JP4418918B2 - Gripping device - Google Patents

Gripping device Download PDF

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JP4418918B2
JP4418918B2 JP2005058374A JP2005058374A JP4418918B2 JP 4418918 B2 JP4418918 B2 JP 4418918B2 JP 2005058374 A JP2005058374 A JP 2005058374A JP 2005058374 A JP2005058374 A JP 2005058374A JP 4418918 B2 JP4418918 B2 JP 4418918B2
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bottle
finger member
gripping
inner cylinder
gripping device
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JP2006239806A (en
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知行 東
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Ｎｋｅ株式会社
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Description

本発明は、ボトルの把持装置に関する。   The present invention relates to a bottle gripping device.

図６は、従来のボトルの把持装置の一例を示している。図６に示すように、従来のボトルの把持装置１０１は、縦横に複数個設けられており、複数本のボトルＢを一度に把持して移動させる移動装置に装着されて用いられる。そのため、各把持装置１０１の幅を小さくしたいという需要がある。
この把持装置１０１は、図６に示す所定の把持位置ＰＣにおいて縦横に整列された複数本のボトルＢの位置に各々対応して、搬送装置１００に複数台取り付けられている。搬送装置１００とは別の搬送手段によりボトルＢが搬送されてくる間、各把持装置１は、把持位置ＰＣの上方の待機位置で待機している。縦横に整列されたボトルＢが把持位置ＰＣに搬送されると、待機位置から搬送装置１００が下降することで、複数の把持装置１が下降される。
一方、近年、ボトルＢの先端部以外の外側に、樹脂コーティング等のコーティングを施すことが行われている。かかるコーティングを施すために、ボトルＢの内側にゴムや合成樹脂性などの保持棒を挿入することにより、ボトルＢの内側を保持する保持具が提案されている。（特許文献１）。
特開昭４８−８７９８７号公報 （図３、図４） FIG. 6 shows an example of a conventional bottle gripping device. As shown in FIG. 6, a plurality of conventional bottle gripping devices 101 are provided vertically and horizontally, and are used by being mounted on a moving device that grips and moves a plurality of bottles B at a time. Therefore, there is a demand for reducing the width of each gripping device 101.
A plurality of gripping devices 101 are attached to the transport device 100 in correspondence with the positions of a plurality of bottles B aligned vertically and horizontally at a predetermined gripping position PC shown in FIG. While the bottle B is transported by a transport means different from the transport device 100, each gripping device 1 stands by at a standby position above the gripping position PC. When the bottles B aligned vertically and horizontally are transported to the gripping position PC, the transport device 100 is lowered from the standby position, whereby the plurality of gripping devices 1 are lowered.
On the other hand, in recent years, coating such as resin coating has been performed on the outside of the bottle B other than the tip. In order to apply such a coating, a holder for holding the inside of the bottle B by inserting a holding rod made of rubber or synthetic resin into the inside of the bottle B has been proposed. (Patent Document 1).
JP-A-48-87987 (FIGS. 3 and 4)

しかし、特許文献１では、該保持具に用いたゴムや合成樹脂などが劣化し、ボトルＢ内に付着するおそれがある。   However, in Patent Document 1, there is a possibility that the rubber or synthetic resin used for the holder deteriorates and adheres to the bottle B.

したがって、本発明の目的は、ボトルの先端部を保持することができ、かつ、コンパクトなボトルの把持装置を提供することである。   Therefore, an object of the present invention is to provide a compact bottle gripping device that can hold the tip of the bottle.

上記目的を達成するために、本発明の把持装置は、ボトルの先端部に形成されたオネジ部を把持するボトルの把持装置であって、前記ボトルの先端部と同軸上に設けられる中心軸と、前記中心軸に取り付けられた筒状の内筒と、前記内筒の外周部分に取り付けられ前記オネジ部を把持する空間を形成すると共に開閉自在な３本以上の指部材と、前記指部材を開方向に付勢して前記空間内にボトルの先端部が侵入するのを許容した開状態を保持する開保持手段と、前記指部材を概ね全周にわたって取り囲むように形成され、かつ、前記指部材に対し移動することで、前記指部材を閉方向に付勢する外筒とを備え、前記各指部材の内周面には、各々、周方向に互いに分割され前記オネジ部に嵌り込む分割メネジが形成され、前記内筒が前記中心軸の軸方向の双方向に移動自在に取り付けられていることで、前記指部材が閉方向に閉じる際に前記指部材が前記軸方向に移動して前記分割メネジが前記オネジ部に嵌り込むのを可能としたことを特徴とする。
本発明によれば、ボトルの回転角にかかわらず、つまり、ボトルのオネジ部に対し分割メネジがズレていても、オネジ部をつかむことができる。また、ゴムや合成樹脂をボトルの口部内に挿入する必要がないので、異物がボトル内に付着するおそれがない。 In order to achieve the above object, a gripping device of the present invention is a bottle gripping device for gripping a male screw portion formed at the tip of a bottle, and a central axis provided coaxially with the tip of the bottle. A cylindrical inner cylinder attached to the central shaft, three or more finger members which are attached to the outer peripheral portion of the inner cylinder and which form a space for gripping the male screw part and which can be opened and closed, and the finger members An opening holding means for biasing in the opening direction to hold an open state in which the front end portion of the bottle is allowed to enter the space, and the finger member is formed so as to surround the entire circumference, and the finger An outer cylinder that urges the finger member in the closing direction by moving with respect to the member, and is divided into inner circumferential surfaces of the finger members that are respectively divided in the circumferential direction and fitted into the male screw portion A female screw is formed, and the inner cylinder is the central axis Attached so as to be movable in both directions in the axial direction, when the finger member closes in the closing direction, the finger member can move in the axial direction and the split female screw can be fitted into the male screw portion. It is characterized by that.
According to the present invention, the male screw portion can be grasped regardless of the rotation angle of the bottle, that is, even if the split female screw is displaced from the male screw portion of the bottle. Further, since there is no need to insert rubber or synthetic resin into the mouth of the bottle, there is no possibility that foreign matter will adhere to the bottle.

本発明においては、前記中心軸の外周には、前記内筒を軸方向の第１の方向に向って付勢する第１コイルスプリングと、前記内筒を軸方向の第２の方向に向って付勢する第２コイルスプリングとが設けられているのが好ましい。
かかる態様によれば、内筒の軸方向への移動がスムースになるので、分割メネジがボトルのオネジ部にスムースに嵌まり込むから、ボトルを確実に把持することができる。 In the present invention, on the outer periphery of the central shaft, a first coil spring that biases the inner cylinder in the first axial direction, and the inner cylinder in the second axial direction. A second coil spring for biasing is preferably provided.
According to this aspect, since the movement of the inner cylinder in the axial direction is smooth, the split female screw is smoothly fitted into the male screw portion of the bottle, so that the bottle can be reliably gripped.

前記分割メネジが前記オネジ部に嵌まり込んだ把持状態においては、前記中心軸の先端面に前記ボトルの先端面が当接している。
このように、ボトルと中心軸の先端面同士が当接していると、ボトルのぐらつきを防止できる。 In the gripping state in which the divided female screw is fitted in the male screw portion, the front end surface of the bottle is in contact with the front end surface of the central axis.
Thus, if the bottle and the tip surfaces of the central shaft are in contact with each other, the wobble of the bottle can be prevented.

実施例１：
以下、本発明の実施例１を図面に従って説明する。
本発明の把持装置１は、たとえば、図６に示すボトルＢを搬送するための搬送装置１００に取り付けられ、所定の把持位置ＰＣでボトルＢを把持し、前記搬送装置１００による移送後に、前記把持位置ＰＣとは別の所定の移送位置ＰＲでボトルＢを解放するものである。 Example 1:
Embodiment 1 of the present invention will be described below with reference to the drawings.
The gripping device 1 of the present invention is attached to, for example, the transport device 100 for transporting the bottle B shown in FIG. 6, grips the bottle B at a predetermined gripping position PC, and after the transfer by the transport device 100, the gripping device 1 The bottle B is released at a predetermined transfer position PR different from the position PC.

把持装置１：
図１は、非把持状態の持本把持装置１を示す正面断面図である。
図１に示すように、把持装置１は、網点で示すボトルＢの先端部ＢＳに形成されたオネジ部Ｂ１を、図４に示すように把持するための装置であり、指部材２、内筒３、外筒４、中心軸５および取付部６を備えている。 Gripping device 1:
FIG. 1 is a front sectional view showing the holding gripping device 1 in a non-gripping state.
As shown in FIG. 1, the gripping device 1 is a device for gripping the male screw portion B1 formed at the tip portion BS of the bottle B indicated by a halftone dot as shown in FIG. A cylinder 3, an outer cylinder 4, a central shaft 5 and an attachment portion 6 are provided.

図２（ａ）は下方から見た把持装置１の斜視図である。図１および図２（ａ）に示すように、外筒４は下部が内方に向って狭められた円筒形に形成されている。
図２（ｂ）は、外筒４を外した状態の把持装置１の斜視図である。前記取付部６は、図示しない取付部材を介して、本把持装置１を搬送装置１００（図６）に取り付けるための部材であり、略円柱形に形成されている。 FIG. 2A is a perspective view of the gripping device 1 as viewed from below. As shown in FIG. 1 and FIG. 2 (a), the outer cylinder 4 is formed in a cylindrical shape whose lower part is narrowed inward.
FIG. 2B is a perspective view of the gripping device 1 with the outer cylinder 4 removed. The attachment portion 6 is a member for attaching the gripping device 1 to the transport device 100 (FIG. 6) via an attachment member (not shown), and is formed in a substantially cylindrical shape.

中心軸５：
図１に示す前記取付部６の底部には、中心軸５が固定されている。中心軸５は略円柱形に形成されており、中心軸５の上部を取付部６の底部に螺合させることで、該取付部６に固定されている。中心軸５は、取付部６の径方向Ｒの概ね中央に固定されていると共に、ボトルＢの先端部ＢＳと同軸上に設けられている。前記中心軸５の先端面５０は、把持動作開始から把持動作中において、ボトルＢの先端面に当接した状態となっている。 Center axis 5:
A central shaft 5 is fixed to the bottom of the mounting portion 6 shown in FIG. The central shaft 5 is formed in a substantially cylindrical shape, and is fixed to the mounting portion 6 by screwing the upper portion of the central shaft 5 to the bottom portion of the mounting portion 6. The central shaft 5 is fixed substantially at the center in the radial direction R of the attachment portion 6 and is provided coaxially with the tip portion BS of the bottle B. The distal end surface 50 of the central shaft 5 is in contact with the distal end surface of the bottle B during the gripping operation from the start of the gripping operation.

内筒３：
前記中心軸５の側面の周囲には、内筒３が設けられている。内筒３は、中心軸５に対して該中心軸５の軸方向（上下方向）Ｚに摺動自在に設けられている。内筒３の内部には、バネ座３１が中心軸５側に突出して形成されている。 Inner cylinder 3:
An inner cylinder 3 is provided around the side surface of the central shaft 5. The inner cylinder 3 is slidable in the axial direction (vertical direction) Z of the central shaft 5 with respect to the central shaft 5. A spring seat 31 is formed inside the inner cylinder 3 so as to protrude toward the central shaft 5.

前記バネ座３１と中心軸５の下端部との間には、第１コイルスプリングＳ１が圧縮状態で挿入されており、内筒３は該第１スプリングＳ１により第２方向（上方向）Ｚ２に付勢されている。一方、バネ座３１と取付部６の下端部との間には、第２コイルスプリングＳ２が圧縮状態で挿入されており、内筒３は、該第２スプリングＳ２により第１方向（下方向）Ｚ１に付勢されている。
こうして、内筒３は第１および第２スプリングＳ１，Ｓ２によって、中心軸５の軸方向Ｚの双方向に移動自在に取り付けられている。 A first coil spring S1 is inserted in a compressed state between the spring seat 31 and the lower end portion of the central shaft 5, and the inner cylinder 3 is moved in the second direction (upward direction) Z2 by the first spring S1. It is energized. On the other hand, the second coil spring S2 is inserted in a compressed state between the spring seat 31 and the lower end portion of the attachment portion 6, and the inner cylinder 3 is moved in the first direction (downward) by the second spring S2. It is biased to Z1.
Thus, the inner cylinder 3 is attached so as to be movable in both directions in the axial direction Z of the central shaft 5 by the first and second springs S1 and S2.

指部材２：
図２（ｂ）に示すように、内筒３の外周部分には、前記ボトルＢの先端部ＢＳを把持するための４本の指部材２が設けられている。各指部材２の内周面には、ボトルＢのオネジ部Ｂ１に嵌り込む分割メネジ２１が形成されている。 Finger member 2:
As shown in FIG. 2 (b), four finger members 2 for gripping the tip portion BS of the bottle B are provided on the outer peripheral portion of the inner cylinder 3. On the inner peripheral surface of each finger member 2, a split female screw 21 that fits into the male screw portion B1 of the bottle B is formed.

図３（ａ）は把持装置１を横倒の状態で描いた斜視図であり、図３（ｂ）は外筒４および指部材２の一部を取り外した状態の斜視図である。
図３（ｂ）に示すように、内筒３の外周部には、各指部材２の取付部２６が嵌合する切欠凹部３０が形成されている。指部材２の取付部２６および内筒３の外周には、取付孔２４，３３がそれぞれ穿孔されており、図２（ｂ）の破線に示すように、該取付孔２４，３３には、支持ピン２２が挿入されている。したがって、各指部材２は支持ピン２２を中心に回動自在に取り付けられている。 FIG. 3A is a perspective view of the gripping device 1 drawn on its side, and FIG. 3B is a perspective view of the outer cylinder 4 and part of the finger member 2 removed.
As shown in FIG. 3 (b), a notch recess 30 into which the attachment portion 26 of each finger member 2 is fitted is formed on the outer peripheral portion of the inner cylinder 3. Mounting holes 24 and 33 are drilled in the outer periphery of the mounting portion 26 of the finger member 2 and the inner cylinder 3, respectively. As shown by the broken lines in FIG. 2B, the mounting holes 24 and 33 support the mounting holes 24 and 33, respectively. A pin 22 is inserted. Accordingly, each finger member 2 is attached to be rotatable about the support pin 22.

開保持手段：
図１に示すように、各指部材２において、前記分割メネジ２１の形成された端部とは反対側の端部（上端部）には、リング２３が掛け渡されている。前記リング２３は、たとえば、コイルスプリングなどの弾性部材で形成されており、リング２３の収縮力により、各指部材２は、支持ピン２２を中心にそれぞれ開方向、すなわち、指部材２の分割メネジ２１が形成された下部がボトルの先端部ＢＳの外周から遠ざかる方向に付勢されている。したがって、リング２３は、指部材２を開状態（非把持状態）に保持する開保持手段を構成している。 Open holding means:
As shown in FIG. 1, in each finger member 2, a ring 23 is stretched over an end portion (upper end portion) opposite to the end portion where the divided female screw 21 is formed. The ring 23 is formed of, for example, an elastic member such as a coil spring. Due to the contraction force of the ring 23, each finger member 2 opens in the opening direction around the support pin 22, that is, the divided female screw of the finger member 2. The lower part in which 21 is formed is urged away from the outer periphery of the bottle front end BS. Therefore, the ring 23 constitutes an open holding means for holding the finger member 2 in an open state (non-gripping state).

外筒４：
前記外筒４は、指部材２を概ね全周に渡って取り囲むように形成されている。外筒４は、円柱形の取付部６の外周に沿って軸方向Ｚに摺動自在に設けられている。図２（ｂ）に示すように、取付部６には長孔６１が開口されており、外筒４は該長孔６１を貫通するボルト６０により、取付部６に取り付けられている。 Outer cylinder 4:
The outer cylinder 4 is formed so as to surround the finger member 2 over the entire circumference. The outer cylinder 4 is provided so as to be slidable in the axial direction Z along the outer periphery of the cylindrical mounting portion 6. As shown in FIG. 2B, a long hole 61 is opened in the attachment portion 6, and the outer cylinder 4 is attached to the attachment portion 6 by a bolt 60 that passes through the long hole 61.

図１に示すように、指部材２の下端部の外側面には、第１方向Ｚ１に行くに従い窄まるよう（末窄まり）に形成されたテーパー部２５が形成されている。一方、外筒４の下端部の内側面には、指部材２の前記テーパー部２５に概ね沿うように形成された傾斜部４５が形成されている。そのため、外筒４が、図１から図４のように、外筒４が指部材２に対して相対的に上昇し、指部材２のテーパー部２５が外筒４の傾斜部４５に沿って中心に向かって回転する（支持ピン２２を中心に回転する）ことにより、指部材２の下部同士が互いに近づく閉方向に移動される。   As shown in FIG. 1, a tapered portion 25 is formed on the outer surface of the lower end portion of the finger member 2 so as to be narrowed toward the first direction Z <b> 1 (end-squeezing). On the other hand, an inclined portion 45 is formed on the inner side surface of the lower end portion of the outer cylinder 4 so as to be substantially along the tapered portion 25 of the finger member 2. Therefore, as shown in FIGS. 1 to 4, the outer cylinder 4 rises relatively with respect to the finger member 2, and the tapered portion 25 of the finger member 2 extends along the inclined portion 45 of the outer cylinder 4. By rotating toward the center (rotating around the support pin 22), the lower portions of the finger members 2 are moved in a closing direction in which the finger members 2 approach each other.

ここで、図２（ａ）は、外筒４が第２方向Ｚ２に移動した閉状態を示す。図２（ａ）に示すように、指部材２の分割メネジ２１は、かかる閉状態において、各分割メネジ２１が螺旋状に互いに概ね連なることにより、メネジを構成するように形成されている。当該メネジは、ボトルＢのオネジ部Ｂ１に合致するように形成される。したがって、前記閉状態では、指部材２の分割メネジ２１が、ボトルＢのオネジ部Ｂ１に嵌まり込み、各指部材２によりボトルＢの先端部ＢＳをしっかりと把持することが可能である。   Here, Fig.2 (a) shows the closed state which the outer cylinder 4 moved to the 2nd direction Z2. As shown in FIG. 2 (a), the divided female screw 21 of the finger member 2 is formed so as to constitute a female screw when the divided female screws 21 are substantially connected to each other spirally in such a closed state. The female screw is formed to match the male screw part B1 of the bottle B. Therefore, in the closed state, the split female screw 21 of the finger member 2 is fitted into the male screw portion B1 of the bottle B, and the tip portion BS of the bottle B can be firmly held by each finger member 2.

把持方法：
図５は、指部材２の把持方法を示す指部材２付近の部分端面図である。
図５（ａ）に示すように、指部材２の分割メネジ２１とボトルＢのオネジ部Ｂ１とが合致する位置にある場合は、前記指部材２が支持ピンを中心に回転してオネジ部Ｂ１に嵌まり込み、指部材２によりボトルＢが把持される。
一方、ボトルＢの周方向Ｃ（図２（ｂ））の回転角によっては、指部材２の把持動作の際に、図５（ｂ），（ｃ）の実線で示すように、指部材２の分割メネジ２１と、ボトルＢのオネジ部Ｂ１とが噛み合わない場合が生じる。かかる場合には、分割メネジ２１がオネジ部Ｂ１に嵌まる位置まで、指部材２が第１または第２方向Ｚ１，Ｚ２に移動される。 Gripping method:
FIG. 5 is a partial end view of the vicinity of the finger member 2 showing a method of gripping the finger member 2.
As shown in FIG. 5 (a), when the split female screw 21 of the finger member 2 and the male screw portion B1 of the bottle B are in a position where they match, the finger member 2 rotates around the support pin to rotate the male screw portion B1. The bottle B is gripped by the finger member 2.
On the other hand, depending on the rotation angle of the bottle B in the circumferential direction C (FIG. 2 (b)), the finger member 2 can be used as shown by the solid lines in FIGS. The split female screw 21 and the male screw part B1 of the bottle B may not mesh with each other. In such a case, the finger member 2 is moved in the first or second direction Z1, Z2 to a position where the split female screw 21 fits into the male screw portion B1.

すなわち、図５（ｂ）のような場合には、指部材２が支持ピン２２を中心に閉方向に回動する際に、第２および第１スプリングＳ２，Ｓ１（図１）が伸縮し、矢印Ｚ１で示すように、指部材２がボトルＢに対して下降しながら閉方向に回転し、ボトルＢのオネジ部Ｂ１に指部材２の分割メネジ２１が嵌り込む。
一方、図５（ｃ）のような場合には、指部材２が支持ピン２２を中心に閉方向に回動する際に、第１および第２スプリングＳ１，Ｓ２（図１）が伸縮し、矢印Ｚ２で示すように、指部材２がボトルＢに対して上昇しながら閉方向に回転し、ボトルＢのオネジ部Ｂ１に指部材２の分割メネジ２１が嵌り込む。 That is, in the case of FIG. 5B, when the finger member 2 rotates in the closing direction around the support pin 22, the second and first springs S2 and S1 (FIG. 1) expand and contract, As indicated by the arrow Z1, the finger member 2 rotates in the closing direction while descending with respect to the bottle B, and the split female screw 21 of the finger member 2 is fitted into the male screw portion B1 of the bottle B.
On the other hand, in the case of FIG. 5C, when the finger member 2 rotates in the closing direction around the support pin 22, the first and second springs S1 and S2 (FIG. 1) expand and contract, As indicated by an arrow Z2, the finger member 2 rotates in the closing direction while being raised with respect to the bottle B, and the split female screw 21 of the finger member 2 is fitted into the male screw portion B1 of the bottle B.

このように、ボトルＢの回転角に拘わらず、ボトルＢのオネジ部Ｂ１に指部材２の分割メネジ２１が嵌まり込むことが可能である。   Thus, regardless of the rotation angle of the bottle B, the split female screw 21 of the finger member 2 can be fitted into the male screw portion B1 of the bottle B.

ボトルＢの搬送動作：
図１の把持装置１は開状態を保ったまま、中心軸５の先端面５０がボトルの先端面に当接するように下降する。
この下降の際、各把持装置１は、図１に示すように、指部材２が開状態に保持されているので、ボトルＢの先端部ＢＳが指部材２内に嵌挿される。 Transport operation for bottle B:
The holding device 1 of FIG. 1 is lowered so that the front end surface 50 of the central shaft 5 is in contact with the front end surface of the bottle while keeping the open state.
At the time of the lowering, as shown in FIG. 1, each gripping device 1 has the finger member 2 held in an open state, so that the front end BS of the bottle B is inserted into the finger member 2.

各ボトルＢが指部材２内に嵌挿されると、外筒４のみが図示しない引上具によって図４の第２方向Ｚ２に移動される。外筒４の移動により、各指部材２が支持ピン２２のまわりに回転し、各指部材２が閉方向に移動される。かかる回転移動（揺動）により、指部材２の分割メネジ２１がボトルＢのオネジ部Ｂ１に嵌まり込み、把持装置１がボトルＢを把持する。   When each bottle B is inserted into the finger member 2, only the outer cylinder 4 is moved in the second direction Z2 of FIG. 4 by a lifting tool (not shown). As the outer cylinder 4 moves, each finger member 2 rotates around the support pin 22, and each finger member 2 is moved in the closing direction. By such rotational movement (swing), the split female screw 21 of the finger member 2 is fitted into the male screw portion B1 of the bottle B, and the gripping device 1 grips the bottle B.

ここで、前述したように、前記分割メネジ２１は、閉方向に回転されることにより、ボトルＢのオネジ部Ｂ１に対応するメネジが嵌まり込む。したがって、ボトルＢのオネジ部Ｂ１に指部材２の分割メネジ２１がしっかりと嵌合し、指部材２にボトルＢの先端部ＢＳが把持されるので、ボトルＢのぐらつきが防止される。   Here, as described above, the divided female screw 21 is rotated in the closing direction so that the female screw corresponding to the male screw portion B1 of the bottle B is fitted. Therefore, the split female screw 21 of the finger member 2 is securely fitted to the male screw portion B1 of the bottle B, and the tip portion BS of the bottle B is gripped by the finger member 2, so that the bottle B is prevented from wobbling.

なお、図５（ｂ），（ｃ）に示すように、指部材２の分割メネジ２１がボトルＢのオネジ部Ｂ１に嵌まらない位置にある場合には、前述したように、分割メネジ２１にオネジ部Ｂ１とが嵌まり合う位置まで、指部材２が第１または第２方向Ｚ１，Ｚ２に移動しながら、閉方向に回動する。   As shown in FIGS. 5B and 5C, when the split female screw 21 of the finger member 2 is in a position where it does not fit into the male screw portion B1 of the bottle B, as described above, the split female screw 21 is used. The finger member 2 rotates in the closing direction while moving in the first or second direction Z1, Z2 to the position where the male screw portion B1 is fitted.

前記把持装置１によりボトルＢが把持されると、把持装置１は図示しない搬送装置により上昇される。その後、搬送装置によりボトルＢが所定の移送位置まで移送される。当該移送位置において、図４の外筒４が取付部６に対して相対的に第１方向Ｚ１に移動され、図１のリング２３の収縮力により、各指部材２が開方向に回動してボトルＢが解放され、ボトルＢの移載が完了する。
ボトルＢの移載が完了すると、搬送装置１００は移動し、前記待機位置に復帰して待機する。 When the bottle B is gripped by the gripping device 1, the gripping device 1 is raised by a transport device (not shown). Thereafter, the bottle B is transferred to a predetermined transfer position by the transfer device. At the transfer position, the outer cylinder 4 in FIG. 4 is moved relative to the mounting portion 6 in the first direction Z1, and each finger member 2 is rotated in the opening direction by the contraction force of the ring 23 in FIG. Then, the bottle B is released and the transfer of the bottle B is completed.
When the transfer of the bottle B is completed, the transfer device 100 moves, returns to the standby position, and waits.

以上説明したように、本把持装置１は、ボトルＢの先端部ＢＳのみをしっかりと把持することができる。そのため、ボトルＢの外側に樹脂コーティング等を容易に施すことができる。
また、把持装置１は、外筒４の移動（上下動）のみでボトルＢを把持するので、各把持装置１の幅がコンパクトになり、複数台の把持装置１を取り付けた場合でも、搬送装置１００全体を小型化することができる。 As described above, the gripping device 1 can firmly grip only the tip portion BS of the bottle B. Therefore, a resin coating or the like can be easily applied to the outside of the bottle B.
In addition, since the gripping device 1 grips the bottle B only by the movement (vertical movement) of the outer cylinder 4, the width of each gripping device 1 becomes compact, and even when a plurality of gripping devices 1 are attached, the transport device The entire 100 can be reduced in size.

なお、前記実施例では、外筒４を第２方向Ｚ２に上昇させることで指部材２を閉状態に移行することとしたが、外筒４を第１方向Ｚ１に下降させることにより指部材２を閉状態に設定するようにしてもよいし、外筒４を回転させて指部材２を閉じさせてもよい。
また、指部材２を４個設けたが、指部材２は３個以上であればよい。
さらに、第２スプリングＳ２は必ずしも設ける必要はなく、一方のスプリングのみであってもよい。 In the above embodiment, the finger member 2 is shifted to the closed state by raising the outer cylinder 4 in the second direction Z2. However, the finger member 2 is lowered by lowering the outer cylinder 4 in the first direction Z1. May be set in a closed state, or the outer cylinder 4 may be rotated to close the finger member 2.
Further, although four finger members 2 are provided, the number of finger members 2 may be three or more.
Furthermore, the second spring S2 is not necessarily provided, and only one spring may be provided.

本発明は、酒瓶やビール瓶、ペットボトルなどのボトルの先端部を把持するのに適した把持装置に適用することができる。   The present invention can be applied to a gripping device suitable for gripping the tip of a bottle such as a liquor bottle, a beer bottle, or a plastic bottle.

本発明の一実施例にかかる把持装置の部分断面図である。It is a fragmentary sectional view of the holding device concerning one example of the present invention. 同装置の斜視図である。It is a perspective view of the same apparatus. 同装置の斜視図である。It is a perspective view of the same apparatus. 把持状態の把持装置を示す部分断面図である。It is a fragmentary sectional view which shows the holding | gripping apparatus of a holding state. 指部材の動作を示す部分端面図である。It is a fragmentary end view which shows operation | movement of a finger member. 従来の把持装置の動作を示す概略正面図である。It is a schematic front view which shows operation | movement of the conventional holding | gripping apparatus.

符号の説明Explanation of symbols

１：把持装置
２：指部材
３：内筒
４：外筒
５：中心軸
５０：先端面
２１：分割メネジ
２３：リング（開保持手段）
Ｂ：ボトル
Ｂ１：オネジ部
ＢＳ：先端部
Ｓ１：第１コイルスプリング
Ｓ２：第２コイルスプリング
Ｚ：軸方向 1: Gripping device 2: Finger member 3: Inner cylinder 4: Outer cylinder 5: Center axis 50: Tip surface 21: Divided female screw 23: Ring (open holding means)
B: Bottle B1: Male thread part BS: Tip part S1: First coil spring S2: Second coil spring Z: Axial direction

Claims (4)

ボトルの先端部に形成されたオネジ部を把持するボトルの把持装置であって、
前記ボトルの先端部と同軸上に設けられる中心軸と、
前記中心軸に取り付けられた筒状の内筒と、
前記内筒の外周部分に取り付けられ前記オネジ部を把持する空間を形成すると共に開閉自在な３本以上の指部材と、
前記指部材を開方向に付勢して前記空間内にボトルの先端部が侵入するのを許容した開状態を保持する開保持手段と、
前記指部材を概ね全周にわたって取り囲むように形成され、かつ、前記指部材に対し移動することで、前記指部材を閉方向に付勢する外筒とを備え、
前記各指部材の内周面には、各々、周方向に互いに分割され前記オネジ部に嵌り込む分割メネジが形成され、
前記内筒が前記中心軸の軸方向の双方向に移動自在に取り付けられていることで、前記指部材が閉方向に閉じる際に前記指部材が前記軸方向に移動して前記分割メネジが前記オネジ部に嵌り込むのを可能としたことを特徴とする把持装置。 A bottle gripping device for gripping a male screw formed at the tip of a bottle,
A central axis provided coaxially with the tip of the bottle;
A cylindrical inner cylinder attached to the central axis;
Three or more finger members that are attached to the outer peripheral portion of the inner cylinder to form a space for gripping the male screw portion and that can be opened and closed;
An open holding means for urging the finger member in the opening direction to hold the open state allowing the front end of the bottle to enter the space;
An outer cylinder that is formed so as to surround the finger member substantially over the entire circumference and that urges the finger member in a closing direction by moving with respect to the finger member;
On the inner peripheral surface of each finger member, a split female screw that is split into the male screw part and is divided from each other in the circumferential direction is formed.
Since the inner cylinder is attached so as to be movable in both directions in the axial direction of the central axis, the finger member moves in the axial direction when the finger member closes in the closing direction, and the divided female screw is moved in the axial direction. A gripping device characterized in that it can be fitted into a male screw part. 請求項１において、前記中心軸の外周にコイルスプリングが設けられ、前記コイルスプリングを介して前記内筒が前記中心軸の軸方向の双方向に移動自在に取り付けられている把持装置。   The gripping device according to claim 1, wherein a coil spring is provided on an outer periphery of the central shaft, and the inner cylinder is attached to be movable in both directions in the axial direction of the central shaft via the coil spring. 請求項１において、前記中心軸の外周には、前記内筒を軸方向の第１の方向に向って付勢する第１コイルスプリングと、前記内筒を軸方向の第２の方向に向って付勢する第２コイルスプリングとが設けられている把持装置。   2. The first coil spring for urging the inner cylinder in the first axial direction on the outer periphery of the central shaft, and the inner cylinder in the second axial direction. A gripping device provided with a second coil spring for biasing. 請求項２もしくは３において、前記分割メネジが前記オネジ部に嵌まり込んだ把持状態においては、前記中心軸の先端面に前記ボトルの先端面が当接している把持装置。   The gripping device according to claim 2 or 3, wherein in a gripping state in which the divided female screw is fitted in the male screw portion, the tip surface of the bottle is in contact with the tip surface of the central axis.
JP2005058374A 2005-03-03 2005-03-03 Gripping device Active JP4418918B2 (en)

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