Patent Publication Number: US-2009218003-A1

Title: Method and Device for Manufacturing Content-Filled Bottle

Description:
TECHNICAL FIELD 
     The present invention relates to a method and device for manufacturing a content-filled bottle, and more specifically, to a method for manufacturing a content-filled bottle, in which a liquid substance is filled into the interior of a synthetic resin bottle having an inversion part disposed on a bottom part thereof, and which is capable of causing the inversion part to be inverted between a state in which the inversion part is recessed inwardly along an axial direction of a body part, and a state in which the inversion part projects outwardly from the body part, along with a device for carrying out such a method. 
     As a content-filled bottle, which accommodates a liquid substance such as a drink or the like therein, for example, a bottle (PET bottle) made by blow forming a polyethylene-telephthalate material has been known. In this type of bottle, for purposes of heat sterilization, the bottle is filled with a drink, which has been heated to a high temperature (e.g., 85° C.), whereupon cooling is performed after an opening of the bottle has been hermetically sealed by a cap. Thus, upon cooling, the interior of the bottle is placed in a reduced pressure state together with a reduction in the volume of the liquid drink. Also at this time, a body portion of the bottle becomes deformed by the reduced pressure inside the bottle, which tends to make the outer appearance of the bottle unfavorable. 
     Therefore, on such synthetic resin bottles that are intended to be filled with liquid contents at a high temperature, multiple formation of flexible panels on the body part, which evenly absorb the deformation accompanying the internal pressure reduction after filling, is carried out. However, in the case that such panels are provided, the shape of the bottle becomes complicated and the material cost for the bottle increases. 
     Consequently, it has been known to provide an inversion part capable of being inverted between concave and convex shapes on a bottom part of the bottle, wherein the heated liquid contents are filled in a state in which the inverted part projects outwardly from the bottle, and after the bottle opening is sealed by the cap, the inversion part in a state of projecting outwardly from the body part is recessed inwardly into the body part, when the pressure is reduced as a result of cooling. 
     In this type of bottle, prior to filling of the liquid contents therein, the inversion part on the bottom of the bottle is pressed out so as to project outwardly from the body part. Next, liquid contents that have been heated to a high temperature are filled into the interior of the bottle in a state in which the inversion part of the bottom part projects outwardly from the body part, and the opening of the bottle is sealed by a cap. Thereafter, when the liquid contents inside the bottle are cooled resulting in a reduced pressure state, the inversion part on the bottom of the bottle, which is in an outwardly projected state, is pressed up and recessed inwardly into the bottle. As a result, the reduced pressure state of the inside pressure is canceled out, whereby reduced pressure deformation of the container body part does not occur. In this manner, the inversion part, which is invertible between concave and convex states, is provided on the bottom of the bottle, wherein assuming the inversion part is made to become inverted during the manufacturing steps of the content-filled bottle, panels for evenly absorbing the aforementioned deformation do not need to be provided on the body part of the bottle, and therefore the degree of freedom in designing the bottle can be enhanced, together with enabling a reduction in material costs for the bottle. 
     However, in such a bottle which prevents reduced pressure deformation of the body part by concave/convex inversion of the bottom of the bottle, the inversion part on the bottom of the bottle into which contents have been filled beforehand must be made to project outwardly from the body portion, and thus the bottom part of the bottle becomes unstable and it is difficult to transport the bottle in a self-standing state. Therefore, after the inversion part on the bottom of the bottle has been made to project outwardly from the body part, a cylindrically shaped auxiliary tool having a ground portion on which the bottle bottom is stabilized is installed, whereby the projecting part on the bottom portion is accommodated within the auxiliary tool. Thus, by enabling the bottle to stand on its own through means of the auxiliary tool, transporting of the bottle in a stable manner is conceivable. 
     However, during the manufacturing steps for the content-filled bottle, a problem results in that, in addition to the fact that the process of concave/convex inversion of the bottle bottom portion must be carried out multiple times, in the case of installing the auxiliary tool as described above, a process for installing the auxiliary tool must also be provided, whereby the number of process steps increases and efficiency is deteriorated. Moreover, in particular, because the body and bottom parts in this type of synthetic resin bottle are thin-walled, the integrity thereof for maintaining the shape of the bottle is comparatively weak, and there is a concern that along with increasing the number of process steps, when an excessive load is applied to the bottle, inappropriate deformation and buckling may occur, whereby the product quality of the bottle becomes degraded. 
     DISCLOSURE OF THE INVENTION 
     The present invention has been devised taking into account the aforementioned problems and has the object of providing a method and device by which a content-filled bottle can be manufactured with good efficiency and high product quality, wherein, during manufacturing of the content-filled bottle in which reduced pressure deformation of the body portion is prevented through concave/convex inversion of a bottom part thereof, inappropriate deformation or buckling of the content-filled bottle is prevented. 
     For accomplishing the concerned objects, the present invention provides a method for manufacturing a content-filled bottle, in which liquid contents are hermetically sealed in a synthetic resin bottle comprising a hollowed body part, an opening provided on an upper end of the body part and capable of being fitted with a cap thereon, a bottom part that closes a bottom end of the body part, and an inversion part provided within a portion of the bottom part, which is capable of undergoing inversion between a state of being recessed inwardly into the body part along an axial direction of the body part, and a state of projecting outwardly from the body part, the method being characterized by: 
     an auxiliary tool mounting step by which a cylindrical auxiliary tool, formed with a shape such that a portion thereof capable of being mounted on the bottom part of the bottle and corresponding to the inversion part is opened, and which is capable of accommodating the inversion part in the state of projecting outwardly from the body part, is mounted onto a bottom part outer periphery of a non-content-filled empty bottle under a condition in which the inversion part is recessed inwardly into the body part; 
     a bottom part projecting step in which the inversion part on the bottom part of the empty bottle, on which the auxiliary tool has been mounted by the auxiliary tool mounting step, is made to project outwardly from the body part; 
     a content filling step in which liquid contents are filled into the interior of the bottle having the inversion part thereof projecting outwardly from the body part by means of the bottom part projecting step; 
     a sealing step in which a cap is fitted onto the opening of the filled bottle, the interior of which has been filled with liquid contents by the content filling step, for sealing the bottle; 
     a bottom part recessing step by which the inversion part that projects outwardly from the filled bottle in which the cap has been fitted by the sealing step is recessed inwardly into the body part; and 
     an auxiliary tool separating step in which the auxiliary tool is separated from the filled bottle in which the inversion part has become recessed inwardly into the body part by the bottom part recessing step, 
     wherein the auxiliary tool mounting step further comprises an empty bottle retaining step for retaining the empty bottle by gripping the opening from an outer side thereof along an upper surface of a flange that is formed on an outer periphery of the opening of the empty bottle, and an empty bottle loading step in which an empty bottle support table that raisably supports the empty bottle onto which the auxiliary tool has been mounted is raised, whereby the auxiliary tool is installed onto the bottom part of the empty bottle that is retained by the retaining step, and wherein the empty bottle is loaded onto the empty bottle support table through the auxiliary tool, and 
     wherein the bottom part projecting step further comprises a bottom part downward pressing step in which a rod shaped pushdown member is lowered in an axial direction from the opening of the empty bottle, which has been loaded onto the empty bottle support table by the empty bottle loading step, and is inserted into the interior of the empty bottle, whereby the inversion part in an inwardly recessed state is pressed downwardly by an end of the pushdown member from the inside of the empty bottle so as to project outwardly from the body part, and a pushdown member retracting step in which the pushdown member is raised and retracted from the inside of the empty bottle after the inversion part has been inversely projected by the bottom part downward pressing step. 
     According to the method of the present invention, the opening is gripped on an upper surface of a flange (so-called support ring) in the empty bottle retaining step of the auxiliary tool mounting step. In addition, in the empty bottle loading step, installation of the auxiliary tool onto the bottom part of the bottle and loading of the bottle onto the top of the empty bottle support table are carried out by raising the empty bottle support table. Accordingly, at the same time that the auxiliary tool is installed, the empty bottle becomes positioned between the upper surface of the flange and the bottom part thereof is positioned above the empty bottle support table. 
     In addition, by maintaining the above state and by the bottom part downward pressing step of the bottom part projecting step, the rod shaped pushdown member is lowered from the opening of the empty bottle, thereby causing the inversion part to project outwardly. Subsequently, withdrawal of the pushdown member from the empty bottle is carried out by the pushdown member retracting step. 
     In this manner, according to the present invention, positioning is finalized at the same time that the auxiliary tool is installed. Accordingly, projecting of the inversion part can be linked with and carried out by the pushdown member, and lowering of efficiency accompanying installation of the auxiliary tool can be prevented. In addition, the structure of the apparatus is simplified and equipment costs can be decreased. Furthermore, because the bottom part projecting step can be performed while maintaining high positional accuracy by means of the auxiliary tool mounting step, the positioning at which the pushdown member is pressed down does not suffer from off placement or shifting. Accordingly, damage to the bottom part of the empty bottle can be reliably prevented and a content-filled bottle of high product quality can be manufactured. 
     Further, when the inversion part of the synthetic resin bottle comprises an inclined portion, which is capable of concave/convex inversion in a symmetrical shape inwardly and/or outwardly of the body part, and a bottom part central portion formed in a region surrounded by the inclined portion, in the bottom part downward pressing step of the bottom part projecting step, the inversion part is pressed downward by the end of the pushdown member along at least an inner peripheral edge of the inclined portion of the inversion part. 
     When the inversion part of the synthetic resin bottle is inverted, the boundary thereof with the bottom part central portion acts as a hinge. In such a case, by pressing down along the inner peripheral edge of the inclined portion which acts as a hinge, adverse effects are not imparted to the bottom part central portion and the inversion part can be inverted outwardly from the body part with a comparatively small pressing force. The load imposed on the bottom part of the bottle at the time of inversion can be alleviated, and inadvertent deformations can be reliably prevented while enabling the inversion part to be inverted securely. Accordingly, damage to the bottom part of the empty bottle can be reliably prevented and a content-filled bottle of high product quality can be manufactured with good efficiency. 
     Further, in the bottom part downward pressing step and in the pushdown member retracting step, raising and lowering of the pushdown member is driven through an arm that extends outwardly of the bottle along a vertical direction of the bottle, and which is connected to an upper end of the pushdown member. 
     Accordingly, a driving mechanism or the like for raising and lowering the pushdown member can be disposed outside of the bottle through the arm. Owing thereto, the driving mechanism or the like is not positioned directly above the opening, and falling of foreign substances (for example, machine oil or the like) from the driving mechanism and incursion thereof from the opening of the bottle can be reliably prevented. 
     Further, the bottom part recessing step of the present invention includes a filled bottle loading step by which the filled bottle on which the auxiliary tool is installed is loaded onto a filled bottle support table from which a downward position corresponding to the inversion part is open, a shoulder part pressing step by which a shoulder part, which extends to an upper end of the body part from a lower end of an opening of the filled bottle that is loaded onto the filled bottle support table, is pressed so as to prevent upward movement thereof, and a bottom part pushup step in which the inversion part, in a state of projecting outwardly from the body part of the filled bottle, which is prevented from upward movement by the shoulder part pressing step, is pressed upwardly and recessed into the body part by an end of a rod shaped pushup member. 
     In the bottom part recessing step of the present invention, the filled bottle is loaded onto the filled bottle support table by the filled bottle loading step, and in a state in which the shoulder part of the filled bottle is pressed by the shoulder part pressing step, the inversion part of the filled bottle, in a projected state, is pressed upwardly and recessed inwardly by the bottom part pushup step. In the bottom part pushup step, when an end of the pushup member pushes the bottom part of the filled bottle upward, an upward pressing force is applied in the axial direction of the filled bottle. However, due to the fact that the shoulder part of the filled bottle is pressed upon, the resultant buckling strength of the bottle is sufficiently brought forth, whereby resistance can be provided against the upward pushing force of the pushup member. Owing thereto, when the inversion part is pressed upward, causing the inversion part to be recessed inward, even if a load is applied to the bottle, inappropriate deformation and buckling of the bottle does not occur, and a content-filled bottle that exhibits high product quality can be manufactured. 
     Furthermore, when the inversion part of the synthetic resin bottle includes an inclined portion, which is capable of concave/convex inversion in a symmetrical shape inwardly and/or outwardly of the body part, and a bottom part central portion formed in a region surrounded by the inclined portion, in the bottom part pushup step of the bottom part recessing step, preferably, the inclined portion and the bottom part central portion of the inversion part are pressed upwardly by the end of the pushup member. 
     Consequently, in the bottom part pushup step, since the inclined portion and the bottom part central portion are pressed upwardly by the end of the pushup member, inappropriate deformation of the inclined portion and the bottom part central portion is regulated while the inversion part is recessed inwardly into the body part. Owing thereto, the bottom part of the filled bottle can be recessed into a correct shape for the inversion part. 
     Further, the auxiliary tool separating step of the present invention is characterized by a filled bottle retaining step in which the opening is gripped from the outside along a lower surface of a flange formed on an outer periphery of the opening of the filled bottle, and an auxiliary tool pull down step of coupling to the auxiliary tool, which is installed on the filled bottle retained by the filled bottle retaining step, and pulling the auxiliary tool downward of the filled bottle. 
     In accordance with the present invention, since the flange of the bottle having a comparatively high strength is retained from below while the auxiliary tool is pulled downward, compared to a case, for example, in which the body part is retained while the auxiliary tool is pulled downward, deformation of the body can be favorably suppressed, and the auxiliary tool can be detached without diminishing the product quality of the bottle. 
     Further, the present invention provides a device for manufacturing a content-filled bottle, in which liquid contents are hermetically sealed in a synthetic resin bottle comprising a hollowed body part, an opening provided on an upper end of the body part and capable of being fitted with a cap thereon, a bottom part that closes a bottom end of the body part, and an inversion part provided within a portion of the bottom part, which is capable of undergoing inversion between a state of being recessed inwardly into the body part along an axial direction of the body part, and a state of projecting outwardly from the body part, the device being characterized by: 
     auxiliary tool mounting means for mounting a cylindrical auxiliary tool, formed with a shape such that a portion thereof capable of being mounted on the bottom part of the bottle and corresponding to the inversion part is opened, and which is capable of accommodating the inversion part in a state of projecting outwardly from the body part, onto a bottom part outer periphery of a non-content-filled empty bottle under a condition in which the inversion part is recessed inwardly into the body part; 
     bottom part projecting means for causing the inversion part on the bottom part of the empty bottle, on which the auxiliary tool has been mounted by the auxiliary tool mounting means, to project outwardly from the body part; 
     content filling means for filling liquid contents into the interior of the bottle having the inversion part thereof projecting outwardly from the body part by means of the bottom part projecting means; 
     sealing means for fitting a cap onto the opening of the filled bottle, the interior of which has been filled with liquid contents by the content filling means, for thereby sealing the bottle; 
     bottom part recessing means for recessing the inversion part, which projects outwardly from the filled bottle on which the cap has been fitted by the sealing means, inwardly into the body part; and 
     auxiliary tool separating means for separating the auxiliary tool from the filled bottle in which the inversion part has been recessed inwardly into the body part by the bottom part recessing means, 
     wherein the auxiliary tool mounting means further comprises an empty bottle chuck for gripping the opening from an outer side thereof along an upper surface of a flange that is formed on an outer periphery of the opening of the empty bottle, an empty bottle support table disposed below the empty bottle that is retained by the empty bottle chuck, which is raised with the auxiliary tool loaded thereon whereby the auxiliary tool is installed onto the bottom part of the empty bottle, and which supports the empty bottle for being raised and lowered through the auxiliary tool, and table raising/lowering means for driving raising and lowering of the empty bottle support table, and 
     wherein the bottom part projecting means further comprises a rod shaped pushdown member, which is capable of being raised and lowered, disposed above an opening of the empty bottle that is retained by the empty bottle chuck, and which is inserted into the interior of the empty bottle from the opening, whereby the inversion part in an inwardly recessed state is pressed downwardly from the inside of the empty bottle so as to project outwardly from the body part, and a pushdown member raising/lowering means for driving raising and lowering of the pushdown member. 
     In manufacturing of the content-filled bottle by the device of the present invention, first, the auxiliary tool is installed onto the bottom outer periphery of an empty bottle by the auxiliary tool mounting means. Next, the inversion part on the bottom part of the empty bottle is inverted by the bottom part projecting means and made to project outwardly from the body part. In succession, the interior of the bottle is filled with liquid contents by the content filling means, and a cap is fitted onto the opening of the filled bottle by the sealing means for thereby sealing the bottle. In addition, the inversion part that projects downwardly from the filled bottle is pressed and inverted inwardly into the body part, thereby recessing the inversion part, by the bottom part recessing means. 
     According to the present invention, when the auxiliary tool is mounted onto the bottom outer periphery of the empty bottle by the auxiliary tool mounting means, the opening is gripped along an upper surface of the flange of the empty bottle by the empty bottle chuck provided in the auxiliary tool mounting means. Next, the empty bottle table is raised by the table raising/lowering means, whereby the auxiliary tool loaded onto the empty bottle support table is installed onto the bottom part of the empty bottle. Because the empty bottle chuck abuts against the bottle from the upper surface side of the flange and upward movement of the bottle is regulated, in such a regulated state, solely by raising the empty bottle support table, the auxiliary tool can be mounted onto the bottom part of the empty bottle, whereby installation of the auxiliary tool can be reliably and speedily carried out. 
     Furthermore, the raised empty bottle support table assumes a state in which the empty bottle is loaded thereon at the time that the auxiliary tool is mounted onto the bottom part of the empty bottle. In this condition, next, the inversion part of the bottom portion of the empty bottle is inversely projected downward by the bottom part projecting means. More specifically, the pushdown member is lowered by the pushdown member raising/lowering means and is inserted into the empty bottle, whereby the end of the pushdown member presses down on the inversion part. At this time, the empty bottle is gripped and placed in a positioned state by the empty bottle chuck and the empty bottle support table of the auxiliary tool mounting means. Owing thereto, the pressing position of the pushdown member, with respect to the inversion part of the bottom part of the empty bottle, is not shifted, and thus damage to the bottom part of the empty bottle can reliably be prevented. In addition, because such proper positioning is completed simultaneously with mounting of the auxiliary tool, the projecting operation of the inversion part, which is performed by the pushdown member, can be carried out quickly in sequence after mounting of the auxiliary tool, lowering of efficiency accompanying mounting of the auxiliary tool can be prevented, and the structure of the apparatus can be simplified together with enabling a reduction in equipment costs. 
     Further, when the inversion part of the synthetic resin bottle includes an inclined portion, which is capable of concave/convex inversion in a symmetrical shape inwardly and/or outwardly of the body part, and a bottom part central portion formed in a region surrounded by the inclined portion, preferably the pushdown member of the bottom part pushdown means includes an annular convex part on an end thereof, which presses downward along at least an inner peripheral edge of the inclined portion of the inversion part. 
     When the inversion part of the synthetic resin bottle is inverted, the boundary thereof with the bottom part central portion acts as a hinge. In the present invention, because an annular protrusion-is disposed on the end of the pushdown member of the bottom part pushdown means, the inversion part can be pressed down reliably along an inner peripheral edge of the inclined portion, which acts as a hinge. Consequently, the inversion part can be made to project outwardly from the body part without occurrence of inadvertent deformation to the inversion part, whereas the inversion part can be inverted with a comparatively small pressing force. Accordingly, the load applied to the bottom part when the inversion part is inverted can be reduced, damage to the bottom part of the empty bottle can be reliably prevented, and a content-filled bottle of high product quality can be manufactured with good efficiency. 
     Further, in the device of the present invention, preferably the pushdown member raising/lowering means is positioned on an upper side of the empty bottle that is retained by the empty bottle chuck, and is connected to the pushdown member through an arm extending directly above the opening of the empty bottle. 
     Accordingly, a driving mechanism or the like for raising and lowering the pushdown member can be disposed outside of the bottle through the arm. Owing thereto, because the driving mechanism or the like is not positioned directly above the opening, falling of foreign substances (for example, machine oil or the like) from the driving mechanism and incursion thereof from the opening of the bottle can be reliably prevented. 
     Further, in the device of the present invention, the bottom part recessing means further includes a filled bottle support table having an opening therein open at a downward position corresponding to the inversion part of the filled bottle on which the auxiliary tool is mounted, a shoulder part presser by which a shoulder part, which extends to an upper end of the body part from a lower end of an opening of the filled bottle that is loaded onto the filled bottle support table, is pressed so as to prevent upward movement thereof, a rod shaped pushup member, which is capable of being raised and lowered, and by which the inversion part, in a projected state, is pressed upwardly and recessed into the body part through the opening of the filled bottle support table by an end of the rod shaped pushup member, and a punch raising/lowering means for raising and lowering the pushup member. 
     According to the present invention, when the inversion part on the bottom part of the filled bottle is recessed inwardly into the body part by the bottom part recessing means, first, the filled bottle is loaded onto the filled bottle support table through the auxiliary tool and the shoulder part is pressed from above by the shoulder part presser. Subsequently, the pushup member is raised by the punch raising/lowering means, and the inversion part, which is in an outwardly projected state from the body part of the filled bottle, is pressed upwardly by the pushup member, which is raised through the opening of the filled bottle support table. Owing thereto, the projected state of the inversion part becomes inverted, whereby the inversion part is recessed inwardly into the body part of the bottle. 
     When the pushup member pushes the bottom part of the filled bottle upwardly, an upward pressing force is applied in the axial direction of the filled bottle. However, due to the fact that the shoulder part of the filled bottle is pressed upon, and by pressing the body part evenly over a comparatively wide range upwardly of the body part, a resultant buckling strength of the bottle is sufficiently brought forth, whereby resistance can be provided reliably against the upward pressing force of the pushup member. Owing thereto, even if a load is applied by the pressing force of the pushup member to portions apart from the inversion part of the bottle, inappropriate deformation and buckling of the bottle does not occur, and a content-filled bottle that exhibits high product quality can be manufactured. 
     Further, in the device of the present invention, the inversion part of the synthetic resin bottle preferably includes an inclined portion, which is capable of concave/convex inversion in a symmetrical shape inwardly and/or outwardly of the body part, and a bottom part central portion formed in a region surrounded by the inclined portion, the pushup member of the bottom part recessing means having a pushup abutment part on an end thereof which abuts against the inversion part, wherein the pushup abutment part has a shape corresponding to the bottom part central portion, and also has a shape adapted to circumferentially press at least a part of the inclined portion. 
     In accordance therewith, the pushup abutment part of the pushup member of the bottom part recessing means initially presses the bottom part central portion upwardly, while the inclined portion, which is also pushed up at the same time, is inverted along the shape of the pushup abutment part. Consequently, inadvertent deformation of the inclined portion and the bottom part central portion can be regulated while the bottom part is pressed upward, and the bottom part of the filled bottle can be recessed with a correct shape for the inversion part. Due to the pushup abutment part having a shape corresponding to the bottom part central portion, the upward pressing force can be applied while being concentrated on the bottom part central portion, and furthermore, by having a shape adapted to circumferentially press at least the inclined portion, inadvertent deformation when the inclined portion is inverted is prevented. Further, at this time, the pushup abutment part may also have a shape corresponding to the inclined portion. 
     Further, in the device of the present invention, the auxiliary tool separating means further includes a filled bottle chuck for gripping the opening from an outer side thereof along a lower surface of the flange formed on the outer periphery of the opening of the filled bottle, an auxiliary tool coupling member, which is capable of being raised and lowered so as to be coupled to the auxiliary tool that is mounted on the filled bottle retained by the filled bottle chuck, and for pulling down the auxiliary tool downward of the filled bottle, so as to separate the auxiliary tool from the filled bottle, and a coupling member raising and lowering means for driving raising and lowering of the auxiliary tool coupling member. 
     According to the present invention, the filled bottle is retained by the filled bottle chuck of the auxiliary tool separating means and the auxiliary tool coupling member is coupled to the auxiliary tool. Subsequently, in accordance with lowering of the auxiliary tool coupling member by means of the coupling member raising and lowering means, the auxiliary tool is made to separate from the filled bottle. When the auxiliary tool coupling member is lowered and the auxiliary tool is pulled downward, because the filled bottle is retained by the filled bottle chuck from beneath the flange, which exhibits a comparatively high strength, compared to a case, for example, in which the body part is retained while the auxiliary tool is pulled downward, deformation of the body can be favorably suppressed, and the auxiliary tool can be detached without adversely affecting the product quality of the bottle. 
     At this time, more specifically, the auxiliary tool preferably includes an annular latching groove on an outer peripheral surface thereof, and the auxiliary tool coupling member includes a projection that engages with the latching groove of the auxiliary tool, the projection latching with the latching groove when the auxiliary tool is raised by the coupling member raising and lowering means, and the latched state between the projection and the latching groove being maintained when the coupling member raising and lowering means is lowered, thereby separating the auxiliary tool from the filled bottle. Consequently, the auxiliary tool has a simple structure and can be separated quickly from the filled bottle. 
     Further, in the present invention, the auxiliary tool preferably is equipped with engaging pawls on a circumferential wall thereof, which are elastically attachable/detachable with a recess formed in the body part of the bottle. In accordance therewith, in the auxiliary tool, the engaging pawls engage reliably in the recess of the body part of the bottle, and the mounted condition of the auxiliary tool on the bottle can be reliably maintained without becoming detached therefrom. Furthermore, since the engaging pawls elastically engage with the recess of the bottle body part, engagement in the recess of the body bottle part can be smoothly performed upon mounting, and separation of the auxiliary tool can also be smoothly carried out by the auxiliary tool separating means. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS  
         FIG. 1  is a plan view showing in outline the structure of an empty bottle processing apparatus in the device of the embodiment of the present invention; 
         FIG. 2  is a plan view showing in outline the structure of a filled bottle processing apparatus in the device of the present embodiment; 
         FIG. 3  is a cross sectional explanatory view of a synthetic resin bottle adopted for use in the present embodiment; 
         FIG. 4  is a perspective view of an auxiliary tool; 
         FIG. 5  is an explanatory vertical cross sectional view of the auxiliary tool; 
         FIG. 6  is an explanatory cross sectional view showing an auxiliary tool mounting means and a bottom part projecting means of the empty bottle processing apparatus; 
         FIG. 7  is an explanatory plan view of an empty bottle chuck; 
         FIG. 8  is an explanatory view showing a retained state of an empty bottle; 
         FIG. 9  is an explanatory cross sectional view showing a bottom part recessing means and an auxiliary tool separating means of a filled bottle processing apparatus; 
         FIG. 10  is an explanatory view showing a retained state of a filled bottle in the bottom part recessing means; 
         FIG. 11  is an explanatory plan view of a shoulder part presser; 
         FIG. 12  is an explanatory view showing a retained state of a filled bottle in the auxiliary tool separating means; 
         FIG. 13  is an explanatory view typically illustrating an auxiliary tool mounting process and a bottom part projecting process performed by the device of the present embodiment; 
         FIG. 14  is an explanatory view typically showing a bottom part recessing process performed by the device of the present embodiment; and 
         FIG. 15  is an explanatory view typically showing an auxiliary tool separating process performed by the device of the present embodiment. 
     
    
    
     BEST MODE FOR CARRYING OUT THE INVENTION 
     An embodiment of the present invention shall be explained with reference to the drawings. The device of the present invention is utilized for manufacturing a content-filled bottle, which is filled with contents such as a beverage or the like, wherein portions thereof are made up of an empty bottle processing apparatus  1  as shown in  FIG. 1 , and a filled bottle processing apparatus  2  as shown in  FIG. 2 . Although not shown, a filler (content filling means) of a known configuration for filling of contents, and a capper (sealing means) of a known configuration for sealing bottles by means of caps, are disposed between the empty bottle processing apparatus  1  and the filled bottle processing apparatus  2 . 
     A bottle  3 , which is placed in the empty bottle processing apparatus  1 , comprises a polyethylene-telephthalate resin (PET) bottle made by blow formation. As shown in  FIG. 3 , the bottle  3  is made up of an opening  4  which opens upwardly, a hollow body part  6  connected through an expanded diameter shoulder part  5  from a lower end of the opening  4 , and a bottom part  7 , which closes (blocks) the lower end of the body part  6 . A threaded portion  9  for threaded attachment of a cap  8  thereon (see  FIG. 10 ) is formed on the opening  4 , and a flange  10 , which expands outwardly around the outer circumference thereof, is formed at a lower part of the threaded portion  9 . A ring-shaped ground portion  11  is formed on an outer circumferential side of the bottom part  7 , and an inversion part  12 , which is recessed inwardly into the body part  6 , is formed inside of the ground portion  11 . The inversion part  12  comprises an inclined portion  13 , which is convex/concave invertible in symmetrical shapes inwardly of the body part  6  and/or outwardly of the body part  6 , and an inward projecting portion  14  formed in a bottom central part surrounded by the inclined portion  13 . A first hinge section  15  is disposed in an annular shape at the outer circumferential edge of the inclined portion  13 , and a second hinge section  16  is disposed in an annular shape at the inner circumferential edge (i.e., at the border with the inward projecting portion  14 ) of the inclined portion  13 . The inclined portion  13  is made so as to be convex/concave invertible by bending about the first hinge section  15  and the second hinge section  16 . On the other hand, the inward projecting portion  14  is moved up and down upon inversion of the inclined portion  13  but the shape thereof is retained. Further, in order to preserve strength, a plurality of beads  17  are formed on the body part  6 . 
     In the description of the present embodiment, while the container is unfilled as shown in  FIG. 3 , the bottle  3  with the opening  4  thereof in an open state is referred to as an empty bottle, whereas as shown in  FIG. 10 , a sealed state thereof, in which the interior of the container is filled and the opening  4  is sealed by a cap  8 , is referred to as a filled bottle. 
     First, an explanation shall be given concerning the empty bottle processing apparatus  1 . As shown in  FIG. 1 , on the upstream side of the empty bottle processing apparatus  1 , an empty bottle injection turret  18  and an auxiliary tool injection turret  19  are provided. The empty bottle injection turret  18  is connected to a terminal end of an empty bottle injection conduit  21  equipped with a screw conveyor  20 , which inputs empty bottles  3  to the empty bottle processing apparatus  1 . The auxiliary tool injection turret  19  is connected to a terminal end of an auxiliary tool injection conduit  23  equipped with a screw conveyor  22 , which inputs auxiliary tools  24  to the empty bottle processing apparatus  1 . Further, on the downstream side of the empty bottle processing apparatus  1 , a discharge turret  25  for discharging empty bottles  3  and a discharge conveyor  26  are provided. The discharge conveyor  26  transports empty bottles  3 , which have gone through the empty bottle processing apparatus  1 , to an unillustrated filler. 
     The auxiliary tool  24  is formed in a cylindrical shape from a comparatively hardened synthetic resin material, and is installed onto the bottle  3  so as to cover the bottom part  7  thereof from a lower end portion of the body part  6  of the bottle  3 . As shown in  FIGS. 4 and 5 , the auxiliary tool  24  is formed by a peripheral wall  27  and a bottom part supporting section  28 . Bead engaging pawls  29 , which project inwardly and are engageable and detachable with respect to the lowermost positioned beads  17  (recesses) formed in the body part  6 , are disposed in the peripheral wall  27  of the auxiliary tool  24 . The bead engaging pawls  29  engage elastically within the beads  17  of the bottle  3  through cuts  30 . Further, an opening  31  positioned to correspond with the inversion part  12  of the bottle  3  is formed in the bottom part supporting section  28  of the auxiliary tool  24 , and an annular engagement groove  32  is formed on the outer circumferential surface thereof. The auxiliary tool  24  of the present embodiment has a cylindrical shape corresponding to the shape of the bottle  3 , however, for example, in the case that the bottle is formed with a polygonal prism shape, the auxiliary tool may have a polygonal tubular shape corresponding to the shape of the bottle. 
     As shown in  FIG. 6 , the empty bottle processing apparatus  1  is equipped with a support pillar  34  disposed upright on a base  33 , a drive gear  35  supported rotatably on the support pillar  34 , and a turntable  36  that rotates integrally with the gear  35 . Further, a top panel  37  is supported rotatably on an upper end of the support pillar  34 , such that the top panel  37  and the turntable  36  are connected together integrally by a plurality of vertically extending guide rods  38 . The gear  35  is connected to an unillustrated rotary driving means such as a motor or the like. In addition, the empty bottle processing apparatus  1  comprises plural auxiliary tool mounting means  39  for mounting auxiliary tools  24  onto the empty bottles  3 , and a plurality of bottom part projecting means  40 , for causing the inversion part  12  of the empty bottles  3  to be inverted and project downwardly. 
     Each of the auxiliary tool mounting means  39  comprises an empty bottle chuck  41  fixed to and supported by one of the guide rods  38 , and an empty bottle support table  42 , which is supported while capable of being raised and lowered on the guide rod  38  at a downward position from the empty bottle chuck  41 . 
     As shown in  FIG. 7 , the empty bottle chuck  41  comprises a base block  43 , which is fixedly supported on the guide rods  38 , and a pair of claw members  44 , which are openably and closably supported on the base block  43 . Further, a pinion gear  45  is disposed on an outer side of the base block  43  of the empty bottle chuck  41 , wherein the pinion gear  45 , as shown in  FIG. 6 , meshes with a rack  46 , which is disposed for displacement up and down along the guide rod  38 . As shown in  FIG. 7 , the pinion gear  45  drives an unillustrated opening/closing mechanism contained internally within the base block  43  through an axis of rotation  47 . Moreover, the pinion gear  45  is rotated in response to raising and lowering of the rack  46 , and in accordance therewith, the claw members  44  are opened and closed. As shown in  FIG. 6 , the rack  46  is equipped with a cam follower  48 , such that the cam follower  48  is guided by a cam rail  49  disposed on an outer circumference of the support pillar  34 , thereby raising and lowering the rack  46 . As shown in  FIG. 8 , the claw members  44  of the empty bottle chuck  41  grip the opening  4  from the outside along an upper surface of the flange  10  of the empty bottle  3 . 
     As shown in  FIGS. 6 and 8 , the empty bottle support table  42  comprises an auxiliary tool loader  50  for loading the auxiliary tool  24 , which is injected from the auxiliary tool injection turret  19 , and a raising/lowering arm  51 , which is supported for being raised and lowered on the guide rod  38 . As shown in  FIG. 6 , the raising/lowering arm  51  is equipped with a cam follower  52 , such that the cam follower  52  is guided by a cam rail  53  disposed on an outer circumference of the support pillar  34 , thereby raising and lowering the auxiliary tool loader  50 . The cam follower  52  and the cam rail  53  constitute the table raising/lowering means of the present invention. 
     The empty bottle support table  42  installs the auxiliary tool  24 , which is loaded onto the auxiliary tool loader  50 , onto an empty bottle  3  by raising it along the bottom part  7  of the empty bottle  3 , which is supported by the empty bottle chuck  41 . At this time, because the empty bottle chuck  41  grips the opening  4  by the claw members  44  along an upper surface of the flange  10  of the empty bottle  3 , even if an upward pressing force is applied to the empty bottle  3  when the auxiliary tool  24  is installed thereon, upward movement of the empty bottle  3  is reliably regulated. In addition, as shown in  FIG. 8 , the empty bottle  3  with the auxiliary tool  24  mounted thereon assumes a state of being sandwiched from above and below by the empty bottle chuck  41  and the empty bottle support table  42 , and therefore the positional state of the empty bottle  3  is maintained. 
     As shown in  FIG. 6 , the bottom part projecting means  40  comprises a rod-shaped pushdown member  54 , and a raising/lowering arm  55  connected to an upper end of the pushdown member  54 , and which extends outside of the empty bottle  3  from an upper end of the pushdown member  54 . The raising/lowering arm  55  is supported for being raised and lowered on the guide rod  38  and is equipped with a cam follower  56 . The cam follower  56  is guided by a cam rail  57  disposed on an outer circumference of the support pillar  34 , thereby raising and lowering the pushdown member  54 . The cam follower  56  and the cam rail  57  constitute the pushdown member raising/lowering means of the present invention. As shown in  FIG. 8 , the pushdown member  54  is lowered from the opening  4  into the body part  6  and pushes down on the inversion part  12 . The end of the pushdown member  54  is formed with a shape corresponding to the inward projecting portion  14  of the inversion part  12 , and thereby, an annular protrusion  58  also is formed that pushes down along an inner circumferential edge (second hinge section  16 .) of the inclined portion  13 . 
     When the inversion part  12  of the empty bottle  3  is pushed down by the pushdown member  54 , because the empty bottle  3  is placed in a positional state by being sandwiched between the empty bottle chuck  41  and the empty bottle support table  42 , the annular protrusion  58  of the pushdown member  54  abuts with good precision against the inner circumferential edge (second hinge section  16 ) of the inclined portion  13 . In addition, as a result of the auxiliary tool  24  being mounted on the empty bottle  3 , the inversion part  12  of the empty bottle  3 , which is pressed down and projected downwardly by the pushdown member  54 , is accommodated within the opening  31  of the auxiliary tool, whereby the downward projection of the inversion part  12  can be smoothly carried out. 
     Next, an explanation shall be given concerning the filled bottle processing apparatus  2 . As shown in  FIG. 2 , the filled bottle processing apparatus  2  is equipped with a bottom part recessing means  59 , and an auxiliary tool separating means  61 , which is disposed on a downstream side of the bottom part recessing means  59  via a filled bottle transport turret  60 . A filled bottle injection turret  62  is disposed on an upstream side of the bottom part recessing means  59 . The filled bottle injection turret  62  is connected to a terminal end of a filled bottle injection conduit  64 , which is provided with a screw conveyor  63  therein, where after passing through an unillustrated filler and capper, the transported filled bottle  3  is input to the bottom part recessing means  59 . Further, on a downstream side from the auxiliary tool separating means  61 , a filled bottle discharge turret  65  and first and second auxiliary tool discharge turrets  66 ,  67  are provided. A filled bottle discharge conveyor  68  is connected to an initial end of the filled bottle discharge turret  65 , and an auxiliary tool discharge conveyor  69  is connected to an initial end of the second auxiliary tool discharge turret  67 . 
     As shown in  FIG. 9 , the bottom part recessing means  59  comprises a support pillar  71  disposed in an upstanding manner on a base  70 , a drive gear  72 , which is supported rotatably on the support pillar  70 , and an outer tubular support body  73  that rotates integrally with the gear  72 . A filled bottle support table  74  is disposed integrally on the outer tubular support body  73 . A plurality of first guide rods  75 , which extend upwardly therefrom, and a plurality of second guide rods  76 , which extend downwardly therefrom, are disposed on the filled bottle support table  74 . A top panel  37  is supported integrally on upper ends of the first guide rods  75 . The gear  72  is connected to an unillustrated rotary driving means such as a motor or the like. 
     The filled bottle support table  74  includes a plurality of filled bottle loading sections  78 , wherein openings  79  are formed in the filled bottle loading sections  78 , which penetrate vertically therethrough corresponding to the inversion parts  12  of the filled bottles  3 . 
     A shoulder presser  80  is supported while capable of being raised and lowered on the first guide rod  75 . The shoulder presser  80  comprises a cam follower  81 , such that the cam follower  81  is guided by a cam rail  82  disposed on an outer circumference of the support pillar  71 , thereby raising and lowering the shoulder presser  80 . As shown in  FIG. 10 , the shoulder presser  80  comprises a pressing recess therein corresponding in shape to the shoulder part  5  of the filled bottle  3 , and as shown in plan view in  FIG. 11 , also includes an insertion hole  84 , through which the opening  4  of the filled bottle  3  onto which the cap  8  has been fitted may be inserted. 
     As shown in  FIG. 9 , a pushup member  85  is supported while capable of being raised and lowered on the second guide rod  76 . The pushup member  85 , as shown in  FIG. 10 , is connected to an upper end of a raising/lowering shaft  86 , wherein the raising/lowering shaft  86  is supported in a guide tube  87  so as to be capable of being raised and lowered through a shock absorbing spring  88 . A pushup abutment member  89 , having a shape corresponding to the inclined portion  13  and the inward projecting portion  14  of the inversion part  12 , is formed at the tip end of the pushup member  85 . The guide tube  87  is connected to a slide block  90 , which is slidably supported on the second guide rod  76 . The slide block  90  is equipped with a cam follower  91 , wherein the cam follower  91  is guided by a cam rail  92  disposed with a given gap circumferentially around the support pillar  71 . The cam follower  91  and the cam rail  92  constitute the punch raising/lowering means of the present invention. Further, in the present embodiment, the shape of the pushup abutment member  89  is shown as corresponding to the inclined portion  13  and the inward projecting portion  14  of the inversion part  12 . However, although not shown, for example, concerning the abutting part that abuts against the inclined portion  13  (i.e., the circumferential region around the part that corresponds to the inward projecting portion  14 ), the shape thereof may also be formed so as to abut in a circumferential form on a portion of the inclined portion  13 . 
     The pushup member  85  is positioned downwardly of each of the filled bottle loading sections  78  of the filled bottle support table  74 , so that when the support pillar  71  is rotated around, the pushup member  85  is raised to penetrate through the openings  79  of the filled bottle loading sections  78  under the guidance of the cam rail  92 . Owing thereto, the end of the pushup member  85  presses up on the downwardly projecting inversion part  12  of the filled bottle  3 , causing the inversion part  12  to become recessed inwardly into the filled bottle  3 . At this time, by providing the shock absorbing spring  88  in the interior of the guide tube  87 , an excessive pushing force from the pushup member  85  is prevented from being imposed on the inversion part  12 , whereby damage to the inversion part  12  can reliably be prevented. Further, by providing the pushup abutment member  89  on the end of the pushup member  85 , the inversion part  12  can be recessed along the recessed shape thereof when the inversion part is inwardly recessed, and inadvertent deformations of the bottom part  7  can be prevented, enabling the inversion part to be smoothly recessed inwardly. In  FIGS. 9 and 10 , reference numeral  93  indicates a holder that supports the bottle  1  from one side thereof. 
     As shown in  FIG. 9 , the auxiliary tool separating means  61  is equipped with a support pillar  94  that stands upright on a base  70 , a drive gear  95 , which is supported rotatably by the support pillar  94 , and an outer tubular support body  96  that rotates integrally with the drive gear  95 . On the upper end outside periphery of the outer tubular support body  96 , a flange-shaped projecting portion  97  is provided, wherein a plurality of upwardly extending first guide rods  98  and a plurality of downwardly extending second guide rods  99  are provided on the projecting portion  97 . A top panel  100  is supported integrally on upper ends of the first guide rods  98 . The gear  95  is arranged to rotate simultaneously with the gear  72  of the aforementioned bottom part recessing means  59  through a drive gear  101  of the filled bottle transport turret  60 . 
     A filled bottle chuck  102  is supported in a fixed condition to the first guide rod  98 . The filled bottle chuck  102  has a similar structure as that of the previously discussed empty bottle chuck  41 , and therefore detailed explanations thereof shall be omitted. However, differing from the empty bottle chuck  41 , as shown in  FIG. 12 , a pair of claw members  103 , which open and close, grip the opening  4  on which the cap  8  is fitted from an outer side thereof along a lower surface of the flange  10  of the filled bottle  3 . 
     As shown in  FIG. 9 , an auxiliary tool connection member  104  is supported so as to enable raising and lowering thereof on the second guide rod  99 . The auxiliary tool connection member  104  is equipped with a cam follower  105 , wherein the cam follower  105  is guided by a cam rail  106  disposed with a given gap circumferentially around the support pillar  94 . The cam follower  105  and the cam rail  106  constitute the connection member raising/lowering means of the present invention. As shown in  FIG. 12 , the auxiliary tool connection member  104  includes a projection  107  for engagement in an engagement groove  32 , which is formed on the outer circumferential surface of the auxiliary tool  24 . The auxiliary tool connection member  104  is raised along the auxiliary tool  24 , whereby the projection  107  is made to engage in the engagement groove  32 , and while the engagement state is maintained, the auxiliary tool  24  is separated from the filled bottle  3  by lowering the auxiliary tool connection member  104 . Then, as shown in  FIG. 2 , the mutually separated filled bottle  3  and the auxiliary tool  24  are transferred respectively to the filled bottle discharge turret  65  and the first auxiliary tool discharge turret  66 , whereby they are discharged. 
     The content filled bottle is manufactured in the following manner by the device of the present embodiment, which is constructed as described above. More specifically, first, the auxiliary tool  24  is installed onto the bottom part  7  of an empty bottle  3  by the auxiliary tool mounting means  39  of the empty bottle processing apparatus  1  shown in  FIGS. 1 and 6  (auxiliary tool mounting step). Next, as shown in  FIG. 8 , the inversion part  12  on the bottom part  7  of the empty bottle  3 , on which the auxiliary tool  24  has been mounted, is pressed downwardly and inverted by the bottom part projecting means  40  of the empty bottle processing apparatus  1 . Then, although not shown, the interior of the bottle  3  for which the inversion part  12  thereof has been inverted and projected downward is filled with liquid contents by a filler (content filling step), and a cap  8  is fitted to and seals the opening  4  of the filled bottle  3 , the interior of which has been filled with liquid contents, by a capper (sealing step). Thereafter, as shown in  FIG. 10 , the inversion part  12  that projects downwardly from the filled bottle  3  is pressed upward and recessed inwardly into the bottle by the bottom part recessing means  59  of the filled bottle processing apparatus  2  shown in  FIGS. 2 and 9  (bottom part recessing step). Additionally, the auxiliary tool  24  is separated from the filled bottle  3  for which the inversion part  12  thereof has been recessed by the auxiliary tool separating means  61  of the filled bottle processing apparatus  2  shown in  FIG. 12  (auxiliary tool separating step). 
     As shown in  FIG. 13(   a ), in the auxiliary tool mounting means  39 , the opening  4  is gripped from the outside by the empty bottle chuck  41  along an upper surface of the flange  10  of the empty bottle  3  (empty bottle retaining step). Next, as shown in  FIG. 13(   b ), the empty bottle support table  42  on which the auxiliary tool  24  is mounted is raised, whereby the auxiliary tool  24  is installed onto the bottom part  7  of the empty bottle  3 . At this time, the empty bottle  3  is loaded onto the empty bottle support table  42  through the auxiliary tool  24 , and the empty bottle  3  is sandwiched and held between the empty bottle chuck  41  and the empty bottle support table  42 , thereby securing the empty bottle  3  in a properly positioned state (empty bottle loading step). 
     Next, in the bottom part projecting means  40 , as shown in  FIG. 13(   c ), the pushdown member  54  is lowered from the opening of the empty bottle  3 , which is loaded on the empty bottle support table  42 , and the inversion part  12  is pressed down from an inner side of the empty bottle  3  by the end of the pushdown member  54 , thereby causing the inversion part  12  to become inverted and project outwardly (bottom part downward pressing step). At this time, as shown in  FIG. 8 , by providing the annular protrusion  58  on the end of the pushdown member  54 , the annular protrusion  58  abuts against the second hinge section  16  at the inner circumferential edge of the inclined portion  13 , so that the inversion part  12  can be inverted smoothly. Moreover, because the empty bottle  3  is sandwiched and positioned between the empty bottle chuck  41  and the empty bottle support table  42 , the annular protrusion  58  of the pushdown member  54  can be made to abut with good accuracy against the second hinge section  16 . 
     Additionally, as shown in  FIG. 13(   d ), after the inversion part  12  has been inverted to project outwardly, the pushdown member  54  is raised and retracted from the interior of the empty bottle  3  (pushdown member retracting step), the empty bottle  3  is released from being retained by the empty bottle chuck  41 , and the empty bottle  3  is transferred to the discharge turret  25  shown in  FIG. 1  and discharged therefrom. The interior of the discharged empty bottle  3  is filled with liquid contents, the filled bottle is sealed by a cap, and the bottle is input to the filled bottle processing apparatus  2 . 
     In the bottom part recessing means  59  of the filled bottle processing apparatus  2 , first, as shown in  FIG. 14(   a ), the filled bottle  3  is loaded onto the filled bottle support table  74  (filled bottle loading step). Next, as shown in  FIG. 14(   b ), the shoulder presser  80  is lowered, whereby the shoulder part  5  of the filled bottle  3 , which has been loaded onto the filled bottle support table  74 , is pressed from above (shoulder part pressing step). Owing thereto, the filled bottle  3  is placed in a positioned state wherein upward movement thereof is prohibited. Further, while this positioned state is maintained, as shown in  FIG. 14(   c ), the pushup member  85  is raised, thereby pressing upwardly on the inversion part  12  of the filled bottle  3 , which is in an outwardly projected state, and causing the inversion part to be recessed inwardly by the end of the pushup member  85  (bottom part pushup step). At this time, as shown in  FIG. 10 , because the pushup abutment member  89  of the pushup member  85  causes the inversion part  12  to be recessed inwardly along an inwardly inverted shape, inadvertent deformation of the bottom part is reliably prevented, and the inversion part  12  can be smoothly recessed inwardly. Moreover, by proper positioning of the filled bottle  3  by the shoulder presser  80 , the pushup abutment member  89  of the pushup member  85  is made to abut against the inclined portion  13  and the inward projecting portion  14  of the inversion part  12 , so that the inversion part  12  can be recessed reliably. Thereafter, as shown in  FIG. 14(   d ), the pushup member  85  is lowered downward from the filled bottle support table  74 , the shoulder presser  80  is raised, and as shown in  FIG. 2 , the filled bottle  3  is transferred to the filled bottle transport turret  60 . The filled bottle transport turret  60  delivers the filled bottle  3  to the auxiliary tool separating means  61 . 
     In the auxiliary tool separating means  61  of the filled bottle processing apparatus  2 , the filled bottle  3 , which has been delivered from the filled bottle transport turret  60 , is retained by the filled bottle chuck  102  as shown in  FIG. 15(   a ). At this time, the filled bottle chuck  102  grips the opening  4  from the outside along an upper surface of the flange  10  of the filled bottle  3  (filled bottle retaining step). Next, as shown in  FIG. 15(   b ), the auxiliary tool connection member  104  is raised and made to connect with the auxiliary tool  24  mounted on the filled bottle  3 . Additionally, as shown in  FIG. 15(   c ), the auxiliary tool connection member  104  is lowered, thereby pulling the auxiliary tool  24 , which is mounted on the filled bottle  3 , downwardly and causing the auxiliary tool  24  to separate from the filled bottle  3  (auxiliary tool pull down step). Thereafter, as shown in  FIG. 2 , the auxiliary tool  24  is transferred to the first auxiliary tool discharge turret  66  and is discharged, the filled bottle  3  is released from being retained by the filled bottle chuck  102 , and the filled bottle  3  is transferred to the filled bottle discharge turret  65  and discharged therefrom. 
     INDUSTRIAL APPLICABILITY 
     In the manufacturing method and device for manufacturing a content filled bottle according to the present invention, an inversion part is provided on a bottom part of the bottle, wherein the bottle is manufactured by filling liquid contents into the interior of a synthetic resin bottle, and the inversion part thereof is capable of being inverted between a state in which the inversion part is recessed inwardly along an axial direction of the body part, and a state in which the inversion part projects outwardly from the body part. In accordance with such a manufacturing method and device for manufacturing a content filled bottle of the present invention, inappropriate deformation and buckling of the bottle can be prevented, thus enabling a content filled bottle to be manufactured with good efficiency and high product quality.