JP2539700B2 - Suture type bellows forming sheet material - Google Patents

Suture type bellows forming sheet material

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Publication number
JP2539700B2
JP2539700B2 JP2215394A JP21539490A JP2539700B2 JP 2539700 B2 JP2539700 B2 JP 2539700B2 JP 2215394 A JP2215394 A JP 2215394A JP 21539490 A JP21539490 A JP 21539490A JP 2539700 B2 JP2539700 B2 JP 2539700B2
Authority
JP
Japan
Prior art keywords
concave
bellows
sheet material
type bellows
sewn
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
Application number
JP2215394A
Other languages
Japanese (ja)
Other versions
JPH0498195A (en
Inventor
剛 根本
てる子 根本
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Individual
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Individual
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Priority to JP2215394A priority Critical patent/JP2539700B2/en
Publication of JPH0498195A publication Critical patent/JPH0498195A/en
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Publication of JP2539700B2 publication Critical patent/JP2539700B2/en
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Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、機械等の伸縮変位部分または屈曲変位部
分を塵や光線または湿気等の外乱因子から守るために、
それらを遮蔽する伸縮自在式のカバー、または収納体、
とりわけ、ジャバラに関し、より詳言すれば、そのよう
な縫合型ジャバラを形成するのに好適するシート材に関
する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is intended to protect a stretchable displacement portion or a bending displacement portion of a machine or the like from a disturbance factor such as dust, light rays or moisture.
A retractable cover that shields them, or a storage body,
More particularly, it relates to a bellows, and more specifically, to a sheet material suitable for forming such a sewn bellows.

この発明によるシート材で形成されるジャバラは、折
り曲げ処理の手段が、連続するシートの屈曲によって形
成される折り型ジャバラでなく、互いに分離したシート
片の縫合によって形成される縫合型ジャバラに属し、更
に、ジャバラの断面形状が被覆対象物の全周の一部、一
般的には底面を除いた凹字形被覆形状の縫合型ジャバラ
に属する。
Bellows formed by the sheet material according to the present invention, the folding means belongs to a sewn bellows formed by stitching sheet pieces separated from each other, not a foldable bellows formed by bending a continuous sheet, Further, the cross-sectional shape of the bellows belongs to a part of the entire circumference of the object to be coated, generally a sewn-type bellows having a concave covering shape excluding the bottom surface.

〔従来の技術〕[Conventional technology]

従来、まず、折り型ジャバラは1枚続きのシートをジ
グザグ状に折り返して作られる。従って、折り型ジャバ
ラは、縫合型ジャバラに比して、製作の手数と時間がか
からず、容易かつ廉価であるという長所を有する。しか
しながら、折り型ジャバラは、次の短所、すなわち、ジ
ャバラ製作完了時における初期状態つまり無負荷状態に
おいて、1枚続きのシート素材にジグザグ状の折り返し
加工を施した名残りとして、ジグザグ状の折り返し間の
可変角度に中程度の初期拡開が認められ、従って、初期
状態において場所をとるばかりでなく、引張圧力の負荷
に対しては比較的忠実に追随変位するものの、圧縮圧力
の負荷に対しては抵抗が生じて圧縮方向から逸脱した方
向に変位する欠点を有するため、圧縮変位の範囲が限定
される。
Conventionally, a folding type bellows is first made by folding back a continuous sheet in a zigzag shape. Therefore, the folding type bellows has advantages that it is easier and cheaper to manufacture than the sewn type bellows, because it takes less labor and time for production. However, the folding type bellows has the following disadvantages, that is, in the initial state when the bellows is completed, that is, in an unloaded state, as a remnant obtained by performing a zigzag-like folding process on a continuous sheet material, a zigzag-shaped folding is performed. A moderate initial expansion is observed at the variable angle, so it not only takes up space in the initial state, but it follows the displacement relatively faithfully to the tensile pressure load, but does not follow the compression pressure load. The range of compression displacement is limited due to the drawback that resistance is generated and displacement occurs in a direction deviating from the compression direction.

これに対して、縫合型ジャバラは、互いに分離したシ
ート片を重ね合わせ、各隣接シート間の外縁及び内縁に
沿って相互に縫合して一体化させる構造であるため、無
負荷の初期状態において、隣接シート間が密接する最圧
縮形状を原点とするから、場所をとらない長所を有し、
その点において前記折り型ジャバラの弊害が克服され
る。
On the other hand, the sewn-type bellows has a structure in which sheet pieces separated from each other are stacked and sewn together along the outer edge and the inner edge between the adjacent sheets to be integrated, so that in the initial state of no load, Since the origin is the most compressed shape in which adjacent sheets are in close contact with each other, it has the advantage of not taking up space.
In that respect, the adverse effect of the folding bellows is overcome.

しかしながら、縫合型ジャバラは、折り型ジャバラに
比して、製作の手数と時間がかかり、コスト高となる欠
点があった。そして、その欠点は、従来における縫合型
ジャバラの一般的な製作工程に起因する。
However, the sewn-type bellows has the drawback of requiring more manufacturing time and time and higher cost than the folding-type bellows. And the defect is due to the general manufacturing process of the conventional suture type bellows.

つまり、従来における縫合型ジャバラの製作工程は、
第2図で示すように、まず、布地にネオプレンゴムをコ
ーティングしたシート原反1を凹字形に打ち抜いて(第
2図b参照)多数の凹字形シート2,2a,2b,2c…を作成
し、次に、それらの凹字形シート2,2a及び2b,2cをそれ
ぞれ2枚づつ互いに重ね合わせ、その各内縁部4を縫い
合わせ(内縫い)(第2図c参照)、更に、凹字形シー
ト2a,2bの外縁部5を縫い合わせ(外縫い)(第2図d
参照)、そのように内縫いと外縫いを交互に施して、縫
合型ジャバラを作成していた。また、凹字形シートを互
いに重ね合わせる時に、あらかじめ縫合線に沿って、糊
をつけ、仮止めして前記縫合作業をする場合もあった。
このように、従来における縫合型ジャバラの製作工程
は、手数と時間がかかるものであった。
That is, the manufacturing process of the conventional suture type bellows is
As shown in Fig. 2, first, a sheet material 1 coated with neoprene rubber is punched into a concave shape (see Fig. 2b) to prepare a large number of concave shaped sheets 2, 2a, 2b, 2c. Then, the concave sheets 2, 2a and 2b, 2c are superposed on each other two by two, and each inner edge portion 4 is sewn (internal sewing) (see FIG. 2c), and further the concave sheet 2a , 2b are sewn together at the outer edge portion 5 (outer sewing) (Fig. 2d)
(See), the inner sewing and the outer sewing are alternately performed in this manner to create the sewn bellows. Further, when the concave-shaped sheets are overlapped with each other, glue may be applied along the suture line in advance and the suture work may be performed by temporarily fixing.
As described above, the conventional manufacturing process of the sewn-type bellows requires time and labor.

〔発明が解決しようとする課題〕[Problems to be Solved by the Invention]

前記したように、縫合型ジャバラは、折り型ジャバラ
に比して、圧縮に有利で場所をとらない利点を有するも
のの、次の欠点、すなわち、縫合型ジャバラの凹字形シ
ートがすべて一枚づつ分離していること、それ故に、各
凹字形シートを正しく重ね合わせる作業に時間と手数が
かかること、さらに、縫合時にずれが生ずると、完成品
によじれが生じてしまうこと、などによって、縫合型ジ
ャバラの製作は極めて熟練を要する作業であった。ま
た、ずれを防止するために糊を用いて仮止めをする場合
には、更に、手数が増えた。
As described above, the sewn-type bellows has an advantage over the folded-type bellows in that it is advantageous in terms of compression and does not take up a lot of space, but the following drawback is that all the concave sheets of the sewn-type bellows are separated one by one. Therefore, it takes time and labor to correctly stack the concave-shaped sheets, and further, if misalignment occurs during stitching, the finished product will be kinked. Was a highly skilled task. In addition, the number of steps is further increased when temporary fixing is performed using glue in order to prevent displacement.

この発明の目的は、圧縮に有利で場所をとらない利点
を有する縫合型ジャバラのその長所を温存しつつ、その
短所、すなわち、製作工程における手数と時間を少なく
して、熟練を要さずともよじれやずれのない精確な完成
品を容易かつ低廉に作成し得る縫合型ジャバラを形成す
るための特殊形状のシート材を提供することである。
The object of the present invention is to save the advantages of the suture bellows, which has the advantage of being compact and space-saving, while at the same time reducing its disadvantages, that is, the number of steps and time in the manufacturing process, without requiring skill. It is an object of the present invention to provide a sheet material having a special shape for forming a sewn-type bellows which can easily and inexpensively produce an accurate finished product without kinking or displacement.

〔課題を解決するための手段〕[Means for solving the problem]

この発明による縫合型ジャバラ形成用シート材は、上
記の課題を解決するために、同形同大の多数の凹字形シ
ートが、交互に正位置と逆位置の状態で連結、すなわ
ち、一方の隣接境界では凹字形シートの底辺と底辺とが
ミシン線で連結し、他方の隣接境界では凹字形シートの
一対の突端と突端とが各内端部においてそれぞれ切り残
された状態で連結することによって、一枚続きの帯状を
形成するものである。
In order to solve the above-mentioned problems, the sutured bellows forming sheet material according to the present invention has a large number of concave-shaped sheets having the same shape and the same size, which are alternately connected in the normal position and the reverse position, that is, one of them is adjacent. At the boundary, the bottom side and the bottom side of the concave sheet are connected by a sewing line, and at the other adjacent boundary, the pair of projecting ends and the projecting ends of the concave sheet are connected in a state where they are left uncut at each inner end. It forms a continuous strip.

〔作用〕[Action]

本発明による縫合型ジャバラ形成用シート材は、折り
型ジャバラの利点を導入して、各凹字形シートが離れば
なれでなく、いずれも連結して一枚続きの帯状を形成し
ているので、各隣接境界を順次折り返し重ね合わせるこ
とによって、縫合型ジャバラの基礎形状を簡単に形成し
得る。
The sewn-type bellows forming sheet material according to the present invention introduces the advantage of the folding type bellows, and the concave-shaped sheets must be separated from each other. The basic shape of the sewn-type bellows can be easily formed by sequentially folding and overlapping the boundaries.

折り返して重ね合わせる場合に、互いに隣接する凹字
形シートの連結位置が限定された3ヶ所のみ、すなわ
ち、凹字形の底辺間の連結部と、一対の突端間の一部切
り残し連結部の合計3か所であるが、この3点で相互の
位置が正しく決められ、よじれやずれが生じない。
When folded back and overlapped with each other, only three positions where the connecting positions of the concave-shaped sheets adjacent to each other are limited, that is, the total of the connecting parts between the bottoms of the concave-shaped parts and the partially cut-off connecting parts between the pair of protruding ends are combined. It is a place, but these three points correctly position each other, and no kinks or shifts occur.

〔実施例〕〔Example〕

第1図は、本発明による縫合型ジャバラ形成用シート
材を使ってジャバラを作成する工程を順次示す説明図で
あって、ジャバラ形成用シート材(第1図b)は、例え
ば、布地にネオプレンゴムをコーティングした帯状のシ
ート原反1(第1図a)を打抜き加工して作られる。
FIG. 1 is an explanatory view showing in sequence the steps of producing a bellows using the sutured bellows forming sheet material according to the present invention. The bellows forming sheet material (FIG. 1b) is, for example, neoprene on cloth. It is made by punching a rubber-coated strip-shaped sheet material 1 (Fig. 1a).

本発明によるジャバラ形成用シート材は、第1図bで
示すように、同形同大の多数の凹字形シート3,3a,3b,3c
…は、互いに隣接する双方の境界において、いずれも、
部分的に切断され、部分的に連結している。すなわち、
一方の隣接境界では凹字形シートの底辺5aがミシン線に
より部分的に切断され部分的に連結し、他方の隣接境界
では凹字形シートの一対の突端4a,4aが各内端部4b,4bに
おいてそれぞれ切り残されて連結し、このようにして、
前記多数の凹字形シート3,3a,3b,3c…が一枚続きの帯状
を形成している。
As shown in FIG. 1b, the bellows forming sheet material according to the present invention has a large number of concave sheets 3,3a, 3b, 3c of the same shape and size.
Is the boundary on both sides of each other,
Partially cut and partially connected. That is,
At one adjacent boundary, the bottom side 5a of the concave sheet is partially cut by the sewing line and partially connected, and at the other adjacent boundary, a pair of protruding ends 4a, 4a of the concave sheet are formed at each inner end portion 4b, 4b. Each is left uncut and connected, like this,
The plurality of concave-shaped sheets 3, 3a, 3b, 3c ... Form a continuous strip.

次に、内縫い工程では、第1図cで示すように、前記
多数の凹字形シート3,3a,3b,3c…の各一対の突端4a,4a
の各内端部に設けた切り残し連結部4b,4bをそれぞれ互
いに折り返して重ね合わせる。このとき、各シートは、
切り残し連結部4b,4bにより2か所で位置決めされるの
で、ずれることがない。このように折り返した後、その
各内縁部4に沿って内縫いして、内縁縫合部4cが形成さ
れる。
Next, in the inner stitching step, as shown in FIG. 1C, the pair of protruding ends 4a, 4a of the plurality of concave-shaped sheets 3, 3a, 3b, 3c ...
The uncut connecting portions 4b, 4b provided at the inner end portions of are folded back and overlapped with each other. At this time, each sheet
Since the uncut portions 4b, 4b are positioned at two places, they will not be displaced. After being folded back in this manner, inner stitching is performed along each inner edge portion 4 to form the inner edge stitched portion 4c.

内縫い工程を終えた凹字形シート3,3a及び3b,3cは第
1図dで示すように、外縫い工程へと進み、凹字形シー
ト3a,3bの底辺すなわち折返し連結部5aを折り返して重
ね合わせる。このとき、各シートは、内縁縫合部4cで固
定された切り残し連結部4b,4bと折返し連結部5aの3か
所で位置決めされるので正しく重ね合わせることが可能
である。そして、その外縁部5に沿って外縫いして外縁
縫合部5bが形成される。
As shown in FIG. 1d, the concave sheets 3, 3a and 3b, 3c that have completed the inner stitching process proceed to the outer stitching process, and the bottoms of the concave sheets 3a, 3b, that is, the folded connection portions 5a are folded back and overlapped. To match. At this time, the respective sheets are positioned at three positions, namely, the uncut portions 4b, 4b fixed by the inner edge stitching portion 4c and the folded-back connecting portion 5a, so that they can be properly superposed. Then, the outer edge stitching portion 5b is formed by performing outer stitching along the outer edge portion 5.

このようにして、ジャバラ形成用シート材に順次内縫
いと外縫いを交互に施して、縫合型ジャバラが作成され
る。
In this manner, the bellows forming sheet material is sequentially subjected to inner stitching and outer stitching alternately to form a sewn-type bellows.

この発明は、上記の実施例に限定されるものでなく、
請求項に記載される範囲におけるあらゆる改変に及ぶも
のである。
The present invention is not limited to the above embodiment,
It extends to all modifications within the scope of the claims.

〔発明の効果〕〔The invention's effect〕

この発明による縫合型ジャバラ形成用シート材は、各
凹字形シートが離ればなれでなく、いずれも一枚続きに
連結しているので、各境界線で順次折り返し、重ね合わ
せて縫合することによって、あたかも折り型ジャバラの
ように、縫合型ジャバラの基礎形状を形成することがで
きる。また縫合加工の際に、各凹字形シートの底辺間の
連結部と、各凹字形シートの一対の突端間の一部切り残
し連結部の合計3か所で、隣接する凹字形シート相互の
位置決めが確定し、加工作業の精度が向上するから、従
来の縫合型ジャバラと比較して、重ね合わせに要する時
間と手数及び作業空間が大幅に減少され、かつ、よじれ
の少ない高精度の縫合型ジャバラを供給することが可能
となった。更に、それに伴なって作業能率が格段と向上
するばかりか、作業に熟練した職人を要さず、生産コス
トを著しく低廉化し得るようになった。
In the sewn-type bellows forming sheet material according to the present invention, the concave-shaped sheets must be separated from each other, and since all of them are connected one after another, they are folded back one after another at each boundary line and sewn together as if they were folded. Like the mold bellows, the basic shape of the suture bellows can be formed. Further, at the time of stitching, the positioning of the adjacent concave-shaped sheets with respect to each other is performed at a total of three places, that is, the connecting portions between the bottoms of the concave-shaped sheets and the partially cut-off connecting portions between the pair of projecting ends of the concave-shaped sheets. Since the accuracy of the sewing work is improved, the time and labor required for superposition and the work space are greatly reduced compared to the conventional suture type bellows, and the highly accurate suture type bellows with less kinking is provided. Can be supplied. In addition, not only the work efficiency is greatly improved, but also the skilled worker is not required for the work, and the production cost can be remarkably reduced.

更に、この発明は、互いに隣接する凹字形シートの境
界において、一方の隣接境界では凹字形シートの底辺と
底辺とがミシン線で連結し、他方の隣接境界では凹字形
シートの一対の突端と突端とが各内縁部においてそれぞ
れ切り残されて連結しているので、万が一、縫い合わせ
の糸がほつれた場合であっても、両者間に隙間があか
ず、従って、内部に細かいゴミが進入し難い。
Further, according to the present invention, in the boundary between the concave-shaped sheets adjacent to each other, the bottom side of the concave-shaped sheet is connected by a sewing line at one adjacent boundary, and the pair of projecting ends and the projecting point of the concave-shaped sheet at the other adjacent boundary. Since and are connected to each other by being left uncut at each inner edge portion, even if the thread for sewing is unraveled, there is no gap between the two, and therefore it is difficult for fine dust to enter the inside.

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

第1図は、この発明による縫合型ジャバラ形成用シート
材によるジャバラの製作工程を順次例示する説明図、 第2図は、従来における縫合型ジャバラの製作工程を順
次例示する説明図である。 1……シート原反、 2,2a,2b,2c……従来における凹字形シート、 3,3a,3b,3c……本発明による一部連結した凹字形シー
ト、 4……その内縁部、 4a,4a……一対の突端部、 4b,4b……切り残し連結部、 4c……内縁縫合部、 5……その外縁部、 5a……底辺、折返し連結部(ミシン線)、 5b……外縁縫合部。
FIG. 1 is an explanatory view sequentially illustrating a manufacturing process of a bellows using a suture type bellows forming sheet material according to the present invention, and FIG. 2 is an explanatory view sequentially illustrating a conventional manufacturing process of a suture type bellows. 1 ... Sheet original fabric, 2,2a, 2b, 2c ... Conventional concave sheet, 3,3a, 3b, 3c .... Concatenated concave sheet according to the present invention, 4 ... Inner edge portion, 4a , 4a ...... a pair of projections, 4b, 4b ...... uncut part connecting part, 4c ...... inner edge stitching part, 5 …… its outer edge part, 5a …… bottom, folded connection part (sewing line), 5b …… outer edge Sutured part.

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】同形同大の多数の凹字形シートが、交互に
正位置及び逆位置の状態で連結、すなわち、一方の隣接
境界では前記凹字形シートの底辺と底辺とが連結し、他
方の隣接境界では前記凹字形シートの一対の突端と突端
とが各内端部においてそれぞれ切り残された状態で連結
することによって、一枚続きの帯状を形成していること
を特徴とする縫合型ジャバラ形成用シート材。
1. A plurality of concave-shaped sheets having the same shape and the same size are alternately connected in a normal position and a reverse position, that is, at one adjacent boundary, the bottom side of the concave-shaped sheet is connected and the other side is connected. At the adjacent boundary of, the pair of projecting ends of the concave-shaped sheet and the projecting ends are connected to each other in a state where they are left uncut at each inner end, thereby forming a continuous strip shape. Sheet material for forming bellows.
【請求項2】前記一方の隣接境界がミシン線によって定
められている請求項1に記載のシート材。
2. The sheet material according to claim 1, wherein the one adjacent boundary is defined by a sewing line.
JP2215394A 1990-08-15 1990-08-15 Suture type bellows forming sheet material Expired - Lifetime JP2539700B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2215394A JP2539700B2 (en) 1990-08-15 1990-08-15 Suture type bellows forming sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2215394A JP2539700B2 (en) 1990-08-15 1990-08-15 Suture type bellows forming sheet material

Publications (2)

Publication Number Publication Date
JPH0498195A JPH0498195A (en) 1992-03-30
JP2539700B2 true JP2539700B2 (en) 1996-10-02

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JP (1) JP2539700B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3386877B2 (en) * 1994-01-07 2003-03-17 剛 根本 Stitched bellows hem dustproof device
JP3662639B2 (en) * 1995-08-10 2005-06-22 剛 根本 Bellows
JP6527322B2 (en) * 2014-11-11 2019-06-05 株式会社日立製作所 Cover member, method of manufacturing the cover member, and cover structure using the cover member

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62158640A (en) * 1985-11-29 1987-07-14 仲川 重俊 Manufacture of bellows-shaped container
JPS62158641A (en) * 1985-11-29 1987-07-14 仲川 重俊 Manufacture of bellows-shaped container

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JPH0498195A (en) 1992-03-30

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