JP5713278B2 - Winding color - Google Patents

Winding color Download PDF

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JP5713278B2
JP5713278B2 JP2011016221A JP2011016221A JP5713278B2 JP 5713278 B2 JP5713278 B2 JP 5713278B2 JP 2011016221 A JP2011016221 A JP 2011016221A JP 2011016221 A JP2011016221 A JP 2011016221A JP 5713278 B2 JP5713278 B2 JP 5713278B2
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winding
collar
retainer
bottom inclined
rolling element
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JP2012153519A (en
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片岡 雄
雄 片岡
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株式会社片岡機械製作所
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Description

本発明は、中空の巻芯を帯状シート巻取装置に備えた巻軸の中心駆動軸上に該中心駆動軸に対して回転可能に保持すると共に、中心駆動軸から回転力伝達手段を介して回転力を受け、その回転力を前記巻芯に伝達する巻取カラーに関する。 The present invention holds a hollow winding core on a central driving shaft of a winding shaft provided in a belt-shaped sheet winding device so as to be rotatable with respect to the central driving shaft, and from the central driving shaft via a rotational force transmitting means. The present invention relates to a winding collar that receives a rotational force and transmits the rotational force to the core.

従来、帯状シート巻取装置には、広幅の帯状シートをスリッターで複数条に分割しながら、その分割された帯状シートを個々の巻芯のまわりに巻取るために、分割された帯状シート毎の巻芯を貫通して支持する共通の巻軸を備えるものがある。この巻軸は、中心駆動軸と、この中心駆動軸の外周に所定の間隔で装着した多数個の狭幅の巻取カラーと、中心駆動軸から巻取カラーに回転力を伝達する回転力伝達手段とからなる。   Conventionally, in a belt-like sheet winding device, a wide belt-like sheet is divided into a plurality of strips by a slitter, and the divided belt-like sheet is wound around each core in order to take up each of the divided belt-like sheets. Some have a common winding shaft that penetrates and supports the winding core. The winding shaft includes a central driving shaft, a plurality of narrow winding collars mounted on the outer periphery of the central driving shaft at predetermined intervals, and a rotational force transmission that transmits rotational force from the central driving shaft to the winding collar. It consists of means.

従来、巻取カラーには、巻軸の中心駆動軸に同心に回転自在に装着され、前記中心駆動軸から回転力伝達手段を介して回転力を受けるカラー本体と、前記カラー本体の外周面に円周方向に間隔をとって設けた複数の溝であって当該溝の底面が夫々前記中心駆動軸の回転方向沿いに次第に低くなるように形成してある複数の底面傾斜溝と、前記底面傾斜溝に配置した転動体と、前記転動体を前記底面傾斜溝から脱落しないよう収容する空所を持つ、前記カラー本体に回転自在に装着した環状のリテーナとを備え、前記カラー本体に被さっている、帯状シート巻取用の中空の巻芯が、前記カラー本体に対して前記底面傾斜溝が浅くなる方向に回転することにより、前記転動体が前記底面傾斜溝の浅い部分に移動すると共に底面傾斜溝の底面により押上げられ、この転動体が前記巻芯の内周面を押圧することによって、巻芯をカラー本体に固く保持するものがある(例えば特開平02−132043号公報参照)。 Conventionally, a winding collar is rotatably mounted concentrically on a central driving shaft of a winding shaft, and receives a rotational force from the central driving shaft through a rotational force transmitting means, and an outer peripheral surface of the collar main body. A plurality of grooves provided at intervals in the circumferential direction, wherein the bottom surfaces of the grooves are formed such that the bottom surfaces thereof gradually become lower along the rotation direction of the central drive shaft, and the bottom surface inclination A rolling element disposed in the groove; and an annular retainer rotatably mounted on the collar body having a space for accommodating the rolling element so as not to fall out of the bottom inclined groove, and covers the collar body. The hollow core for winding the belt-like sheet rotates in the direction in which the bottom inclined groove becomes shallow with respect to the collar body, so that the rolling element moves to the shallow portion of the bottom inclined groove and the bottom inclined. Depending on the bottom of the groove Raised, by the rolling elements presses the inner circumferential surface of said winding core, there is one that firmly holds the core in collar body (see, for example, JP-A-02-132043).

上述のような巻取カラー多数個を中心駆動軸に装着して構成された巻軸では、巻芯の着脱を円滑に行うという観点から、巻芯の着脱時には巻取カラーの転動体が底面傾斜溝の深い部分に移動しており、カラー本体の中心から転動体の頂点までの距離が巻芯の内周面の半径以下になっていることが望ましい。   In the case of a winding shaft constructed by mounting a number of winding collars on the central drive shaft as described above, the rolling element of the winding collar is inclined at the bottom when the core is attached / detached from the viewpoint of smooth attachment / detachment of the core. It has moved to the deep part of a groove | channel, and it is desirable for the distance from the center of a collar main body to the vertex of a rolling element to be below the radius of the internal peripheral surface of a winding core.

ところが、一般に、巻芯の長さは巻軸の長さより短く、巻軸には巻芯を装着していない部分が生じる。そしてこの巻芯を装着していない部分にある巻取カラーのリテーナは巻取中にカラー本体に対して回転し得るため、巻取終了後には、巻取カラーの転動体が底面傾斜溝の最も深い部分に位置から浅い部分に移動しており、カラー本体の中心から転動体の頂点までの距離が巻芯の内周面の半径より大きくなるように様々な突出量で突出している場合が多い。その場合、巻芯上に形成された帯状シートの巻取ロールを巻芯と一緒に巻軸から抜取るとき、その抜取り抵抗が非常に大きくなり円滑な抜取りができなくなるので、転動体が巻芯内周面の高さを超えて突出している巻取カラーについて、巻取ロールを抜取る前に転動体の突出力が最も小さくなるように、予め作業者がリテーナをカラー本体に対して底面傾斜溝が深くなる方向に回転させる必要がある。しかし、このような作業は面倒あり時間もかかるので、帯状シート巻取装置の稼働率を低下させる原因となる。   However, in general, the length of the winding core is shorter than the length of the winding shaft, and a portion where the winding core is not mounted is generated on the winding shaft. Since the take-up collar retainer on the part where the take-up core is not mounted can rotate with respect to the collar body during take-up, the take-up collar rolling element is the most in the bottom inclined groove. It moves to a shallow part from a position in a deep part, and often protrudes with various protrusions so that the distance from the center of the collar body to the top of the rolling element is larger than the radius of the inner peripheral surface of the winding core. . In that case, when the winding roll of the belt-like sheet formed on the winding core is pulled out from the winding shaft together with the winding core, the pulling resistance becomes very large and smooth rolling cannot be performed. For the winding collar protruding beyond the height of the inner peripheral surface, the operator tilts the retainer with respect to the collar body in advance so that the rolling output of the rolling element is minimized before the winding roll is pulled out. It is necessary to rotate the groove in a deep direction. However, such work is troublesome and takes time, which causes a reduction in the operating rate of the belt-like sheet winding device.

特開平02−132043号公報Japanese Patent Laid-Open No. 02-132043

本発明は、上述のような問題点に鑑み、多数個の巻取カラーを中心駆動軸に装着して構成した巻軸から、その巻軸により貫通して支持した巻芯と共に該巻芯上に形成した帯状シートの巻取ロールを、予め面倒な作業をすることなく円滑に抜取ることができるようにするのに適した巻取カラーを得ることを課題としている。 In view of the above-described problems, the present invention has a winding shaft formed by mounting a number of winding collars on a central drive shaft, and a core that is penetrated and supported by the winding shaft on the winding core. It is an object of the present invention to obtain a winding collar suitable for enabling the formed belt-shaped sheet winding roll to be smoothly pulled out without a troublesome work in advance.

そこで本発明は、複数の帯状シートを巻取るための個々の中空の巻芯を貫通して支持する巻軸を構成するために、中心駆動軸に多数個装着される環状の巻取カラーであって、かつ前記中心駆動軸に同心に回転自在に装着され、前記中心駆動軸から回転力伝達手段を介して回転力を受けるカラー本体と、前記カラー本体の外周面に円周方向に間隔をとって設けた、底面が夫々前記中心駆動軸の回転方向沿いに次第に低くなるように形成してある複数の底面傾斜溝と、前記底面傾斜溝に配置した転動体と、前記転動体を前記底面傾斜溝から脱落しないよう収容する空所を持つ、前記カラー本体に回転自在に装着した環状のリテーナとを備え、前記カラー本体に被さっている前記巻芯が、前記カラー本体に対して前記底面傾斜溝が浅くなる方向に回転することにより、前記転動体が前記底面傾斜溝の浅い部分に移動すると共に該底面傾斜溝の底面により押上げられ、この転動体が前記巻芯の内周面を押圧することによって、前記巻芯を前記カラー本体に固く保持することができる巻取カラーにおいて、前記カラー本体の外周面の、前記リテーナで覆われる部分に、前記複数の底面傾斜溝の列に沿うように形成した収容溝と、前記収容溝に収容した、該収容溝の伸長方向に弾力的に伸縮可能な伸縮体と、前記カラー本体に設けた、前記伸縮体の一端に係合する第1係合手段と、前記リテーナに設けた、前記伸縮体の他の一端に係合する第2係合手段とからなり、前記カラー本体に巻芯が被さっていないとき前記転動体が前記底面傾斜溝の深い部分に戻るように前記リテーナを前記カラー本体に対して前記底面傾斜溝が深くなる方向へ付勢するリテーナ付勢機構を備えることを特徴とする。 Accordingly, the present invention is an annular winding collar that is mounted on a central drive shaft in order to constitute a winding shaft that penetrates and supports individual hollow cores for winding a plurality of belt-like sheets. And a collar body that is rotatably mounted concentrically on the center drive shaft and receives a rotational force from the center drive shaft via a rotational force transmission means, and an outer circumferential surface of the collar body is spaced circumferentially. Te are provided, a plurality of bottom inclined groove bottom surface is formed so as to gradually decreases along the direction of rotation of each said central drive shaft, and rolling elements disposed in said bottom surface inclined groove, the said rolling element bottom surface having a cavity for housing so as not to fall off from the inclined groove, said and an annular retainer rotatably mounted on the collar body, said core lying over the collar body, the bottom surface inclined with respect to the collar body Turn in the direction that the groove becomes shallower By doing so, the rolling element moves to the shallow portion of the bottom inclined groove and is pushed up by the bottom surface of the bottom inclined groove, and the rolling element presses the inner peripheral surface of the winding core, thereby In the winding collar that can be firmly held in the collar body, a housing groove formed along the row of the plurality of bottom surface inclined grooves in a portion of the outer peripheral surface of the collar body covered with the retainer, A telescopic body that is accommodated in the housing groove and can be elastically expanded and contracted in the extending direction of the housing groove, a first engagement means that is provided on the collar body and engages with one end of the elastic body, and the retainer Second engaging means that engages with the other end of the telescopic body, and when the collar body does not cover a winding core, the rolling element returns to a deep portion of the bottom inclined groove. Retainer to the color body Characterized in that it comprises a retainer biasing mechanism for biasing to the direction in which the bottom surface inclined groove becomes deeper for.

本発明によれば、転動体が自動的に底面傾斜溝の深い部分に確実に戻る巻取カラーを得ることができ、しかも、巻取カラーの幅や厚みを、従来の巻取カラーと同程度に小さく抑えることができる。そのため、本発明の巻取カラーを用いて巻軸を構成すると、その巻軸により貫通して支持した巻芯上に形成された巻取ロールを、その巻芯と一緒に巻軸から、予め面倒な作業をすることなく円滑に抜取ることができるようになる。また外径の大きい中心駆動軸を採用することで撓みにくい巻軸を得ることができ、帯状シート巻取装置の生産性が向上する。   According to the present invention, it is possible to obtain a winding collar in which the rolling element automatically returns to the deep part of the bottom inclined groove, and the width and thickness of the winding collar are the same as those of the conventional winding collar. Can be kept small. Therefore, when the winding shaft is configured using the winding collar of the present invention, the winding roll formed on the winding core that is penetrated and supported by the winding shaft is previously taken care of from the winding shaft together with the winding core. Can be removed smoothly without any troublesome work. Further, by adopting a central drive shaft having a large outer diameter, a winding shaft that is difficult to bend can be obtained, and the productivity of the belt-like sheet winding device is improved.

また、伸縮体が圧縮コイルバネであると、その両端と第1係合手段と第2係合手段とを結合する必要がないので組立が簡単になる。   Further, if the expansion / contraction body is a compression coil spring, it is not necessary to connect both ends thereof with the first engagement means and the second engagement means, so that assembly is simplified.

また、本発明では、少なくとも一つの前記底面傾斜溝の中に、転動体の移動方向沿いに伸長した支持体を底面傾斜溝の深さ方向に弾力的に変位可能に設け、底面傾斜溝の深い部分に移動した転動体を巻芯の内周面に押付け可能に支持体によって下から支えるとよい。それによって、リテーナ付勢機構によりリテーナをカラー本体に対して底面傾斜溝が次第に深くなる方向へ付勢していても、転動体を、底面傾斜溝の深い部分から、その転動体が底面傾斜溝の底面と巻芯内周面とに挟まれて楔として働く位置まで確実に移動させることができ、巻芯の内径にばらつきがあり巻芯の内径が標準より多少大きくても、その巻芯を確実にカラー本体に固定することができる巻取カラーを得ることができる。また支持体による転動体の巻芯への押付け力が比較的小さくても、巻芯固定時にリテーナには支持体上の転動体を介して十分大きい回転力が働くので、支持体による転動体の押上げ力を小さくすることで、巻芯の外挿抵抗を小さく抑えることができる。そのため多数個の幅の狭い巻取カラーを中心駆動軸に装着して巻軸を構成する場合、巻芯が長いものであっもてその巻芯を容易に外挿可能な巻軸を得ることができる。しかも従来のように転動体とは別に巻芯内周面を押接するピンやバネ手段埋設用の穴をリテーナに設けることが不要になる。   Further, in the present invention, in at least one of the bottom inclined grooves, a support extended along the moving direction of the rolling element is provided so as to be elastically displaceable in the depth direction of the bottom inclined grooves, and the bottom inclined grooves are deep. The rolling element that has moved to the portion may be supported from below by a support so that it can be pressed against the inner peripheral surface of the core. As a result, even if the retainer biasing mechanism biases the retainer against the collar body in the direction in which the bottom inclined groove gradually becomes deeper, the rolling element is moved from the deep part of the bottom inclined groove to the bottom inclined groove. Even if the inner diameter of the core is slightly larger than the standard and the inner diameter of the core is slightly larger than the standard A winding collar that can be securely fixed to the color body can be obtained. Even if the pressing force of the rolling element to the core by the support is relatively small, a sufficiently large rotational force acts on the retainer via the rolling element on the support when the winding core is fixed. By reducing the push-up force, the extrapolation resistance of the core can be kept small. Therefore, when a winding shaft is configured by attaching a large number of narrow winding collars to the central drive shaft, it is possible to obtain a winding shaft that can be easily extrapolated even if the winding core is long. . In addition, it is not necessary to provide a pin for pressing the inner peripheral surface of the core or a hole for embedding the spring means in the retainer separately from the rolling elements.

また、本発明では、前記収容溝内に、該収容溝の伸長方向に拘束して収容した、該収容溝の深さ方向に自由端が変位可能な片持ち梁状の止め板と、前記止め板の自由端付近に形成した穴又は切欠きと、前記転動体が底面傾斜溝の深い部分の所定位置にあるとき前記穴又は切欠きに嵌り得る、前記リテーナの内周面に設けた突起と、前記リテーナの外周面の、止め板に対応する箇所に形成した開口とを備えるとよい。それによって、中心駆動軸から受けた回転力を巻芯に伝達する機能を簡単に短時間で選択的に停止したり復活させたりすることができる。そのため、例えば、中心駆動軸に多数の巻取カラーを装着して構成した巻軸を用いて幅の狭い多数の帯状シートを同時に個々の巻芯に取る場合に、各帯状シートに生ずる帯状シート単位幅当りの巻取張力が帯状シート相互間で均一になるよう、各巻芯に対して回転力を伝達する巻取カラーの個数を帯状シートの幅に応じて簡単に調整することができるようになるので、歩留の向上を図ることができる。 Further, according to the present invention, a cantilever-shaped stop plate that is constrained and accommodated in the accommodating groove in the extending direction of the accommodating groove and whose free end can be displaced in the depth direction of the accommodating groove; A hole or notch formed near the free end of the plate, and a protrusion provided on the inner peripheral surface of the retainer that can fit into the hole or notch when the rolling element is in a predetermined position in a deep part of the bottom inclined groove. It is good to provide the opening formed in the location corresponding to a stop plate of the outer peripheral surface of the said retainer. Thereby, the function of transmitting the rotational force received from the central drive shaft to the winding core can be selectively stopped or restored in a short time. Therefore, for example, when a plurality of narrow strip sheets are simultaneously taken on individual cores using a winding shaft configured by mounting a large number of winding collars on the central drive shaft, the strip sheet unit generated in each strip sheet The number of winding collars that transmit the rotational force to each winding core can be easily adjusted according to the width of the belt-like sheet so that the winding tension per width is uniform between the belt-like sheets. Therefore, the yield can be improved.

図1は本発明の一実施例に係る巻取カラーの正面図である。FIG. 1 is a front view of a winding collar according to an embodiment of the present invention. 図2は図1のA1ーA1矢視断面図である。2 is a cross-sectional view taken along arrow A1-A1 in FIG. 図3は巻取カラーの縦断面の上半分を示す断面図である。FIG. 3 is a cross-sectional view showing the upper half of the vertical cross section of the winding collar. 図4は図1のA2ーA2矢視断面図である。4 is a cross-sectional view taken along arrow A2-A2 in FIG. 図5は巻芯非装着時の巻取カラーの図2に相当する断面図である。FIG. 5 is a sectional view corresponding to FIG. 2 of the winding collar when the core is not attached. 図6は図5のA3−A3矢視断面図である。6 is a cross-sectional view taken along arrow A3-A3 in FIG. 図7は支持体の平面図である。FIG. 7 is a plan view of the support. 図8は巻芯外挿前の支持体の状態を示す説明図である。FIG. 8 is an explanatory view showing the state of the support before extrapolation of the core. 図9は巻芯外挿後の支持体の状態を示す説明図である。FIG. 9 is an explanatory view showing the state of the support after extrapolation of the core. 図10は図4のA4−A4矢視断面図である。10 is a cross-sectional view taken along arrow A4-A4 in FIG. 図11は突起が止め板から外れた状態を示す拡大断面図である。FIG. 11 is an enlarged cross-sectional view showing a state in which the protrusion is detached from the stopper plate. 図12は止め板を押し下げた状態を示す拡大断面図である。FIG. 12 is an enlarged sectional view showing a state in which the stopper plate is pushed down. 図13は止め板の穴に突起を嵌めた状態を示す拡大断面図である。FIG. 13 is an enlarged cross-sectional view showing a state in which a protrusion is fitted in the hole of the stopper plate.

次に図面を参照して本発明の一実施例について説明する。図1は本発明の一実施例に係る巻取カラーの正面図、図2は図1のA1ーA1矢視断面図、図3は図1に示す巻取カラーの縦断面の上半分を示す断面図、図4は図1のA2ーA2矢視断面図である。   Next, an embodiment of the present invention will be described with reference to the drawings. 1 is a front view of a winding collar according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along arrow A1-A1 in FIG. 1, and FIG. 3 is an upper half of a longitudinal section of the winding collar shown in FIG. 4 is a cross-sectional view taken along arrow A2-A2 in FIG.

巻取カラー1は、帯状シートを巻取るための巻軸の中心駆動軸2に同心に回転自在に装着され、中心駆動軸2から公知の回転力伝達手段3を介して回転力を受けるカラー本体4と、カラー本体4の外周面に円周方向に間隔をとって設けた複数の溝であって当該溝の底面が夫々中心駆動軸の回転方向沿いに次第に低くなるように形成してある複数の底面傾斜溝5と、底面傾斜溝5に配置した転動体6と、転動体6を底面傾斜溝5から脱落しないよう収容する空所7を持つ、カラー本体4に回転自在に装着した環状のリテーナ8とを備え、図2に示すように帯状シート巻取用の中空の巻芯がカラー本体4に被さっているとき、巻芯Cが、カラー本体4に対して底面傾斜溝5が浅くなる方向(図2に矢印Aで示す方向)に回転することにより、転動体6が底面傾斜溝5の浅い部分に移動すると共に底面傾斜溝5の底面により押上げられ、この転動体6が巻芯Cの内周面を押圧することによって、巻芯Cをカラー本体4に固く保持することができるものである。そしてカラー本体4に巻芯Cが被さっていないとき図5に示すように転動体6が底面傾斜溝5の深い部分に戻るようにリテーナ8をカラー本体4に対して底面傾斜溝5が次第に深くなる方向へ付勢するリテーナ付勢機構9を備える。 The winding collar 1 is mounted concentrically and rotatably on a central driving shaft 2 of a winding shaft for winding a belt-like sheet, and receives a rotational force from the central driving shaft 2 via a known rotational force transmitting means 3. 4 and a plurality of grooves provided on the outer peripheral surface of the collar body 4 at intervals in the circumferential direction, and the bottom surfaces of the grooves are formed so as to gradually become lower along the rotation direction of the central drive shaft. A bottom inclined groove 5, a rolling element 6 disposed in the bottom inclined groove 5, and a space 7 for accommodating the rolling element 6 so as not to fall off the bottom inclined groove 5. 2, when the hollow core for winding the belt-like sheet covers the collar body 4 as shown in FIG. 2, the core C has a shallow bottom inclined groove 5 with respect to the collar body 4. Rolling by rotating in the direction (indicated by arrow A in FIG. 2) 6 moves to a shallow portion of the bottom inclined groove 5 and is pushed up by the bottom surface of the bottom inclined groove 5, and the rolling element 6 presses the inner peripheral surface of the core C, thereby causing the core C to move to the collar body 4. It can be held firmly. Then, when the core C is not covered with the collar body 4, the retainer 8 is gradually deepened with respect to the collar body 4 so that the rolling element 6 returns to a deep part of the bottom slope groove 5 as shown in FIG. 5. A retainer urging mechanism 9 for urging in the direction is provided.

リテーナ付勢機構9は、カラー本体4の外周面の、リテーナ8で覆われる部分に、複数の底面傾斜溝5の列に沿うように形成した収容溝10と、収容溝10に収容した、該収容溝10の伸長方向に弾力的に伸縮可能な伸縮体11と、カラー本体4に設けた、伸縮体11の一端に係合する第1係合手段12と、リテーナ8に設けた、伸縮体11の他の一端に係合する第2係合手段13とからなる。   The retainer urging mechanism 9 is accommodated in the accommodation groove 10 formed along the row of the plurality of bottom face inclined grooves 5 in the portion covered with the retainer 8 on the outer peripheral surface of the collar body 4, A telescopic body 11 elastically expandable / contractible in the extending direction of the housing groove 10, a first engagement means 12 provided on one end of the telescopic body 11 provided on the collar body 4, and a telescopic body provided on the retainer 8. 11 and second engaging means 13 that engages with the other end of the head.

この実施例では、収容溝10は、図4に示すようにカラー本体4の外周面を一定の深さで一周している。また伸縮体11は、圧縮コイルバネであり、巻芯Cをカラー本体4に固定するとき、転動体6が底面傾斜溝5の浅い部分へ移動するようリテーナ9がカラー本体4に対して回転するのに支障がないよう、かつ、巻芯Cがカラー本体4上に被さってないとき、転動体6が底面傾斜溝5の深い部分へ移動するようリテーナ8がカラー本体4に対して回転するのに支障がないように、適当する長さ及びバネ定数を有している。第1係合手段12は、収容溝10を横断するように固設した係合体であり、カラー本体4の側面からカラー本体4の幅方向に形成した穴に装着したピン14からなる。なお、第1係合手段12は、必要に応じて、例えば収容溝10の底面に設けた突起としてもよいし、収容溝10がカラー本体の外周面を一周していないものであれば、その収容溝10の端部の壁面としてもよい。第2係合手段13は、リテーナ8の内周面に設けた突起であり、リテーナ8の外周面に設けた孔に装着したピン15からなる。 In this embodiment, as shown in FIG. 4, the receiving groove 10 makes a round around the outer peripheral surface of the collar body 4 at a constant depth. The elastic body 11 is a compression coil spring, and when the core C is fixed to the collar body 4, the retainer 9 rotates with respect to the collar body 4 so that the rolling element 6 moves to a shallow portion of the bottom inclined groove 5. The retainer 8 rotates relative to the collar body 4 so that the rolling element 6 moves to a deep part of the bottom inclined groove 5 when the winding core C is not covered on the collar body 4. It has an appropriate length and spring constant so as not to hinder . The first engaging means 12 is an engaging body fixed so as to cross the receiving groove 10, and includes a pin 14 mounted in a hole formed in the width direction of the collar body 4 from the side surface of the collar body 4. The first engagement means 12 may be, for example, a protrusion provided on the bottom surface of the housing groove 10 as necessary, or if the housing groove 10 does not make a round around the outer peripheral surface of the collar body, It is good also as a wall surface of the edge part of the accommodation groove | channel 10. FIG. The second engagement means 13 is a protrusion provided on the inner peripheral surface of the retainer 8 and includes a pin 15 attached to a hole provided on the outer peripheral surface of the retainer 8.

リテーナ8は、カラー本体4の外周面にすきまばめし、カラー本体4の片方の端部に形成した鍔部4aと、カラー本体4のもう片方に端部に止めねじ16で固着した環状体17とで挟んでいる。カラー本体4の鍔部4aの内周と、環状体17の、カラー本体4から突き出た端部の内周には、夫々ベアリング19が装着してある。各ベアリング19の内輪は中心駆動軸2の外周面に装着する。   The retainer 8 is loosely fitted to the outer peripheral surface of the collar body 4, and a collar 4 a formed at one end of the collar body 4, and an annular body 17 fixed to the other end of the collar body 4 with a set screw 16. And sandwiched between. Bearings 19 are mounted on the inner periphery of the collar portion 4 a of the collar body 4 and the inner periphery of the end portion of the annular body 17 protruding from the collar body 4. The inner ring of each bearing 19 is mounted on the outer peripheral surface of the center drive shaft 2.

転動体6が図5に示すように底面傾斜溝5の深い部分に位置しているとき、伸縮体11は圧縮されておらず、リテーナ付勢機構9は、リテーナ8をカラー本体4に対して底面傾斜溝5が深くなる方向へ付勢していない状態にある。この巻取カラー1上に巻芯Cを装着していない状態において、何らかの原因でカラー本体4に対してリテーナ8が回転すると共に転動体6が底面傾斜溝5の浅い部分に移動したとすると、第係合手段12に第2係合手段13が接近して伸縮体11が弾力的に圧縮され、その圧縮された伸縮体に反発力が生じ、それによってリテーナ付勢機構9は、リテーナ8をカラー本体4に対して底面傾斜溝5が次第に深くなる方向へ付勢する状態になり、リテーナ8がカラー本体4に対して底面傾斜溝5が次第に深くなる方向へ回転し、それに伴い転動体6が底面傾斜溝5の深い部分に復帰する。なお、転動体6の復帰を確実にするために、例えば伸縮体11を少し長いものに変更する等により、転動体6が底面傾斜溝5の深い部分に位置しているとき、巻芯Cの装着時に転動体6が底面傾斜溝5の浅い部分へ移動することに支障がない範囲で僅かに伸縮体11が圧縮されるようにしてもよい。 When the rolling element 6 is positioned at a deep portion of the bottom inclined groove 5 as shown in FIG. 5, the expansion / contraction body 11 is not compressed, and the retainer biasing mechanism 9 causes the retainer 8 to move against the collar body 4. The bottom inclined groove 5 is not energized in a deeper direction. When the core C is not mounted on the winding collar 1 and the retainer 8 rotates with respect to the collar body 4 for some reason and the rolling element 6 moves to a shallow portion of the bottom inclined groove 5, When the second engagement means 13 approaches the first engagement means 12 and the expansion / contraction body 11 is elastically compressed, a repulsive force is generated in the compressed expansion / contraction body, whereby the retainer urging mechanism 9 is operated by the retainer 8. The bottom inclined groove 5 is urged toward the collar body 4 in a direction in which the bottom inclined groove 5 gradually becomes deeper, and the retainer 8 rotates in the direction in which the bottom inclined groove 5 gradually becomes deeper with respect to the collar body 4, and accordingly the rolling element 6 returns to the deep part of the bottom inclined groove 5. In order to ensure the return of the rolling element 6, for example, when the rolling element 6 is positioned in a deep portion of the bottom inclined groove 5 by changing the stretchable body 11 to a slightly longer one, the core C The stretchable body 11 may be slightly compressed within a range that does not hinder the rolling element 6 from moving to the shallow portion of the bottom inclined groove 5 during mounting.

巻取カラー1は、巻芯Cの内径の大きさに多少のバラツキがあっても巻芯Cがカラー本体4に対して空回りしないよう確実に固定できるようすることが望ましい。そこで、この実施例の場合、巻取カラー1では、巻取開始時に巻芯Cを回転させたとき、その巻芯Cの内径が多少大きくても、その巻芯Cの内周面に、底面傾斜溝5の深い部分にある転動体6が確実に係合するようにするために、図5に示すように複数の底面傾斜溝5のうちの一つの底面傾斜溝5の中に、転動体6の移動方向沿いに伸びた支持体20を底面傾斜溝5の深さ方向に弾力的に変位可能に設け、底面傾斜溝5の深い部分に移動した転動体6を支持体20によって巻芯Cの内周面に押付け可能に下から支えている。   It is desirable that the winding collar 1 be surely fixed so that the winding core C does not run idle with respect to the collar body 4 even if there is some variation in the inner diameter of the winding core C. Therefore, in the case of this embodiment, in the winding collar 1, when the winding core C is rotated at the start of winding, even if the inner diameter of the winding core C is somewhat large, the inner surface of the winding core C has a bottom surface. In order to ensure that the rolling elements 6 in the deep part of the inclined groove 5 are engaged with each other, as shown in FIG. The support 20 extending along the moving direction 6 is provided so as to be elastically displaceable in the depth direction of the bottom inclined groove 5, and the rolling element 6 moved to a deep part of the bottom inclined groove 5 is wound around the core C by the support 20. It is supported from the bottom so that it can be pressed against the inner peripheral surface.

図6は図5のA3−A3矢視断面図、図7は支持体の長手方向を図面の左右方向に向けて示した支持体の平面図である。図8は巻取カラーに巻芯を外挿する前の支持体及び転動体の状態を示し、図9は巻取カラーに巻芯を外挿した後の支持体及び転動体の状態を示す。   6 is a cross-sectional view taken along the line A3-A3 of FIG. 5, and FIG. 7 is a plan view of the support showing the longitudinal direction of the support in the horizontal direction of the drawing. FIG. 8 shows the state of the support and the rolling element before the winding core is extrapolated to the winding collar, and FIG. 9 shows the state of the support and the rolling element after the winding core is extrapolated to the winding collar.

支持体20を底面傾斜溝5の深さ方向に弾力的に変位可能に設けるために、支持体20が、当該支持体20の、底面傾斜溝5の深い部分側の一端20aを自由端とし、他の一端20bを固定端とする片持ち梁になるよう、支持体20の他の一端20bに装着部21を設け、この装着部21を底面傾斜溝5の底面5沿いに装着している。装着部21は、その幅を底面傾斜溝5の幅に適合する幅を有し、その長さを底面傾斜溝5の長さに略等しい長さを有しているので、その装着部21を底面傾斜溝5に嵌めるだけで装着することができ、支持体20を底面傾斜溝5の中の所定位置に保持することができる。   In order to provide the support 20 so as to be elastically displaceable in the depth direction of the bottom inclined groove 5, the support 20 has one end 20 a on the deep part side of the bottom inclined groove 5 of the support 20 as a free end, A mounting portion 21 is provided at the other end 20 b of the support 20 so as to be a cantilever having the other end 20 b as a fixed end, and the mounting portion 21 is mounted along the bottom surface 5 of the bottom inclined groove 5. The mounting portion 21 has a width that matches the width of the bottom inclined groove 5 and has a length substantially equal to the length of the bottom inclined groove 5. It can be mounted simply by fitting into the bottom inclined groove 5, and the support 20 can be held at a predetermined position in the bottom inclined groove 5.

支持体20は弾性体からなり、それを底面傾斜溝5の中に収容する前には装着部21に対して図8に2点鎖線で示すように持ち上がっている。この支持体20を底面傾斜溝5の中に収容するとき、図8に実線で示すように下方に撓ませてあるので、底面傾斜溝5の中の支持体20は、その上に載せた転動体6を、その撓みの大きさ応じた力で弾力的に押上げることができる。そして支持体20によって押上げられた転動体6はリテーナ8の空所7内を上限に至るまで移動して、テーナ8外周面から突出する。この支持体20は、例えばばね鋼やステンレス鋼等のように弾性限度や疲労限度の高い弾性体で作るのが望ましい。   The support 20 is made of an elastic body, and is lifted with respect to the mounting portion 21 as indicated by a two-dot chain line in FIG. 8 before it is accommodated in the bottom inclined groove 5. When the support body 20 is accommodated in the bottom inclined groove 5, it is bent downward as shown by a solid line in FIG. 8, so that the support body 20 in the bottom inclined groove 5 is rolled onto it. The moving body 6 can be elastically pushed up with the force according to the magnitude of the bending. The rolling element 6 pushed up by the support 20 moves up to the upper limit in the space 7 of the retainer 8 and protrudes from the outer peripheral surface of the retainer 8. The support 20 is preferably made of an elastic body having a high elastic limit or fatigue limit such as spring steel or stainless steel.

支持体20の、転動体6との係合部20cは、図6に示すように転動体6と底面傾斜溝5の底面との接触部分Pの両脇に分かれており、図7に示すように転動体6の移動方向に沿って伸びている。そのため、支持体20は、転動体6の、底面傾斜溝5の底面との接触部分Pの両脇部分に係合して下から支えることができる。   As shown in FIG. 6, the engaging portion 20c of the support 20 with the rolling element 6 is divided on both sides of the contact portion P between the rolling element 6 and the bottom surface of the bottom inclined groove 5, as shown in FIG. Extending along the moving direction of the rolling element 6. Therefore, the support body 20 can be supported from below by engaging the both side portions of the contact portion P of the rolling element 6 with the bottom surface of the bottom inclined groove 5.

図7において支持体20と装着部21は一本の線材Wから形成してある。支持体20は、線材Wを一端に近い部分においてU字状に折曲げて形成してあり、U字状の折曲げ部分20aは支持体20の自由端となっており、折曲げ部分20aの両側の直線状の係合部20cで転動体6に係合することができる。装着部21は、線材Wの、支持体20を形成した残りの部分を底面傾斜溝5に適合するように折曲げて形成してある。支持体20と線材Wの残り部分との境目Bが折曲げてあり、ここが支持体20の固定端20bとなっている。   In FIG. 7, the support 20 and the mounting portion 21 are formed from a single wire W. The support 20 is formed by bending the wire W in a U-shape at a portion close to one end, and the U-shaped bent portion 20a is a free end of the support 20, and the bent portion 20a The rolling elements 6 can be engaged with the linear engaging portions 20c on both sides. The mounting portion 21 is formed by bending the remaining portion of the wire W on which the support body 20 is formed so as to fit the bottom inclined groove 5. The boundary B between the support 20 and the remaining portion of the wire W is bent, and this is the fixed end 20 b of the support 20.

巻取カラー1に巻芯Cを外挿する前は、図8に示すように、リテーナ8の空所7がカラー本体3の底面傾斜溝5の深い部分の上方に位置し、転動体6は底面傾斜溝5の深い部分に移動しており、支持体20により弾力的に押上げられて、リテーナ8の外周面から最大限に突出している。 Before the winding core C is extrapolated to the winding collar 1, the space 7 of the retainer 8 is located above the deep portion of the bottom inclined groove 5 of the collar body 3 as shown in FIG. It moves to a deep part of the bottom inclined groove 5 and is elastically pushed up by the support 20 and protrudes to the maximum extent from the outer peripheral surface of the retainer 8.

巻芯Cをカラー本体3に外挿すると、この巻芯Cは、図9に示すように転動体6を押下げ、転動体6を支えている支持体20は撓む。即ち支持体20は底面傾斜溝5の深さ方向に弾力的に変位して底面傾斜溝5の底面に近づく。そして転動体6は、支持体20と巻芯Cとに挟まれた状態で、支持体20から押上げ力を受け、巻芯Cの内周面に押付けられる。この実施例では、転動体6が球体でありリテーナ8に対してあらゆる方向に回転可能に保持されているので、外挿中の巻芯Cに働く抵抗が小さくなる。 When the winding core C is extrapolated to the collar body 3, the winding core C pushes down the rolling element 6 as shown in FIG. 9, and the support body 20 supporting the rolling element 6 bends. That is, the support 20 is elastically displaced in the depth direction of the bottom inclined groove 5 and approaches the bottom surface of the bottom inclined groove 5. The rolling element 6 receives a push-up force from the support body 20 while being sandwiched between the support body 20 and the core C and is pressed against the inner peripheral surface of the core C. In this embodiment, since the rolling element 6 is a sphere and is held so as to be rotatable in all directions with respect to the retainer 8, the resistance acting on the winding core C during extrapolation is reduced.

この状態で、巻芯Cに帯状シート先端を接続して中心駆動軸2を回転駆動すると、巻芯Cがカラー本体3に対して底面傾斜溝5が浅くなる方向に回転しようとする。そして中心駆動軸2を回転駆動するか、或いは作業者が巻芯Cを中心駆動軸2の回転方向と反対の方向に回すと、巻芯Cの内周面と転動体6との摩擦力によりその転動体6に回転力が生じ、その転動体6が支持体20上を底面傾斜溝5の浅い方へ向けて転がろうとしてリテーナ8をカラー本体3の外周面に沿う方向に押す。このとき、転動体6とリテーナ8との接点は、その接点とリテーナ8の中心とを結ぶ直線方向において、転動体6と支持体20との接点と、転動体6と巻芯Cの内周面との接点の間にあるため、転動体6は、その転動体6と巻芯Cの内周面との摩擦力より大きい力でリテーナ8を押すことができる。また回転力が生じた転動体6とリテーナ8との摩擦力は、転動体6による巻芯Cの内周面の押付力を増大させる方向に働く。それによってリテーナ8は、リテーナ付勢機構9の付勢力に抗しながらカラー本体3に対して底面傾斜溝5が浅くなる方向に回転し、そのリテーナ8の回転に伴い他の転動体6も底面傾斜溝5の浅い方へ移動し、各転動体6が底面傾斜溝5の底面と巻芯Cの内周面とに挟まれて楔として働く位置(図9に2点鎖線で示す)まで確実に移動することができる。その後は、転動体6は底面傾斜溝5の底面に押し上げられて、巻芯Cの内周面を押圧し、それによって巻芯Cがカラー本体3に固定される。 In this state, when the leading end of the belt-like sheet is connected to the winding core C and the central drive shaft 2 is driven to rotate, the winding core C tends to rotate in the direction in which the bottom inclined groove 5 becomes shallower than the collar body 3. When the center drive shaft 2 is rotationally driven or the operator rotates the core C in the direction opposite to the rotation direction of the center drive shaft 2, the frictional force between the inner peripheral surface of the core C and the rolling element 6 is applied. A rotational force is generated in the rolling element 6, and the rolling element 6 pushes the retainer 8 in a direction along the outer peripheral surface of the collar body 3 while trying to roll on the support 20 toward the shallower side of the bottom inclined groove 5. At this time, the contact point between the rolling element 6 and the retainer 8 is the contact between the rolling element 6 and the support member 20 and the inner circumference of the rolling element 6 and the core C in the linear direction connecting the contact point and the center of the retainer 8. Since it is between the contact points with the surface, the rolling element 6 can push the retainer 8 with a force larger than the frictional force between the rolling element 6 and the inner peripheral surface of the core C. Further, the frictional force between the rolling element 6 and the retainer 8 in which the rotational force is generated acts in a direction that increases the pressing force of the inner peripheral surface of the core C by the rolling element 6. As a result, the retainer 8 rotates in a direction in which the bottom inclined groove 5 becomes shallower with respect to the collar body 3 while resisting the biasing force of the retainer biasing mechanism 9, and the other rolling elements 6 are also bottoms as the retainer 8 rotates. It moves to the shallower side of the inclined groove 5 and surely reaches the position (indicated by a two-dot chain line in FIG. 9) where each rolling element 6 is sandwiched between the bottom surface of the bottom inclined groove 5 and the inner peripheral surface of the winding core C. Can be moved to. Thereafter, the rolling element 6 is pushed up to the bottom surface of the bottom inclined groove 5 and presses the inner peripheral surface of the core C, whereby the core C is fixed to the collar body 3.

中心駆動軸2に多数の巻取カラー1を装着して巻軸を構成する場合に、巻取カラー1は、中心駆動軸2から受けた回転力を巻芯Cに伝達する機能を選択的に停止したり復活させたりすることが簡単にできるのが望ましい。   When the winding shaft 1 is configured by mounting a number of winding collars 1 on the center drive shaft 2, the winding collar 1 selectively transmits a rotational force received from the center drive shaft 2 to the core C. It should be easy to stop and revive.

そこで、この実施例の巻取カラー1では、巻取開始前に必要に応じて転動体6を底面傾斜溝5の深い部分の所定位置に拘束したり、その拘束を解いたりすることができるようにするために、図4及び図10に示すように、収容溝10内に設けた片持ち梁状の止め板22と、止め板22の自由端付近に形成した穴23(図11に拡大して示す)と、転動体6が底面傾斜溝5の深い部分の所定位置にあるとき、穴23に嵌り得る、リテーナ8の内周面に設けた突起24と、リテーナ8の外周面の、止め板22に対応する箇所に形成した開口25とを備えている。   Therefore, in the winding collar 1 of this embodiment, the rolling element 6 can be constrained to a predetermined position in the deep part of the bottom inclined groove 5 and the restriction can be released as necessary before starting the winding. 4 and 10, a cantilever-shaped stop plate 22 provided in the receiving groove 10 and a hole 23 formed near the free end of the stop plate 22 (enlarged in FIG. 11). When the rolling element 6 is at a predetermined position in the deep part of the bottom inclined groove 5, the protrusion 24 provided on the inner peripheral surface of the retainer 8 that can be fitted into the hole 23, and the outer peripheral surface of the retainer 8 are stopped. And an opening 25 formed at a location corresponding to the plate 22.

止め板22はバネ鋼等の弾力的な板状の素材を折り返して形成してあり、その折り返し部分を挟んだ反対側は装着部26となっている。装着部26を収容溝10の底面に沿わせ、装着部26の後端の折り返し部分の内側をピン14に沿わせて係合させると共に装着部26の先端側に形成した折り曲げ部分の内側をピン27に沿わせて係合させることにより、止め板22をカラー本体4に係止している。そのため止め板22はカラー本体4に対して底面傾斜溝5の伸長方向に移動しないよう拘束されており、止め板22の自由端は収容溝10の深さ方向に弾力的に変位可能である。また圧縮コイルバネ11の一端は、止め板22の後端の折り返し部分を通じてピン14に係合している。突起24はリテーナの外周面に設けた孔に装着したピンからなる。なお穴23の代わりに止め板22の自由端付近に側縁から切り欠きを設けてもよい。   The stop plate 22 is formed by folding an elastic plate-like material such as spring steel, and the opposite side across the folded portion is a mounting portion 26. The mounting portion 26 is placed along the bottom surface of the receiving groove 10, the inside of the folded portion at the rear end of the mounting portion 26 is engaged along the pin 14, and the inside of the bent portion formed on the tip side of the mounting portion 26 is pinned. 27, the stop plate 22 is locked to the collar body 4. Therefore, the stop plate 22 is restrained so as not to move in the extending direction of the bottom inclined groove 5 with respect to the collar body 4, and the free end of the stop plate 22 can be elastically displaced in the depth direction of the receiving groove 10. One end of the compression coil spring 11 is engaged with the pin 14 through a folded portion at the rear end of the stop plate 22. The protrusion 24 includes a pin mounted in a hole provided on the outer peripheral surface of the retainer. Instead of the hole 23, a notch may be provided near the free end of the stop plate 22 from the side edge.

図4において止め板22の先端に接する突起24は、図5において破線で示した突起24であり、右上の底面傾斜溝5の深い部分に位置する転動体6の背後にある。突起24が穴23に対応する位置までリテーナ8をカラー本体4に対して更に反時計方向に回転可能にするために、転動体6は図5に示す位置から2点鎖線で示す位置まで移動可能にしてある。   4, the protrusion 24 in contact with the tip of the stop plate 22 is a protrusion 24 indicated by a broken line in FIG. 5, and is behind the rolling element 6 located in a deep portion of the bottom right inclined groove 5 in the upper right. In order to allow the retainer 8 to be further rotated counterclockwise with respect to the collar body 4 until the protrusion 24 corresponds to the hole 23, the rolling element 6 can be moved from the position shown in FIG. It is.

図11は、図4に示す止め板22及びその付近を拡大して示してあり、図11に示す状態で開口25に棒状体28を挿入して止め板22を押すことにより、図12に示すように止め板22の先端付近を下方へ変位させ、その状態で、図13に示すように、穴23と突起24が対向するようにリテーナ8をカラー本体4に対して反時計方向に回転させた後、棒状体28を開口25から抜くことにより、図13に示すように穴23に突起24が嵌まり、リテーナ8が突起24及び止め板22を通じてカラー本体4に拘束されて回転不能になって、転動体6が底面傾斜溝5の深い部分の所定位置に拘束され、巻取カラー1による巻芯Cへの回転力伝達機能が停止される。   FIG. 11 is an enlarged view of the stop plate 22 shown in FIG. 4 and its vicinity. FIG. 11 shows a state in which a rod-like body 28 is inserted into the opening 25 and the stop plate 22 is pushed in the state shown in FIG. As shown in FIG. 13, the retainer 8 is rotated counterclockwise with respect to the collar body 4 so that the hole 23 and the protrusion 24 face each other. After that, by removing the rod-shaped body 28 from the opening 25, the projection 24 is fitted into the hole 23 as shown in FIG. 13, and the retainer 8 is restrained by the collar body 4 through the projection 24 and the stop plate 22 and cannot rotate. Thus, the rolling element 6 is restrained at a predetermined position in the deep part of the bottom inclined groove 5, and the function of transmitting the rotational force to the core C by the winding collar 1 is stopped.

また図13の状態から、棒状体28を図13に鎖線で示すように開口25に挿入して止め板22を押すことにより、図13に2点と鎖線で示すように止め板22の先端付近を下方へ変位させて、突起24を穴23から抜き、図11に示すように突起24が止め板22の自由端の前方に位置するまで、リテーナ8を、拘束時とは逆方向に回転させた後、棒状体28を開口25から抜去ることにより、リテーナ8はカラー本体4に対して回転可能になり、転動体6が底面傾斜溝5の深い部分の所定位置から解放され、底面傾斜溝5の浅い部分へ移動可能になる。そしてカラー本体4に巻芯Cが固定可能な状態になり、巻取カラー1による巻芯Cへの回転力伝達機能が復帰する。   Further, from the state of FIG. 13, the rod-like body 28 is inserted into the opening 25 as shown by a chain line in FIG. 13 and the stop plate 22 is pushed, so that the vicinity of the tip of the stop plate 22 as shown by two points and a chain line in FIG. Is moved downward, the protrusion 24 is removed from the hole 23, and the retainer 8 is rotated in the direction opposite to that at the time of restraint until the protrusion 24 is positioned in front of the free end of the stop plate 22 as shown in FIG. After that, by removing the rod-shaped body 28 from the opening 25, the retainer 8 can rotate with respect to the collar body 4, and the rolling element 6 is released from a predetermined position in a deep part of the bottom surface inclined groove 5, so that the bottom surface inclined groove is formed. It becomes possible to move to the shallow part of 5. Then, the core C can be fixed to the collar body 4, and the function of transmitting the rotational force to the core C by the winding collar 1 is restored.

以上、一実施例を説明したが、本発明の実施形態は必要に応じて発明の要旨を変えることなく多様に変わり得る。例えば、本発明では、回転力伝達機能停止復帰用の上述の止め板22等を備えないものもあり得る。或いは、何れの底面傾斜溝内にも上述の支持体20を備えないものもあり得る。また転動体としてコロを用いることもできる。   As mentioned above, although one Example was described, embodiment of this invention can change variously, without changing the summary of invention as needed. For example, in the present invention, there may be one that does not include the above-described stop plate 22 for stopping and returning the rotational force transmission function. Alternatively, some of the bottom inclined grooves may not include the support 20 described above. A roller can also be used as the rolling element.

C 巻芯
1 巻取カラー
2 中心駆動軸
3 回転力伝達手段
4 カラー本体
5 底面傾斜溝
6 転動体
7 空所
8 リテーナ
9 リテーナ付勢機構
10 収容溝
11 伸縮体
12 第1係合手段
13 第2係合手段
14 ピン
15 ピン
19 ベアリング
20 支持体
21 装着部
22 止め板
23 穴
24 突起
25 開口
26 装着部
27 ピン
28 棒状体
C winding core 1 winding collar 2 central drive shaft 3 rotational force transmission means 4 collar body 5 bottom inclined groove 6 rolling element 7 space 8 retainer 9 retainer urging mechanism 10 receiving groove 11 telescopic body 12 first engagement means 13 first 2 engaging means 14 pin 15 pin 19 bearing 20 support
21 Mounting part 22 Stop plate 23 Hole 24 Protrusion 25 Opening 26 Mounting part 27 Pin 28 Rod-shaped body

Claims (4)

複数の帯状シートを巻取るための個々の中空の巻芯を貫通して支持する巻軸を構成するために、中心駆動軸に多数個装着される環状の巻取カラーであって、かつ前記中心駆動軸に同心に回転自在に装着され、前記中心駆動軸から回転力伝達手段を介して回転力を受けるカラー本体と、前記カラー本体の外周面に円周方向に間隔をとって設けた、底面が夫々前記中心駆動軸の回転方向沿いに次第に低くなるように形成してある複数の底面傾斜溝と、前記底面傾斜溝に配置した転動体と、前記転動体を前記底面傾斜溝から脱落しないよう収容する空所を持つ、前記カラー本体に回転自在に装着した環状のリテーナとを備え、前記カラー本体に被さっている前記巻芯が、前記カラー本体に対して前記底面傾斜溝が浅くなる方向に回転することにより、前記転動体が前記底面傾斜溝の浅い部分に移動すると共に該底面傾斜溝の底面により押上げられ、この転動体が前記巻芯の内周面を押圧することによって、前記巻芯を前記カラー本体に固く保持することができる巻取カラーにおいて、前記カラー本体の外周面の、前記リテーナで覆われる部分に、前記複数の底面傾斜溝の列に沿うように形成した収容溝と、前記収容溝に収容した、該収容溝の伸長方向に弾力的に伸縮可能な伸縮体と、前記カラー本体に設けた、前記伸縮体の一端に係合する第1係合手段と、前記リテーナに設けた、前記伸縮体の他の一端に係合する第2係合手段とからなり、前記カラー本体に巻芯が被さっていないとき前記転動体が前記底面傾斜溝の深い部分に戻るように前記リテーナを前記カラー本体に対して前記底面傾斜溝が深くなる方向へ付勢するリテーナ付勢機構を備えることを特徴とする巻取カラー。 A plurality of annular winding collars mounted on a central drive shaft for constituting a winding shaft that penetrates and supports individual hollow cores for winding a plurality of belt-like sheets, and the center A collar body that is rotatably mounted concentrically on the drive shaft and receives a rotational force from the central drive shaft via a rotational force transmission means , and a bottom provided on the outer peripheral surface of the color body with a circumferential interval A plurality of bottom inclined grooves formed such that the surfaces gradually become lower along the rotation direction of the central drive shaft, rolling elements disposed in the bottom inclined grooves, and the rolling elements do not fall off the bottom inclined grooves. having a cavity for housing as said and an annular retainer rotatably mounted on the collar body, the core that are overlying the collar body, the direction in which the bottom surface inclined groove is shallower with respect to said collar body By rotating to The rolling element moves to a shallow portion of the bottom inclined groove and is pushed up by the bottom surface of the bottom inclined groove, and the rolling element presses the inner peripheral surface of the winding core, whereby the winding core is moved to the color main body. In the winding collar that can be held firmly, a receiving groove formed on a portion of the outer peripheral surface of the collar body that is covered with the retainer so as to follow the row of the plurality of bottom inclined grooves, and the receiving groove The accommodated elastic body that can be elastically expanded and contracted in the extending direction of the accommodating groove, the first engagement means that engages with one end of the elastic body provided on the collar body, and the retainer provided on the retainer, And a second engaging means that engages with the other end of the elastic body, and the retainer is attached to the collar so that the rolling element returns to a deep portion of the bottom inclined groove when the core is not covered with the collar body. Said bottom against the body Winding collar, characterized in that it comprises a retainer biasing mechanism for biasing a direction oblique groove becomes deeper. 前記伸縮体が圧縮コイルバネである、請求項1に記載の巻取カラー。   The winding collar according to claim 1, wherein the elastic body is a compression coil spring. 前記複数の底面傾斜溝のうちの少なくとも一つの底面傾斜溝の中に、前記転動体の移動方向沿いに伸長した支持体を前記底面傾斜溝の深さ方向に弾力的に変位可能に設け、前記底面傾斜溝の深い部分に移動した転動体を前記巻芯の内周面に押付け可能に前記支持体によって下から支えたことを特徴とする請求項1に記載の巻取カラー。   In at least one bottom inclined groove among the plurality of bottom inclined grooves, a support extended along the moving direction of the rolling element is provided so as to be elastically displaceable in the depth direction of the bottom inclined groove, The winding collar according to claim 1, wherein the rolling element moved to a deep portion of the bottom inclined groove is supported from below by the support body so as to be able to be pressed against the inner peripheral surface of the core. 前記収容溝内に、該収容溝の伸長方向に拘束して収容した、該収容溝の深さ方向に自由端が変位可能な片持ち梁状の止め板と、前記止め板の自由端付近に形成した穴又は切欠きと、前記転動体が底面傾斜溝の深い部分の所定位置にあるとき前記穴又は切り欠きに嵌り得る、前記リテーナの内周面に設けた突起と、 前記リテーナの外周面の、止め板に対応する箇所に形成した開口とを備える 請求項1又は請求項3に記載の巻取カラー。   A cantilever-shaped stop plate whose free end is displaceable in the depth direction of the storage groove, which is constrained in the storage groove in the extending direction of the storage groove, and in the vicinity of the free end of the stop plate A formed hole or notch, a protrusion provided on the inner peripheral surface of the retainer that can fit into the hole or notch when the rolling element is in a predetermined position of a deep portion of the bottom inclined groove, and an outer peripheral surface of the retainer The winding collar according to claim 1, further comprising an opening formed at a location corresponding to the stop plate.
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