plate 2.
By pulling down and pressing the document P, a predetermined copy can be made.
従って、すでに明らかな様に、複写機の原稿圧着板２の
開閉動作は頻繁に行われるので、ヒンジｍ ２ ” ｔ
２ ｂの強度、特に繰り返し使用に対する耐久性が要
求さ”れる。Therefore, as is already clear, since the opening and closing operations of the document pressure plate 2 of the copying machine are performed frequently, the hinge m 2 '' t
2b strength is required, especially durability against repeated use.
しかるに、従来の原稿圧着板２の詳細な構造は第４図に
示す通りであって、繰り返し使用に対する耐久性の点で
難点があった。However, the detailed structure of the conventional document pressure bonding plate 2 is as shown in FIG. 4, which has a drawback in terms of durability against repeated use.
つまり、従来のヒンジ部２ａ（ヒンジ部２ｂについても
同様である）はフィルム状の平担な屈曲部２ａ１と一対
のソリッド部２ａ２ 、２８５とによって−Ｕ形に形成
されているのであるが、図のようにどの位置の断面形状
（第５図）も同一になるように本“り成されているので
、例えば第６図の状態において矢視Ａ方向の力が加えら
れた場合に、屈曲部２ａ１とソリッド部２ａ２ 、２ａ
５との端面での接合部ａ、ｂに応力が集中し易くなるた
めである。In other words, the conventional hinge part 2a (the same applies to the hinge part 2b) is formed into a -U shape by a film-like flat bent part 2a1 and a pair of solid parts 2a2 and 285. As shown in Fig. 5, the cross-sectional shape is the same at any position (Fig. 5), so if a force is applied in the direction of arrow A in the state shown in Fig. 6, the bent portion 2a1 and solid parts 2a2, 2a
This is because stress tends to be concentrated on the joints a and b at the end face with 5.
とのことを第６図、第７図に基づいて説明する。This will be explained based on FIGS. 6 and 7.
前述の】１゛ハリ、矢視Ａ方向の力が加えられるとソリ
ッド部２ａ３には当接点Ｃを支点とする旋回力が作用し
、屈曲部２ａ１にはＣ方向の張力が作用する。When a force in the direction of arrow A is applied to the solid portion 2a3, a turning force with the contact point C as a fulcrum acts on the solid portion 2a3, and a tension force in the direction C acts on the bent portion 2a1.
そして、この際加えた力がヒンジ部２ａの全域に渡り等
分布荷重として作用すれば、ヒンジ部を構成する拐質の
物性に依存することとなり、通常の操作や多少の衝撃で
破損することはない。しかし、現実には加えられた力が
ヒンジ部２ａＫ等価に作用することはなく、第１図に示
すように原稿圧着板２の把手部２ｅが左端に設けられて
いることからして、作用力Ａが原稿圧着板２の偏った一
部に加えられることが多く発生する。更に、任意位１４
を把手部として使用可能な構成を考えると、偏荷重が作
用すると考える方が自然である。そして１偏荷重が作用
した場合、単純な引つ張炊力（第６図）が屈曲部２ａ１
に作用するだけでなくて捩り力が発生し、この捩９力に
よって屈曲部２ａ１の接合部ａ、ｂには引き裂き力（剪
断力）Ｊ （第７図；ヒンジ部を長手方向に見た模式図
）を生ずることとなる。従って、この接合部ａ、ｂ付近
に若干でも傷があればその部分に応力集中が生じて引き
裂れ、又傷が無い場合でも屈曲部２ａ１とソリッド部２
ａ２゜２ａ３の接合部は成形状態が急激に変化する為に
白化等を生じ、そのために多少弱くなり引き裂きの出発
点となり易い。If the force applied at this time acts as a uniformly distributed load over the entire area of the hinge part 2a, it will depend on the physical properties of the particles that make up the hinge part, and it will not be damaged by normal operation or some impact. do not have. However, in reality, the applied force does not act equivalently on the hinge portion 2aK, and since the handle portion 2e of the original pressure bonding plate 2 is provided at the left end as shown in FIG. It often happens that A is applied to a biased part of the document pressure bonding plate 2. Furthermore, an arbitrary number of 14
Considering the configuration in which the handle can be used as a handle, it is natural to think that an unbalanced load acts on the handle. When an unbalanced load of 1 is applied, a simple tension force (Fig. 6) is applied to the bent portion 2a1.
A torsional force is generated in addition to the torsional force, and this torsional force causes a tearing force (shearing force) J at the joints a and b of the bent portion 2a1. (Fig.) will occur. Therefore, if there is even a slight flaw near the joints a and b, stress concentration will occur in that part and cause it to tear, and even if there is no flaw, the bent part 2a1 and the solid part 2
The a2゜2a3 joint part undergoes whitening due to rapid changes in the molding condition, which makes it somewhat weak and tends to become a starting point for tearing.
本発明は上述従来例の欠点に鑑みてなされたもので、引
き裂は強度が高い屈曲部を有する成形加工品を提供する
ことを目的とする。The present invention has been made in view of the drawbacks of the above-mentioned conventional examples, and an object of the present invention is to provide a molded product having a bent portion with high tear strength.
本発明の目的は、屈曲部の端面に対する応力の集中を避
けるような構成とすることによって達成される。The object of the present invention is achieved by providing a structure that avoids concentration of stress on the end face of the bent portion.
以下図示した実施例に基づいて本発明を説明する。The present invention will be explained below based on the illustrated embodiments.
先ず、第８図は第１の実施例の原稿圧着板２２の主要部
の斜視図、第９図は第８図のＥ矢視方向の側面図である
が、図において、２２ａはヒンジ部であって、フィルム
状の屈曲部２２ａ１、ソリッド部２２ａ２ 、２２ａＳ
、屈曲部２２ａ１の延長であるブリッジ状にたるんでい
る屈曲部２２ａ４から構成されている。First, FIG. 8 is a perspective view of the main parts of the document pressure plate 22 of the first embodiment, and FIG. 9 is a side view in the direction of arrow E in FIG. 8. In the figure, 22a is a hinge portion. There is a film-like bent part 22a1, solid parts 22a2, 22aS.
, a bent portion 22a4 that is sagging in the shape of a bridge, which is an extension of the bent portion 22a1.
そして、本実施例の特徴によれば、第９図にも示すよ５
ＶＣ％屈曲部２２ａ４の展開した長さくｌ＋α）は屈曲
部２２ａ１ の長さｔりよりも長くなるように構成され
ている。従って、第６図に示すような張力Ｃが屈曲部２
２ａ１に作用しても、屈曲部２２ａ４はたるんでいるの
で張力Ｃは作用しない。その結果、屈曲部２２ａ４の接
合部ａ 、ｂＫは引き裂き力が作用しない。According to the feature of this embodiment, as shown in FIG.
The developed length l+α) of the VC% bent portion 22a4 is configured to be longer than the length t of the bent portion 22a1. Therefore, the tension C as shown in FIG.
Even if it acts on 2a1, the tension C does not act on the bent portion 22a4 because it is slack. As a result, no tearing force acts on the joints a and bK of the bent portion 22a4.
第１０図、第１１図は各々が第８図の変形例を示し、第
１０図はブリッジ状にたるんだ屈曲部２２ａ４ に代っ
て屈曲部６２ａ４を波状にたるませたもので、第１１図
は屈曲部４２ａ４を円錐状にたるませたものである。10 and 11 each show a modification of FIG. 8, and FIG. 10 shows a bent portion 62a4 that is sagging in a wave shape instead of the bent portion 22a4 that is sagging in a bridge shape, and FIG. The curved portion 42a4 is slackened in a conical shape.
第１２図は第２の実施例の原稿圧着板５２の主要部の斜
視図であるが、屈曲部５２ａ４の端面５２ａ４−１が原
稿圧着板のソリッド部５２ａｚ ＋ ５２ａ５ の端面
５２ａ２−１ 、５２ａ３−１よりもへこんでいること
に特徴がある。この特徴は、原稿圧着板５２の外周の肉
厚が厚い場合に特に有効である。つまり、万一、ブリッ
ジ状のたるみが不十分であって引つ張９力が作用してし
まった場合でも、肉厚（縦方向に長い）が厚くて剛性の
高いところには屈曲部がないので、屈曲部の接合部ａ、
ｂＫ引き裂き力が作用することがない。反面、図の屈曲
部５２ａ４の端面５２ａ４−ＩＫ対向する位置のソリッ
ド部の肉厚（横方向に長い）は薄くてソリッド部が撓み
やすいので屈曲部５２ａ４に作用する張力はそれ程大き
くない。従って、接合部ａ、ｂには引き裂刃が作用しな
い。FIG. 12 is a perspective view of the main part of the document pressure bonding plate 52 of the second embodiment, and the end surface 52a4-1 of the bent portion 52a4 is the end surface 52a2-1, 52a3- of the solid portion 52az+52a5 of the document pressure bonding plate. It is characterized by being more concave than 1. This feature is particularly effective when the outer periphery of the document pressure bonding plate 52 is thick. In other words, even if the bridge-like slack is insufficient and a tensile force is applied, there will be no bends in areas where the wall thickness (longitudinal) is thick and rigid. Therefore, the joint a of the bent part,
bK tearing force does not act. On the other hand, the thickness (long in the lateral direction) of the solid portion at the position opposite to the end surface 52a4-IK of the bent portion 52a4 in the figure is thin and the solid portion is easily bent, so the tension acting on the bent portion 52a4 is not so large. Therefore, the tearing blade does not act on the joints a and b.
尚、ブリッジ状のたるみ罠代えて１第１０図に示すよう
な波状のたるみあ゛るいは第１１図に示すような円錐状
のたるみとしてもよい。Incidentally, instead of the bridge-shaped slack trap, a wave-like slack as shown in FIG. 10 or a conical slack as shown in FIG. 11 may be used.
第１６図は更に第６の実施例の斜視図で、第８図の実施
例の特徴に加えて、巾方向の端部付近において傾斜した
ソリッド部６２ａ５ 、６２１６を形成したことに特徴
がある。つまり、該ソリッド部６２ａｓ＊６２ａ６ は
該ソリッド部６２ａ２．６２ａ３に比較して角度θだけ
削られている。FIG. 16 is a perspective view of a sixth embodiment, which, in addition to the features of the embodiment of FIG. 8, is characterized by the formation of inclined solid portions 62a5 and 6216 near the ends in the width direction. In other words, the solid portion 62as*62a6 is shaved by an angle θ compared to the solid portions 62a2 and 62a3.
従って、原稿圧着板を第６図のように起立させた状態で
Ａ矢視方向の力を加えると、ソリッド部６２ａ２ とソ
リッド部６２ａ５に対応する屈曲部６２ａ１には第６図
に示すような引っ張り力Ｃが作用するが、Ｊ「１１曲部
６２ａ４には作用しない。つまりソリッド部６２ａ５
とソリッド部６２ａ６は当接せず、従って点Ｃを支点と
するモーメントが作用しないためである。Therefore, when a force is applied in the direction of arrow A with the original pressure bonding plate in an upright state as shown in FIG. 6, a tension as shown in FIG. Although force C acts, it does not act on J'11 curved portion 62a4. In other words, force C acts on solid portion 62a5.
This is because the solid portion 62a6 does not come into contact with the solid portion 62a6, and therefore a moment with the point C as a fulcrum does not act.
第１４図は更に第４の実施例の斜視図で、第１６図の実
施例の特徴に加えて、屈曲部７２ａ４の端面７２ａ４−
１が原稿圧着板のソリッド部６２ａ２．６２ａｓの端面
６２ａ２−１ 、６２３ｓ−１よりもへこんでいろとい
う特徴を有している。尚、この特徴の効果は前述の第１
２図の効果と同じであるので省略する。FIG. 14 is a perspective view of a fourth embodiment, in which, in addition to the features of the embodiment of FIG. 16, an end surface 72a4-
1 has a feature that it is more recessed than the end surfaces 62a2-1 and 623s-1 of the solid portions 62a2 and 62as of the original pressure bonding plate. Note that the effect of this feature is the same as the first one mentioned above.
The effect is the same as that in Figure 2, so it will be omitted.
第１５図、第１６図、第１７図は第１４図の変形例を示
し、第１５図はブリッジ状にたるんだ屈曲部７２ａ４に
代って屈曲部８２ａ４を波状にたるませたもので、第１
６図はブリッジ状にたるんだ屈曲部９２ａ４ の端面９
２ａ４−１を半径【の円弧状に形成したもので、第１７
図は第１６図のブリッジ状にたるんだ屈曲部９２ａａＫ
代って屈曲部１０２ａ４を円錐状に形成したものである
。15, 16, and 17 show modifications of FIG. 14, and FIG. 15 shows a bent portion 82a4 that is sagging in a wave shape instead of the bent portion 72a4 that is sagging in a bridge shape. 1
Figure 6 shows the end face 9 of the bent portion 92a4 which is slack in the shape of a bridge.
2a4-1 is formed into an arc shape with radius [17th
The figure shows a bent part 92aaK that is sagging in the shape of a bridge in Fig. 16.
Instead, the bent portion 102a4 is formed into a conical shape.
尚、屈曲部の端面な円弧状に形成することによって応力
の集中が避けられると〜・５効果がある。It should be noted that if the concentration of stress can be avoided by forming the end face of the bent part in an arc shape, there will be an effect of ~.5.
従って、これを第８図、第１０図〜第１３図の実施例に
も適用することができる。Therefore, this can also be applied to the embodiments shown in FIGS. 8 and 10 to 13.
第１８図はそのほかの変形例で、ソリッド部と屈曲部を
円弧で連結するものであり、応力の集中が避けられると
いう効果がある。FIG. 18 shows another modification in which the solid part and the bent part are connected by a circular arc, which has the effect of avoiding stress concentration.
以上が本発明に係る成形加工品の実施例の説明であるが
、本発明はこの実施例に限定されないことは勿論である
。The above is an explanation of the embodiment of the molded product according to the present invention, but it goes without saying that the present invention is not limited to this embodiment.
例えば、余分のたわみ量を形成する手段として、対向す
るソリッド部を最短距離プラスαで結ぶものであれば何
でも良い。For example, as a means for forming an extra deflection amount, any method may be used as long as opposing solid parts are connected by the shortest distance plus α.
本発明は上述の通り、屈曲部の巾方向の端部付近に余分
のたわみ量を形成した構成であるので、ヒンジ部に大き
な力が加えられた場合でも屈曲部の接合部端面には引張
力が作用せず、従って屈曲部の耐久性が向上するという
効果がある。As described above, the present invention has a configuration in which an extra amount of deflection is formed near the widthwise end of the bent part, so even if a large force is applied to the hinge part, a tensile force is applied to the end surface of the joint part of the bent part. This has the effect of improving the durability of the bent portion.
本発明は更に、屈曲部の応力集中を避ける構成な追加す
ることによって、より効果的に屈曲部の耐久性が向上で
きる。Furthermore, the present invention can more effectively improve the durability of the bent portion by adding a structure that avoids stress concentration at the bent portion.
第１図は複写機の斜視図、第２図は第１図の主要部の縦
断面図、第６図は第２図の動作後の状態を示す縦断面図
、第４図は従来例の屈曲部を有する成形加」ニ品（原稿
圧着板）の斜視図、第５図は：（Ｙ、 ４図の１３−
ｆ３１矢視方向の断面図、第６図は原稿圧着板の開放状
態におけるヒンジ部の断面図、第７図は捩り力が作用し
た時のヒンジ部の状態な示す模式図、第８図は本発明に
係る成形加工品の一実施例の斜視図、第９図は第８図の
Ｅ矢視方向の側面図、第１０図、第１１図は各々が第８
図の変形例を示す斜視図、第１２図は本発明に係る成形
加工品の第２の実施例の斜視図、第１３図は同じく第３
の実施例の斜視図、第１４図は同じく第４の実施例の斜
視図、第１５図〜第１７図は各々が第１４図の変形例を
示す斜視図、第１８図はそのほかの変形例を示す断面図
である。
２２ａ、５２ａ・・・ヒンジ部、２２ａ１，５２ａ１，
６２ａ１ｊ７２ａ１・・・屈曲部（中央部分） ％ ２
２ａ２＋２２ａｓ、５２ａ２ｔ５２ａｓ、６２ａ２，６
２ａ５，７２ａ２，７２ａｇ・−ソリッド部、２２ａａ
＊５２ａａ 、６２ａａ 、７２ａ４・・・屈曲部（
たるみ部分）、６２ａｓ ｔ６２ａｂ 、７２ａｓ 、
７２ａ６・・・ソリッド部（端部付近）、５２ａａ−１
，７２ａ４−１．９２ａ４−１ ・・・端面、ａ 、
ｂ ｅ”ｅ接合部。
出願人 キャノン株式会社
￥／図
第２図
箔４図
￥５図
２α
培６履
箔７図
因
図
東／ｚ［ｆｆｉ
Ｉｇ１３６Fig. 1 is a perspective view of the copying machine, Fig. 2 is a longitudinal sectional view of the main parts of Fig. 1, Fig. 6 is a longitudinal sectional view showing the state after operation of Fig. 2, and Fig. 4 is a conventional example. A perspective view of a molded product (original pressure bonding plate) having a bent portion, FIG. 5 is: (Y, 13- in FIG. 4)
6 is a sectional view of the hinge section when the document pressure plate is in the open state, FIG. 7 is a schematic diagram showing the state of the hinge section when torsional force is applied, and FIG. A perspective view of one embodiment of the molded product according to the invention, FIG. 9 is a side view in the direction of arrow E in FIG. 8, and FIGS.
FIG. 12 is a perspective view of a second embodiment of the molded product according to the present invention, and FIG. 13 is a perspective view of a third embodiment of the molded product according to the present invention.
FIG. 14 is a perspective view of the fourth embodiment, FIGS. 15 to 17 are perspective views each showing a modification of FIG. 14, and FIG. 18 is another modification. FIG. 22a, 52a...hinge portion, 22a1, 52a1,
62a1j72a1...Bending part (center part) % 2
2a2+22as, 52a2t52as, 62a2,6
2a5, 72a2, 72ag・-solid part, 22aa
*52aa, 62aa, 72a4...Bending part (
slack part), 62as t62ab, 72as,
72a6...Solid part (near end), 52aa-1
,72a4-1.92a4-1...end surface, a,
b e”e joint. Applicant Canon Co., Ltd. ¥/Figure 2 Figure 4 Figure ¥5 Figure 2α Pei 6 Raku 7 Figure Inzu Higashi/z[ffi Ig136
Claims (1)
て、該屈曲部の中方向の端部付近が該屈曲部のそのほか
の部分に対して余分のたわみ量を有している事を特徴と
する成形加工品。 （２１Ｍ１曲部の巾方向の端部旬近はブリッジ状にたる
んでいる事を特徴とする特許 第（１）項に記載の成形加工品。 （３）屈曲部の巾方向の端部付近は波状にたるんでいる
事を特徴とする前記特許請求の範囲第（１）項に記載の
成形加工品。 （４）屈曲部のｒｌＪ方向の端部付近は円錐状にたるん
でいる事を特徴とする前記特許請求の範囲第（１）項に
記載の成形加工品。 （５）屈曲部σ月Ｉノ方向の端面を円弧状に形成した事
を特徴とする前記特許請求の範囲第（２）項〜第（４》
項のいずれかに記載の成形加工品。 （６）屈曲部と本体の接合部を曲線で形成した事を特徴
とする前記特許請求の範囲第（５）項に記載の成形加工
品。 （ハ可撓性の屈曲部を有する成形加工品において、゛該
屈曲部の巾方向の端部付近が該屈曲部のそのほかの部分
に対して余分のたわみ量を有していると共に１該屈曲部
の巾方向の端面が該成形加工品の巾方向の端面よ９も内
側にへこんでいる事を特徴とする成形加工品。 （８）可撓性の屈曲部と一対のソリッド部から成るＵ形
のヒンジ手段を有する成形加工品において、該屈曲部の
巾方向の端部付近が該屈曲部のそのほかの部分に対して
余分のたわみ量を有していると共に、該屈曲部で屈曲さ
せた時に中央付近で該ソリッド部同志が当接する様にす
るために核ソリッド部の巾方向の端部付近に逃げを設け
た事を特徴とする成形加工品。 （９）可撓性の屈曲部と一対のソリッド部から成るＵ形
のヒンジ手段を有する成形加工品において、該屈曲部の
巾方向の端部付近が該屈曲部のそのほかの部分に対して
余分のたわみ量を有していると共に、該屈曲部で屈曲さ
せた時に中央付近で該ソリッド部同志が当接する様にす
るために該ソリッド部の中方向の端部付近に逃げを設け
、且つ該屈曲部の巾方向の端面が該成形加工品のｉＪ力
方向端面よりも内側にへこんでいる事を特徴とする成形
加工品。[Claims] (1) In a molded product having a T3J flexible bent part, the vicinity of the middle end of the bent part has an extra amount of deflection compared to other parts of the bent part. A molded product characterized by: (The molded product described in Patent No. (1), which is characterized in that the 21M1 bent portion is sagging in the width direction near the end in a bridge shape. (3) The widthwise end portion of the bent portion is sagging. The molded product according to claim (1), which is characterized by sagging in a wavy shape. (4) The shaped product is characterized by sagging in a conical shape near the end of the bent portion in the rlJ direction. (5) The molded product according to claim (1). (5) Claim (2) characterized in that the end face in the direction of the bent portion is formed into an arc shape. Item ~ No. (4》)
The molded product described in any of the above. (6) The molded product according to claim (5), wherein the joint between the bent portion and the main body is formed in a curved line. (C) In a molded product having a flexible bent part, ``the vicinity of the end in the width direction of the bent part has an extra amount of deflection compared to other parts of the bent part, and A molded product characterized in that the end face in the width direction of the part is recessed inward by 9 degrees from the end face in the width direction of the molded product. (8) U consisting of a flexible bent part and a pair of solid parts. In a molded product having a shaped hinge means, the vicinity of the widthwise end of the bent portion has an extra amount of deflection relative to the other portion of the bent portion, and the bent portion is bent at the bent portion. A molded product characterized in that a relief is provided near the widthwise end of the core solid part so that the solid parts come into contact with each other near the center. (9) A flexible bent part and In a molded product having a U-shaped hinge means consisting of a pair of solid parts, the vicinity of the widthwise end of the bent part has an extra amount of deflection relative to the other part of the bent part, and In order to allow the solid parts to contact each other near the center when bent at the bending part, a relief is provided near the end in the middle direction of the solid part, and the end surface in the width direction of the bending part A molded product characterized by being recessed inward from the end face in the iJ force direction of the processed product.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58222632A JPS60114856A (en) | 1983-11-25 | 1983-11-25 | Molded workpiece having flexible bent part |
| US06/671,460 US4636065A (en) | 1983-11-25 | 1984-11-14 | Molded article with flexible hinge |
| DE19843442785 DE3442785A1 (en) | 1983-11-25 | 1984-11-23 | MOLDED PART WITH FLEXIBLE HINGE |
| GB08429659A GB2151695B (en) | 1983-11-25 | 1984-11-23 | Moulded article with flexible hinge |
| FR8417881A FR2555644B1 (en) | 1983-11-25 | 1984-11-23 | FLEXIBLE HINGE MOLDED ARTICLE, ESPECIALLY USED AS AN ORIGINAL COVER PLATE FOR A COPIER |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58222632A JPS60114856A (en) | 1983-11-25 | 1983-11-25 | Molded workpiece having flexible bent part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60114856A true JPS60114856A (en) | 1985-06-21 |
| JPH0211127B2 JPH0211127B2 (en) | 1990-03-13 |
Family
ID=16785490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58222632A Granted JPS60114856A (en) | 1983-11-25 | 1983-11-25 | Molded workpiece having flexible bent part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60114856A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000008682A (en) * | 1998-06-23 | 2000-01-11 | Combi Corp | Hinge for opening-closing lid, lid and container or the like using the same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6209750B2 (en) * | 2012-09-03 | 2017-10-11 | 畑林工業株式会社 | Folding screen |
-
1983
- 1983-11-25 JP JP58222632A patent/JPS60114856A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000008682A (en) * | 1998-06-23 | 2000-01-11 | Combi Corp | Hinge for opening-closing lid, lid and container or the like using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0211127B2 (en) | 1990-03-13 |
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