JP3551978B2

JP3551978B2 - Upholstery frame of cloth curved in an arc

Info

Publication number: JP3551978B2
Application number: JP14155993A
Authority: JP
Inventors: 正則柴田
Original assignee: 株式会社バルダン
Priority date: 1993-05-20
Filing date: 1993-05-20
Publication date: 2004-08-11
Anticipated expiration: 2019-08-11
Also published as: JPH06330450A

Description

【０００１】
【産業上の利用分野】
本発明は帽子の周壁のような円弧状に湾曲している布に対して刺繍する場合において、その円弧状に湾曲している布の刺繍領域をぴんと張った状態に保持する為に用いられる円弧状に湾曲している布の布張枠に関する。
【０００２】
【従来の技術】
円弧状に湾曲している布の添え付けの為に上面が断面円弧状となっていると共に、該上面には円弧状に湾曲している布の刺繍領域を位置させる為の窓が備えられている基枠と、円弧状に湾曲している布を上記上面において基枠の軸線方向における上記窓の一方の側の縁部に押え付ける為の締付片と、他方の側の縁部に押え付ける為のもう一つの締付片と、上記両締付片における夫々の一方の端部を上記基枠に連結する為の止具と、他方の端部を上記基枠に連結する為のもう一つの止具とを有する（例えば特開平２−２５１６６０号公報参照）。このような円弧状に湾曲している布の布張枠では、基枠の上面に円弧状に湾曲している布を添え付け、両締付片で押え付けることにより、円弧状に湾曲している布を基枠により保持できて刺繍に供すことができる。
【０００３】
【発明が解決しようとする課題】
この従来の円弧状に湾曲している布の布張枠においては、上記円弧状に湾曲している布が薄布であるとそれを基枠に添え付けた状態で窓に対応する布部がだぶつき弛んだ状態となることがある。そうなった場合、円弧状に湾曲している布をぴんと張らせる為に締付片の外方にある円弧状に湾曲している布を引かねばならぬ。しかし上記締付片による押え付けが強いと円弧状に湾曲している布が動きづらく、作業がやりにくい問題点があった。尚上記締付片による押え付けを弱くすれば上記円弧状に湾曲している布を引く作業は容易となるが、そのようにすると、窓の円弧状に湾曲している布に刺繍をする場合に円弧状に湾曲している布が窓の側に引かれて再び弛んでしまう問題点がある。
【０００４】
上記問題点を解決するために、上記締付片の内側に滑り止め用の当部材を添え付けることが考えられる。しかし、上記締付片は曲付け屈曲を自在とするものであるから、当部材が肌割れして横ずれする問題点が生じる。さらに「横ずれする問題点」を解決するために横ずれの防止策を講じると基部材の屈曲性を損じる問題点が発生するという悩みが生じる。
【０００５】
本願発明は上記従来技術の問題点を解決する為になされたもので、締付片に対して「横ずれ」を解決するために横ずれ防止策を講じても基部材の屈曲性を損じる恐れのない手段を提供し、しかも、円弧状に湾曲している布の刺繍領域が上記の窓の位置においてだぶついている場合には、布の一部を締付片の外方向へずらし易くして、窓上に刺繍領域を張る作業を容易に行なうことができ、しかも上記とは反対に円弧状に湾曲している布が窓の側へずれることに対する抵抗力を極めて大きくできて、窓上に刺繍領域がぴんと張られた状態を堅固に維持できるようにした円弧状に湾曲している布の布張枠を提供することを目的としている。
【０００６】
【課題を解決するための手段】
本願発明における円弧状に湾曲している布の布張枠は、円弧状に湾曲している布の添え付けの為に上面が断面円弧状となっていると共に、該上面には円弧状に湾曲している布の刺繍領域を位置させる為の窓が備えられている基枠と、円弧状に湾曲している布を上記上面において基枠の軸線方向における上記窓の一方の側の円弧状に形成された縁部に添付けできるように弾力的な曲付けを可能とする帯状の薄板製の締付片と、他方の側の円弧状に形成された縁部に添付けできるように弾力的な曲付けを可能とする帯状の薄板製のもう一つの締付片と、上記両締付片における夫々の一方の端部を上記基枠に連結する為の止具と、他方の端部を上記基枠に連結する為のもう一つの止具とを有する円弧状に湾曲している布の布張枠において、上記少なくとも一方の帯状の締付片における基部材の両側には、当部材のずれを防止する為に複数の断片状の囲み部材を列設させ、かつそれらの列設させた囲み部材の夫々の相互間には、基部材の屈曲性を損なわぬように夫々欠如部を介在させ、さらに締付片における上記両側の囲み部材の間には、基部材の屈曲性を損なわぬように上記上面と対向する側が軟質材製の当部材を備えさせると共に、該当部材は上記上面との対向面に複数の凸部を備えており、しかもそれらの凸部は、その先端部に対して上記窓とは反対の側に向けて加わる力に対してはその方向になびき、窓の側に向けて加わる力に対しては突っ張るよう、その突出方向を上記窓とは反対の側に傾斜させたものである。
【０００７】
【作用】
基枠の上面に円弧状に湾曲している布を添え付け、締付片で押え付けることにより円弧状に湾曲している布は基枠に保持された状態となる。締付片の外側の場所において円弧状に湾曲している布を窓の外方向へ向けて引くと、その引き力は締付片における当部材の凸部には横向きの力として加わる。従って凸部は上記引き力の方向になびき、上記引き力に対する抵抗力は小さい。従って布は上記の方向に軽い引き力でずらすことができる。一方、上記円弧状に湾曲している布が窓の箇所においてその窓の側に向けて引かれると、その引き力は上記凸部には正面向きの力として加わる。従って凸部はその引き力に対して突っ張る状態となり、その引き力の方向へ向けての円弧状に湾曲している布のずれに対して大きい抵抗力を示す。
【０００８】
【実施例】
以下本願の実施例を示す図面について説明する。図１、２において、符号１〜２４は円弧状に湾曲している布の布張枠及び刺繍ミシンにおける通常知られた構造を示すもので、１は円弧状に湾曲している布の布張枠として例示する帽子枠、２はその基枠、３は刺繍ミシンに備えられている駆動部への連結部、４は基枠２の上面を示し、図示の如き断面円弧状の布張面となっている。５は刺繍領域存置用の窓、６は上記上面４において基枠２の軸線方向における前記窓５の一方の側の縁部、７は他方の側の縁部、図２に示される８はそれらの縁部に備えられた滑止部材（例えばウレタンゴムの薄板）、図１の９，１０は押え枠の連結の為に基枠２の左右の側部に備えた連結片で、夫々取付ブロック１１で基枠２に取付けてある。次に１４は上記基枠に対して円弧状に湾曲している布を押え付ける為の押え枠を示し、１５，１６は夫々円弧状に湾曲している布を上記縁部６，７に押え付ける為の締付片、１７は両締付片１５，１６における一方の端部を上記基枠２に連結する為の止具で、両締付片１５，１６における一方の端部を上記連結片９に連結する為の折り畳み可能な締具を例示する。１８は両締付片１５，１６における他方の端部を上記基枠２に連結する為の止具で、両締付片１５，１６における他方の端部を上記連結片１０に着脱自在に連結する為の掛具を例示する。尚図２の２２は刺繍ミシンにおけるベッド、２３は針、２４は布押えを夫々示す。
【０００９】
次に上記締付片１５について詳細に説明する。２６は基部材で、上面４の形状に倣った湾曲変形が自在の屈曲性を有しており、例えばステンレスの薄板でもって帯状に構成してある。２７は図１、３のように基部材２６における基枠の上面４に対向する側の面に備えさせる当部材２８の横ずれを防止する為にその当部材２８を囲むように基部材２６の両縁部に対して図示のような状態に設けた囲み部材で、基部材２６の両縁部を夫々図示のように曲げ起こして突出させた状態に形成してある。又該囲み部材は基部材２６の屈曲性を損なわぬよう図示の如く夫々の相互間に欠如部２７ａを介在させ断片状に形成してある。２８は締付片１５において上記上面４と対向する側の部分を構成する当部材で、軟質材例えば連続気泡のウレタン発泡ゴムでもって形成されている。このように当部材を軟質材の屈曲性を損なわぬような材料で形成しておくと、図１のように平坦な形状の締付片１５を上記の円弧状の窓５の上に被せ付け、上記平坦な形状の締付片１５を、弾力的に円弧状に曲げながら円弧状の刺繍領域３３ｂの上に馴染ませることができる。
【００１０】
２９は当部材２８における上記上面４との対向面を示し、複数の凸部３０を備えている。各凸部３０は、その先端部３０ｃに対して上記窓５とは反対の側に向けて加わる力に対してはその方向になびき、窓５の側に向けて加わる力に対しては突っ張るよう、図３に示す如く、その突出方向（凸部３０における元部の中心から凸部の先端部３０ｃに向かう線３０ａの方向）を上記窓５の側とは反対の側に傾斜させてある。上記凸部３０は基枠２の周方向に長い筋状のものを例示するが、多数の疣条のものであっても良い。上記のような当部材２８は、後述のように凸部３０に対して正面向きに加わる力による押し縮めに対して充分な抵抗力を発揮するよう例えばスプリング式硬さ試験において７０度程度の硬さのもの（６０度から８０度のものでも良い）が用いられる。次に他方の締付片１６は、上記締付片１５と同様の構成の基部材と、上記上面４との対向面が平坦となっている軟質材製の当部材とを備えた構造のものを用いてあるが、上記締付片１５と同様の構造のものを用いても良い。
【００１１】
上記構成の円弧状に湾曲している布の布張枠１の使用法は周知の通りであって、基枠２の布張面４に被刺繍の円弧状に湾曲している布３３例えば帽子３２の前面部を、その刺繍領域が窓５に位置するよう添え付ける。次に押え枠１４をその前面部３３の上に被せ、止具１８を連結片１０に掛け、他方の止具１７を折り畳むと、締付片１５，１６は上記前面部３３を夫々縁部６，７に押え付け、前面部３３は基枠２に保持された状態となる。該保持状態において、窓５において刺繍領域の円弧状に湾曲している布がぴんと張っていない状態の場合には、それを張らせる作業を以下のようにして行う。図３に示す如く窓５の外において前面部３３の上端３３ａを矢印３４方向に引く。その引き力は凸部３０の先端部３０ｃに対して矢印３５で示す如く横向きに加わる。この為、凸部３０の先端部３０ｃは符号３０ｂで示すように窓５とは反対の側になびき、上記矢印３４方向の引き力に対しては小さい抵抗力を示すのみである。従って上記前面部３３の円弧状に湾曲している布は比較的小さい力でもって矢印３４方向に移動させることができ、上記張り作業を容易に行うことができる。
【００１２】
上記のようにして円弧状に湾曲している布の装着を終えた円弧状に湾曲している布の布張枠１は連結部４を利用して周知の如く刺繍ミシンにおける駆動部に連結され、図２の如き状態で刺繍領域に対する刺繍が行われる。この場合、針２３の刺し通しその他によって上記前面部３３の円弧状に湾曲している布が図４に矢印３６で示す如く窓５の側に引かれても、その引き力は凸部３０の先端部３０ｃに対して正面向きに加わる（矢印３７で示す如く凸部３０を押し縮めようとする方向に加わる）。この為、凸部３０は上記引き力に対して突っ張る状態となり、円弧状に湾曲している布が矢印３６方向にずれようとすることに対して大きな抵抗力を示す。従って上記のような力が加わっても円弧状に湾曲している布のずれを防止し、窓５における前面部３３の張り状態を維持できて、刺繍領域に対する適正な刺繍を可能にできる。
【００１３】
【発明の効果】
以上のように本願発明にあっては、円弧状に湾曲している布３３に刺繍したい場合、円弧状に湾曲している布３３を基枠２の上面１４に添え付け、締付片１５で押え付けることにより、基枠２により円弧状に湾曲している布３３を保持できて刺繍に供すことのできる効果がある。
【００１４】
さらに締付片１５における上記上面４と対向する側の面に複数の凸部を備えた軟質材製の当部材２８を備えさせたから、円弧状に湾曲している布３３を基枠２の上面１４に添え付け、締付片１５で押え付けた状態においては布３３に対して軟質材製の当部材２８が馴染みよく当接する効果がある。
【００１５】
さらに本願発明にあっては、締付片１５における基部材に上記当部材２８を備えさせたものであっても、上記当部材２８は締付片１５における上記基部材２６の両側の囲み部材２７の間に備えさせるものであるから、横方向に向けて大きな力が加えられても横ずれする恐れのない効果がある。
【００１６】
さらに本願発明にあっては、締付片１５における基部材２６の両側における基枠上面４と対向する側に上記当部材２８の横ずれ防止用の囲み部材２７を配設したものであっても、それらの複数の断片状の囲み部材２７の夫々の相互間には、基部材の屈曲性を損なわぬように夫々欠如部２７ａを介在させ、しかも当部材２８は軟質材で形成した構成であるから、円弧状の窓５の上に被せ付けた円弧状の刺繍領域３３ｂの上に、平坦な形状であった締付片１５を、弾力的に円弧状に曲げながら円弧状の刺繍領域３３ｂの上に馴染ませることのできる画期的効果がある。
【００１７】
しかも上記保持状態において窓５の上の円弧状に湾曲している布３３が弛んでいるときにはそれを窓５にぴんと張る作業が必要であるが、その場合、締付片１５の外側において円弧状に湾曲している布３３を基枠上面に沿って窓５の外方へ向けて図３の矢印３４の如く引くと、その引き力は締付片１５における当部材２８の凸部３０には横向きに加わる為、軟質材で、しかも上記窓５とは反対の側に向けて力が加わるのに対してはその方向になびくように構成してある為、凸部３０は容易に外方へなびき、従って円弧状に湾曲している布３３の上記外方への引きに対する抵抗力は小さく、容易に円弧状に湾曲している布３３を上記外方向にずらすことができて円弧状に湾曲している布の張り作業を容易に行ない得る利点がある。
【００１８】
その上上記のように円弧状に湾曲している布３３をずらし易くしたものでも、円弧状に湾曲している布３３への刺繍の場合には、円弧状に湾曲している布３３に図４の矢印３６の如く窓５の側へ向けて引く力が加わっても、凸部３０は、窓５の側に向けて力が加わるのに対しては突っ張るよう、その突出方向を上記窓５とは反対の側に傾斜させてあるから、その引き力は、上記凸部３０に対しては正面から突張らせるように加わる為、凸部３０は上記の引き力に対して突っ張る状態となり、従って円弧状に湾曲している布３３の上記窓の方向へのずれに対する抵抗力は極めて大きくなり、円弧状に湾曲している布が窓５にぴんと張られた状態を堅固に維持できて、崩れのない適正な刺繍を可能にできる利点がある。
【図面の簡単な説明】
【図１】円弧状に湾曲している布の布張枠の斜視図。
【図２】使用状態を示す縦断面部分図。
【図３】円弧状に湾曲している布を窓の外方へ引いた場合の状態を示す断面図。
【図４】円弧状に湾曲している布が窓の側へ引かれた場合の状態を示す断面図。
【符号の説明】
２基枠
５窓
１５，１６締付片
２８当て部材
３０凸部[0001]
[Industrial applications]
According to the present invention, when embroidering on a cloth curved in an arc shape such as a peripheral wall of a hat, a circle used for holding an embroidery area of the cloth curved in an arc shape in a taut state. The present invention relates to a cloth upholstery frame that is curved in an arc shape.
[0002]
[Prior art]
The upper surface has an arc-shaped cross section for attaching the cloth curved in an arc shape, and the upper surface is provided with a window for positioning an embroidery area of the cloth curved in an arc shape. A base frame, a clamping piece for pressing an arc-shaped curved cloth on one side edge of the window in the axial direction of the base frame on the upper surface, and a clamp on the other side edge. Another fastening piece for attaching, a stopper for connecting one end of each of the fastening pieces to the base frame, and another stop for connecting the other end to the base frame. It has one stopper (for example, see Japanese Patent Application Laid-Open No. 2-251660). In the cloth-clad frame of the cloth curved in the arc shape, the cloth curved in the arc shape is attached to the upper surface of the base frame, and the cloth is curved in the arc shape by pressing with the both fastening pieces. Can be held by the base frame and used for embroidery.
[0003]
[Problems to be solved by the invention]
In this conventional cloth upholstery frame of a cloth curved in an arc shape, if the cloth curved in an arc shape is a thin cloth, the cloth portion corresponding to the window is attached with the cloth attached to the base frame. May be loose and loose. If this happens, the arc-curved cloth outside the fastening piece must be pulled in order to tension the arc-curved cloth. However, if the pressing by the fastening piece is strong, the cloth curved in an arc shape is difficult to move, and there is a problem that the work is difficult to perform. The work of pulling the cloth curved in the arc shape can be easily performed by weakening the pressing by the tightening pieces.However, in such a case, the embroidery is performed on the cloth curved in the arc shape of the window. However, there is a problem in that the cloth curved in an arc shape is pulled toward the window and becomes loose again.
[0004]
In order to solve the above problem, it is conceivable to attach a non-slip member to the inside of the fastening piece. However, since the above-mentioned fastening piece is made to be able to bend and bend freely, there arises a problem that the member is cracked and laterally shifted. Further, if measures to prevent lateral displacement are taken to solve the "problem of lateral displacement", there arises a problem that a problem of impairing the flexibility of the base member occurs.
[0005]
The present invention has been made in order to solve the above-mentioned problems of the prior art, and there is no danger of deteriorating the flexibility of the base member even if a countermeasure to prevent a lateral slip is taken to solve the "lateral slip" with respect to the fastening piece. In the case where the embroidery area of the cloth curved in an arc shape is loose at the position of the above-mentioned window, a part of the cloth can be easily shifted outwardly of the fastening piece to provide a window. The work of extending the embroidery area on the window can be easily performed, and in contrast to the above, the resistance of the cloth curved in an arc shape to the side of the window can be extremely increased, and the embroidery area can be formed on the window. It is an object of the present invention to provide an upholstery frame made of a cloth that is curved in an arc shape so that a tight state can be firmly maintained.
[0006]
[Means for Solving the Problems]
The cloth upholstery frame of the cloth which is curved in an arc shape in the present invention has an upper surface having an arc-shaped cross section for attaching the cloth which is curved in an arc shape, and the upper surface is curved in an arc shape. A base frame provided with a window for positioning an embroidery area of the cloth, and a cloth curved in an arc shape on the upper surface in an arc shape on one side of the window in the axial direction of the base frame. A strip-shaped thin-plate fastening piece that enables elastic bending so that it can be attached to the formed edge, and an elastic piece that can be attached to the arc-shaped edge on the other side. Another fastening piece made of a strip-shaped thin plate that enables a sharp bending, a stopper for connecting one end of each of the fastening pieces to the base frame, and the other end An arcuately curved cloth upholstery frame having another stopper for coupling to the base frame, On both sides of the base member of one of the band-shaped fastening pieces, a plurality of fragmented surrounding members are arranged in a row to prevent the displacement of the member, and each of the arranged surrounding members is mutually reciprocated. Between the surrounding members on both sides of the fastening piece, facing the upper surface so as not to impair the flexibility of the base member, between the surrounding members on the fastening pieces, between the surrounding members, so as not to impair the flexibility of the base member. This side is provided with a soft material contact member, and the member has a plurality of protrusions on a surface facing the upper surface, and the protrusions are opposite to the window with respect to the tip end. The projecting direction is inclined to the side opposite to the window so that the force is applied in the direction of the window when the force is applied toward the side of the window, and it is stretched against the force applied toward the side of the window.
[0007]
[Action]
The cloth curved in an arc shape is attached to the upper surface of the base frame, and the cloth curved in the arc shape is held by the base frame by pressing the cloth with a fastening piece. When the cloth curved in an arc shape is pulled toward the outside of the window at a location outside the fastening piece, the pulling force is applied to the convex portion of the member on the fastening piece as a lateral force. Therefore, the convex portion flutters in the direction of the pulling force, and the resistance to the pulling force is small. Thus, the fabric can be displaced in the above direction with a light pull. On the other hand, when the arcuately curved cloth is pulled toward the window at the location of the window, the pulling force is applied to the projection as a frontward force. Therefore, the convex portion is in a state of being stretched against the pulling force, and exhibits a large resistance to the displacement of the cloth curved in an arc shape in the direction of the pulling force.
[0008]
【Example】
Hereinafter, drawings showing an embodiment of the present application will be described. 1 and 2, reference numerals 1 to 24 denote a generally known structure of an arcuately curved cloth upholstery and an embroidery sewing machine, and 1 denotes an arcuately curved cloth upholstery. A hat frame exemplified as a frame, 2 is a base frame thereof, 3 is a connecting portion to a drive unit provided in the embroidery sewing machine, 4 is an upper surface of the base frame 2, and a cloth-covered surface having an arc-shaped cross section as shown in FIG. Has become. Reference numeral 5 denotes a window for keeping the embroidery area, 6 denotes an edge on one side of the window 5 in the axial direction of the base frame 2 on the upper surface 4, 7 denotes an edge on the other side, and 8 shown in FIG. Non-slip members (e.g., urethane rubber thin plates) provided at the edges of the base frame 2, and 9 and 10 in FIG. 1 are connecting pieces provided on the left and right sides of the base frame 2 for connecting the holding frame. At 11, it is attached to the base frame 2. Next, reference numeral 14 denotes a holding frame for holding the cloth curved in an arc shape with respect to the base frame, and reference numerals 15 and 16 denote holding the cloth curved in an arc shape on the edges 6, 7, respectively. A fastening piece 17 for attaching is a stopper for connecting one end of both fastening pieces 15 and 16 to the base frame 2, and one end of both fastening pieces 15 and 16 is connected to the above-mentioned connection. A foldable fastener for connecting to the piece 9 is illustrated. Reference numeral 18 denotes a stopper for connecting the other end of the two fastening pieces 15 and 16 to the base frame 2. The other end of the two fastening pieces 15 and 16 is detachably connected to the connecting piece 10. An example of a hanging tool for performing the operation is shown below. In FIG. 2, reference numeral 22 denotes a bed of the embroidery sewing machine, 23 denotes a needle, and 24 denotes a cloth presser.
[0009]
Next, the fastening piece 15 will be described in detail. Reference numeral 26 denotes a base member, which has a flexibility so as to be capable of bending and deforming in accordance with the shape of the upper surface 4, and is formed of, for example, a stainless steel thin plate. Numeral 27 designates both sides of the base member 26 so as to surround the contact member 28 in order to prevent a lateral displacement of the contact member 28 provided on the surface of the base member 26 facing the upper surface 4 of the base frame as shown in FIGS. The surrounding members provided in the state shown in the figure with respect to the edges are formed by bending and raising both edges of the base member 26 as shown in the figure. As shown in the figure, the surrounding member is formed in a fragmentary shape with a notch 27a interposed therebetween so as not to impair the flexibility of the base member 26. Reference numeral 28 denotes a member constituting a portion of the fastening piece 15 on the side facing the upper surface 4 and is formed of a soft material such as open-cell urethane foam rubber. When the member is made of a material that does not impair the flexibility of the soft material, a flat fastening piece 15 is put on the arc-shaped window 5 as shown in FIG. The flat-shaped fastening piece 15 can be fitted onto the arc-shaped embroidery area 33b while elastically bending the arc-shaped embroidery area 33b.
[0010]
Reference numeral 29 denotes a surface of the member 28 facing the upper surface 4, and includes a plurality of convex portions 30. Each of the convex portions 30 repels in a direction applied to a tip portion 30c of the tip portion 30c toward a side opposite to the window 5 and stretches against a force applied toward the window 5 side. 3, the projecting direction (the direction of a line 30a from the center of the base of the projection 30 to the tip 30c of the projection) is inclined to the side opposite to the window 5 side. The protrusion 30 is exemplified as a streak which is long in the circumferential direction of the base frame 2, but may be a plurality of warts. The contact member 28 as described above has a hardness of about 70 degrees in a spring-type hardness test, for example, so as to exhibit sufficient resistance to compression and contraction due to a force applied to the protrusion 30 in the front direction as described later. (The angle may be 60 to 80 degrees). Next, the other tightening piece 16 has a structure including a base member having the same configuration as the above-described tightening piece 15 and a soft material contact member having a flat surface facing the upper surface 4. However, a structure similar to the above-mentioned fastening piece 15 may be used.
[0011]
The method of using the cloth upholstery frame 1 having the above-described configuration and curved in an arc shape is well known, and the cloth 33 curved in an arc shape to be embroidered on the clothed surface 4 of the base frame 2 such as a hat. 32 is attached so that its embroidery area is located in the window 5. Next, the holding frame 14 is put on the front part 33, the stopper 18 is hung on the connecting piece 10, and the other stopper 17 is folded. , 7 and the front portion 33 is held by the base frame 2. In the holding state, if the cloth curved in the arc shape of the embroidery area in the window 5 is not tight, the work of stretching it is performed as follows. As shown in FIG. 3, the upper end 33 a of the front part 33 is pulled in the direction of the arrow 34 outside the window 5. The pulling force is applied to the tip portion 30c of the convex portion 30 laterally as shown by an arrow 35. For this reason, the tip portion 30c of the convex portion 30 flows toward the side opposite to the window 5 as indicated by reference numeral 30b, and shows only a small resistance to the pulling force in the direction of the arrow 34. Therefore, the cloth curved in the arc shape of the front part 33 can be moved in the direction of the arrow 34 with a relatively small force, and the tensioning operation can be easily performed.
[0012]
The cloth-clad frame 1 of the arc-curved cloth after the mounting of the arc-curved cloth as described above is connected to the drive unit of the embroidery sewing machine as is well known using the connection unit 4. The embroidery is performed on the embroidery area in the state as shown in FIG. In this case, even if the cloth curved in an arc shape of the front portion 33 is pulled toward the window 5 as shown by an arrow 36 in FIG. It is applied to the front end portion 30c in the front direction (applied in a direction in which the protruding portion 30 is to be compressed and contracted as indicated by an arrow 37). For this reason, the convex portion 30 is in a state of being stretched against the pulling force, and exhibits a large resistance force to the cloth curved in an arc shape shifting in the direction of the arrow 36. Therefore, even if the above-mentioned force is applied, the cloth curved in an arc shape is prevented from being displaced, and the tension state of the front surface portion 33 in the window 5 can be maintained, so that appropriate embroidery can be performed in the embroidery area.
[0013]
【The invention's effect】
As described above, in the present invention, when it is desired to embroider the cloth 33 curved in an arc shape, the cloth 33 curved in an arc shape is attached to the upper surface 14 of the base frame 2 and the fastening piece 15 is used. By pressing down, there is an effect that the cloth 33 curved in an arc shape by the base frame 2 can be held and used for embroidery.
[0014]
Further, since a fastening member made of a soft material having a plurality of convex portions is provided on a surface of the fastening piece 15 facing the upper surface 4, the cloth 33 curved in an arc shape is provided on the upper surface of the base frame 2. 14 and pressed by the fastening piece 15, there is an effect that the contact member 28 made of a soft material is abutted against the cloth 33.
[0015]
Further, according to the present invention, even if the base member of the fastening piece 15 is provided with the abutment member 28, the abutment member 28 is formed of the surrounding members 27 on both sides of the base member 26 of the fastening piece 15. Therefore, there is an effect that even if a large force is applied in the lateral direction, there is no possibility of lateral displacement.
[0016]
Furthermore, in the present invention, even if the surrounding member 27 for preventing the lateral displacement of the contact member 28 is disposed on the side of the fastening piece 15 opposite to the base frame upper surface 4 on both sides of the base member 26, A lacking portion 27a is interposed between each of the plurality of fragmentary surrounding members 27 so as not to impair the flexibility of the base member, and the member 28 is formed of a soft material. On the arc-shaped embroidery area 33b, which is placed on the arc-shaped window 5, the flat-shaped fastening piece 15 is elastically bent into an arc-like shape, and There is an epoch-making effect that can be adapted to
[0017]
Moreover, when the cloth 33 curved in an arc shape on the window 5 is loose in the holding state, it is necessary to stretch the cloth 33 to the window 5. In this case, the cloth 33 is formed outside the fastening piece 15 in an arc shape. When the cloth 33 curved to the outside is pulled along the upper surface of the base frame toward the outside of the window 5 as shown by an arrow 34 in FIG. Since it is made of a soft material because it is applied in the horizontal direction, and it is configured so as to flutter in that direction when a force is applied to the side opposite to the window 5, the convex portion 30 easily moves outward. The cloth 33, which is curved in an arc shape, has a small resistance to the outward pulling of the cloth 33, and the cloth 33, which is curved in an arc shape, can be easily shifted in the outward direction to be curved in an arc shape. There is an advantage that the work of stretching the fabric can be easily performed.
[0018]
In addition, even when the cloth 33 curved in an arc shape is easily shifted as described above, in the case of embroidering on the cloth 33 curved in an arc shape, the cloth 33 curved in an arc shape is illustrated. 4, even if a force pulling toward the window 5 is applied as indicated by an arrow 36 of FIG. Since it is inclined to the opposite side, the pulling force is applied to the projection 30 so as to protrude from the front, so that the projection 30 is in a state of protruding against the pulling force, Accordingly, the resistance of the cloth 33 curved in the arc shape to the displacement in the direction of the window becomes extremely large, and the state in which the cloth curved in the arc shape is tightly fitted to the window 5 can be maintained firmly. There is an advantage that proper embroidery without collapse can be performed.
[Brief description of the drawings]
FIG. 1 is a perspective view of a cloth upholstery frame of cloth curved in an arc shape.
FIG. 2 is a partial longitudinal sectional view showing a use state.
FIG. 3 is a cross-sectional view showing a state in which a cloth curved in an arc shape is pulled out of a window.
FIG. 4 is a cross-sectional view illustrating a state in which a cloth curved in an arc shape is pulled toward a window.
[Explanation of symbols]
2 Base frame 5 Windows 15, 16 Tightening strip 28 Applying member 30 Convex part

Claims

円弧状に湾曲している布の添え付けの為に上面が断面円弧状となっていると共に、該上面には円弧状に湾曲している布の刺繍領域を位置させる為の窓が備えられている基枠と、円弧状に湾曲している布を上記上面において基枠の軸線方向における上記窓の一方の側の円弧状に形成された縁部に添付けできるように弾力的な曲付けを可能とする帯状の薄板製の締付片と、他方の側の円弧状に形成された縁部に添付けできるように弾力的な曲付けを可能とする帯状の薄板製のもう一つの締付片と、上記両締付片における夫々の一方の端部を上記基枠に連結する為の止具と、他方の端部を上記基枠に連結する為のもう一つの止具とを有する円弧状に湾曲している布の布張枠において、上記少なくとも一方の帯状の締付片における基部材の両側には、基部材における上記基枠上面と対向する側の面に備えさせる当部材の横ずれを防止する為にその当部材囲むように、複数の断片状の囲み部材を列設させ、かつ、それらの列設させた囲み部材の夫々の相互間には、基部材の屈曲性を損なわぬように夫々欠如部を介在させ、さらに締付片における上記両側の囲み部材の間には、基部材の屈曲性を損なわぬように上記上面と対向する側が軟質材製の当部材を備えさせると共に、該当部材は上記上面との対向面に複数の凸部を備えており、しかも、それらの凸部は、その先端部に対して上記窓とは反対の側に向けて力が加わるのに対してはその方向になびき、窓の側に向けて力が加わるのに対しては突っ張るよう、その突出方向を上記窓とは反対の側に傾斜させてあることを特徴とする円弧状に湾曲している布の布張枠。The upper surface has an arc-shaped cross section for attaching the cloth curved in an arc shape, and the upper surface is provided with a window for positioning an embroidery area of the cloth curved in an arc shape. Base frame, and elastic bending so that the cloth curved in an arc shape can be attached to the arc-shaped edge on one side of the window in the axial direction of the base frame on the upper surface. A strip-shaped fastening strip which allows for the strip and another fastening which can be elastically bent so that it can be attached to the arc-shaped edge on the other side. A circle having a piece, a stop for connecting one end of each of the fastening pieces to the base frame, and another stop for connecting the other end to the base frame. In the cloth-covered frame of the cloth curved in an arc shape, on both sides of the base member in the at least one band-shaped fastening piece, In order to prevent lateral displacement of the contact member provided on the surface of the member opposite to the base frame upper surface, a plurality of fragment-shaped surrounding members are arranged in line so as to surround the contact member, and the members are arranged in line. A missing portion is interposed between each of the enclosed members so as not to impair the flexibility of the base member.Furthermore, between the surrounding members on both sides of the fastening piece, the flexibility of the base member is impaired. The side facing the upper surface is provided with a soft member, and the corresponding member is provided with a plurality of convex portions on the surface facing the upper surface. When the force is applied to the side opposite to the window, it flutters in that direction, and when the force is applied to the window side, it is stretched, so that the projecting direction is Is curved in an arc, characterized by being inclined to the opposite side And are cloth-clad frame of the cloth.