Patent Publication Number: US-8528304-B2

Title: Method and device for producing content filling bottle

Description:
TECHNICAL FIELD 
     The present invention relates to a method and device for producing a content filling bottle, and more specifically, to a method for producing a content filling bottle by filling liquid contents into a synthetic resin bottle having a bottom part formed to partly project outwardly in an axial direction of a body part so that the projecting part can be inverted and recessed inwardly into the body part, along with a device for carrying out the method. 
     BACKGROUND ART 
     As a content filling bottle, which accommodates liquid contents such as a drink therein, for example, a bottle (PET bottle) made by blow forming a polyethylene-terephthalate material has been known. 
     With this type of bottle, when an opening of the bottle is hermetically sealed with a cap and the contents of the bottle are then cooled, a decrease in the volume of the contents or the like reduces the pressure in the bottle. This may deform a body part of the bottle, making the appearance of the bottle unfavorable. 
     Therefore, a plurality of flexible panels are formed on the body part to evenly absorb the deformation accompanying the internal pressure reduction caused by the cooling of the contents after filling (see, for example, Japanese Patent Laid-Open No. 6-72423). However, the provision of such panels complicates the shape of the bottle, thus increasing the material cost for the bottle. 
     Consequently, in a known device, a portion of the bottom part of the bottle can be inverted between a concave shape and a convex shape so that the liquid contents are filled into the bottle with the inversion part projecting outwardly from the bottom and so that after the bottle opening is sealed with the cap, the inversion part is recessed inwardly into the bottle (National Publication of International Patent Application No. 2006-501109). 
     Thus, with the bottle described in National Publication of International Patent Application No. 2006-501109, prior to filling of the liquid contents into the bottle, the inversion part of the bottom part of the bottle is pressed out so as to project outwardly from the body part. 
     Then, liquid contents are filled into the interior of the bottle with the inversion part of the bottom part projecting outwardly from the body part. The opening of the bottle is then sealed with the cap. 
     Thereafter, the outwardly projecting inversion part of the bottom part of the bottle is pressed up toward the interior of the bottle so as to be recessed inwardly into the bottle. Thus, the pressure inside the bottle increases. As a result, even when a pressure reduction results from, for example, the cooling of the liquid contents, the pressure reduction is canceled by the above-described pressure increase, preventing the body part of the container from being subjected to reduced pressure deformation. 
     In this manner, the inversion part, which can be inverted between the concave and convex shapes, is formed in the bottom part of the bottle and inverted in the stage of produce of the content filling bottle. This eliminates the need to provide the body part of the bottle with a panel that evenly absorbs such deformation as described above. This in turn enables an increase in the degree of freedom of bottle design and a reduction in the material costs of the bottle. 
     However, with the bottle that prevents the reduced pressure deformation of the body part by the concave and convex inversion of the bottom part of the bottle, the inversion part of the bottom part of the bottle needs to be projected outwardly from the body part before filling of the contents. This makes the bottom part of the bottle unstable and thus makes it difficult to transport the bottle in a self-standing state. 
     Therefore, a cylindrical auxiliary tool having a stable ground portion to assist in making the bottle self-standing is installed in the bottom part of the bottle so that the inversion part of the bottom part can be accommodated in the auxiliary tool. Then, regardless of whether the inversion part is in the concave or convex state, the bottle can be stood upright via the auxiliary tool. As a result, stable self-standing transportation can be carried out. 
     However, for example, if heated contents are filled into the bottle (what is called hot filling), then before the filling of the contents, the bottle is turned upside down and washed with washing water. However, when the bottle with the auxiliary tool installed therein is turned upside down for washing, the washing water stuck on the auxiliary tool flows down to the opening of the bottle. This makes the bottle unsanitary. 
     If contents at the ordinary temperature are filled into the bottle (what is called aseptic filling), the bottle is used of which an inner surface and an outer surface are sterilized and the filling operation is performed in a sterile state. In this case, to remain installed in the bottle, the auxiliary tool needs to be subjected to a sterilization treatment or the like. This increases the number of operation man-hours, thereby reducing efficiency. 
     DISCLOSURE OF THE INVENTION 
     The present invention has been devised taking into account the aforementioned problems. An object of the present invention is to provide a method and device for producing a content filling bottle which method and device, in producing a content filling bottle that prevents reduced pressure deformation of a body part by concave and convex inversion of a bottom part, can efficiently produce a sanitary and high-quality content filling bottle and which method and device is suitable not only for what is called hot filling involving filling of heated contents but also for what is called aseptic filling involving contents at the ordinary temperature. 
     The present invention relates to a method and device for producing a content filling bottle, in which liquid contents are sealed inside a synthetic resin bottle. The present invention adopts a bottle comprising a hollowed body part, an opening formed at an upper end of the body part and onto which a cap is capable of being fitted, a bottom part closing a lower end of the body part, and an inversion part formed in a portion of the bottom part so as to project outwardly from the body part in the axial direction of the body part, the inversion part being capable of being inverted and recessed inwardly into the body part in the axial direction thereof. 
     In an aspect of a method according to the present invention for accomplishing the object, first, a content filling step and a sealing step are carried out; in the content filling step, liquid contents are filled into an interior of the empty bottle with the inversion part projecting outwardly from the body part and with the contents not filled therein yet, and in the sealing step, the cap is fitted onto the opening of the filled bottle with the liquid contents filled therein in the content filling step to seal the bottle. In the content filling step, the contents heated to a predetermined temperature may be filled into the empty bottle (what is called hot filling) or the contents at the ordinary temperature may be filled into the empty bottle (what is called aseptic filling). Then, an auxiliary tool installing step is carried out; in the auxiliary tool installing step, a cylindrical auxiliary tool is installed on an outer periphery of the bottom part of the filled bottle with the cap fitted thereon in the sealing step, the auxiliary tool being shaped so as to be capable of being mounted on and removed from the bottom part of the bottle, and the lower portion of the bottom part corresponding to the inversion part being open. A bottom part recessing step is then carried out; in the bottom part recessing step, the bottom part of the filled bottle with the auxiliary tool installed thereon in the auxiliary tool installing step is supported via the auxiliary tool, and the downwardly projecting inversion part is pressed up so as to be inverted and recessed inwardly into the bottle. Then, an auxiliary tool separating step is carried out; in the auxiliary tool separating step, the auxiliary tool is separated from the filled bottle with the inversion part recessed inwardly into the body part in the bottom part recessing step. 
     The method according to the present invention is characterized by carrying out the auxiliary installing step after the sealing step. Thus, during the content filling step, the auxiliary tool is not installed on the bottle. Consequently, washing of the bottle, which is performed for the hot filling, can be achieved acceptably sanitarily. For the aseptic filling, the need for a sterilization treatment for the auxiliary tool is eliminated, preventing an increase in the number of operation steps. The filling and sealing operations can thus be efficiently performed. 
     Moreover, the bottom part recessing step is carried out after the auxiliary tool has been installed on the bottle in the auxiliary tool installing step. Thus, the auxiliary tool prevents the bottom part of the bottle from being subjected to inadvertent deformation or the like, and allows the inversion part to be reliably invented and recessed inwardly into the bottle. This prevents the bottom part of the bottle from being improperly deformed. A high-quality content filling bottle can thus be produced. 
     In another aspect of the method according to the present invention for accomplishing the object, a content filling step and a sealing step are carried out; in the content filling step, liquid contents are filled into an interior of the empty bottle with the inversion part projecting outwardly from the body part and with the contents not filled therein yet, and in the sealing step, the cap is fitted onto the opening of the filled bottle with the liquid contents filled therein in the content filling step to seal the bottle. In the content filling step, the contents heated to a predetermined temperature may be filled into the empty bottle (what is called hot filling). However, in particular, this step is suitably used when the contents at the ordinary temperature are filled into the empty bottle (what is called aseptic filling). Then, a bottle retaining step is carried out; in the bottle retaining step, an upper portion of the body part of the filled bottle with the cap fitted thereon in the sealing step and a shoulder part of the filled bottle, which is continuous with the opening, are gripped to retain the filled bottle so that the bottle is inhibited from moving in a vertical direction. A bottom part recessing step is then carried out; in the bottom part recessing step, with the state of the filled bottle retained in the bottle retaining step maintained, the inversion part of the bottom part of the filled bottle is pressed up so as to be inverted and recessed inwardly into the bottle. 
     The method according to the present invention is characterized in that in the bottle retaining step, the upper portion of the body part and the shoulder part of the filled bottle are gripped to retain the filled bottle so that the filled bottle is inhibited from moving in the vertical direction, and this state is maintained when the inversion part of the bottom part of the filled bottle is inverted and recessed inwardly into the bottle in the bottom part recessing step. Thus, the inversion part can be inverted and recessed inwardly into the bottle without the need to make the bottle self-standing. This eliminates the need for an auxiliary tool that assists in making the bottle self-standing, dispensing with an operation of installing and removing the auxiliary tool. Consequently, producing efficiency can be improved. Furthermore, the non-use of the auxiliary tool is sanitarily preferable for the aseptic filling, in which the contents at the ordinary temperature are filled in the sterile state. This also eliminates the need for the sterilization treatment for the auxiliary tool or the like, enabling prevention of a possible decrease in efficiency. 
     The present invention is further characterized in that the bottom part of the bottle except for the inversion part is retained simultaneously with the gripping of the upper portion of the body part of the filled bottle with the cap fitted thereon in the sealing step as well as the shoulder part of the filled bottle, which is continuous with the opening. 
     Thus, in performing the bottom part recessing step, the bottle is fixed at both the top and bottom thereof corresponding to the shoulder part and the bottom part, respectively. Thus, when the inversion part is pressed, the bottom part can be accurately positioned. As a result, the inversion part can be reliably inverted and recessed inwardly into the bottle. 
     Furthermore, to accomplish the above-described object, an aspect of a device according to the present invention comprises content filling means for filling liquid contents into an interior of the empty bottle with the inversion part projecting outwardly from the body part and with the contents not filled therein yet, and sealing means for fitting the cap onto the opening of the filled bottle with the liquid contents filled therein by the content filling means to seal the bottle. The content filling means may fill the contents heated to a predetermined temperature into the empty bottle (what is called hot filling) or fill the contents at the ordinary temperature into the empty bottle (what is called aseptic filling). The device further comprises auxiliary tool installing means for installing a cylindrical auxiliary tool on an outer periphery of the bottom part of the filled bottle with the cap fitted thereon by the sealing means, the auxiliary tool being shaped so as to be capable of being mounted on and removed to and from the bottom part of the bottle, a lower portion of the bottom part corresponding to the inversion part being open, bottom part recessing means for supporting, via the auxiliary tool, the bottom part of the filled bottle with the auxiliary tool installed on the bottom part by the auxiliary tool installing means, and pressing the inversion part up so as to invert and recess the inversion part inwardly into the bottle, and auxiliary tool separating means for separating the auxiliary tool from the filled bottle with the inversion part recessed inwardly into the body part by the bottom part recessing means. 
     The device according to the present invention is characterized in that the auxiliary tool installing means installs the auxiliary tool on the outer periphery of the bottom part of the filled bottle with the cap fitted thereon by the sealing means. Thus, the auxiliary tool is not installed on the bottle during a filling operation and a sealing operation performed by the content filling means and the sealing means, respectively. Consequently, the filling and sealing operations can be acceptably sanitarily performed. 
     Moreover, since the auxiliary installing means installs the auxiliary tool on the bottle, for example, the bottle can be transported in a self-standing state on a conveyor. Furthermore, after the auxiliary tool installing means installs the auxiliary tool on the bottle, the bottom part recessing means inverts and recesses the inversion part inwardly into the bottle. Thus, the auxiliary tool installed on the bottom part of the bottle prevents the bottom part of the bottle from being subjected to inadvertent deformation or the like. Therefore, a high-quality content filling bottle can be produced. 
     Furthermore, to accomplish the above-described object, another aspect of a device according to the present invention comprises content filling means for filling liquid contents into an interior of the empty bottle with the inversion part projecting outwardly from the body part and with the contents not filled therein yet, and sealing means for fitting the cap onto the opening of the filled bottle with the liquid contents filled therein by the content filling means to seal the bottle. The content filling means may fill the contents heated to a predetermined temperature into the empty bottle (what is called hot filling). However, in particular, the content filling means is suitably used when the contents at the ordinary temperature are filled into the empty bottle (what is called aseptic filling). The device further comprises bottle retaining means for gripping an upper portion of the body part of the filled bottle with the cap fitted thereon by the sealing means and a shoulder part of the filled bottle, which is continuous with the opening, to retain the filled bottle so that the bottle is inhibited from moving in a vertical direction, and bottom part recessing means for pressing up the inversion part of the bottom part of the filled bottle retained by the bottle retaining means, so as to invert and recess the inversion part inwardly into the bottle. 
     The device according to the present invention is characterized by the provision of the bottle retaining means. Thus, when the bottom part recessing means presses the inversion part up to invert and recess the inversion part inwardly into the bottle, the bottle retaining means reliably retains the bottle so as to inhibit the bottle from moving in the vertical direction. This eliminates the need for an auxiliary tool and allows the inversion part to easily perform the inverting and recessing operation. Consequently, during the operations from the filling of the contents through the inverting and recessing of the inversion part, no auxiliary tool needs to be installed on the bottle. The filling and sealing operations can thus be acceptably sanitarily performed. This further eliminates the need for a mechanism that installs and removes the auxiliary tool on and from the bottle. The device configuration can thus be simplified to enable a reduction in installation space and in producing costs. 
     The device is further characterized in that the bottle retaining means comprises body part gripping means for gripping the upper portion of the body part and the shoulder part, and bottom part supporting means for supporting the bottom part of the filled bottle, the bottom part supporting means being provided below the body part gripping means, and in that the bottom part supporting means comprises a supporting concave part corresponding to the bottom part of the bottle and an opening part opening the lower portion of the bottom part corresponding to the inversion part. 
     Thus, when the bottom part recessing means inverts and recesses the inversion part inwardly into the bottle, the body part gripping means and bottom part supporting means sandwichingly hold the shoulder part and the bottom part from above and from below. Consequently, when the inversion part is pressed, the bottom part can be accurately positioned. The inversion part can thus be reliably inverted and recessed inwardly into the bottle. Moreover, since the bottom part supporting means comprises a supporting concave part corresponding to the bottom part of the bottle and an opening part which is open in a lower bottom portion thereof corresponding to the inversion part, the bottle can be reliably supported even with the inversion part projecting downwardly from the bottom part of the bottle. Furthermore, since the device further comprises the supporting concave part corresponding to the bottom part of the bottle, the bottom part of the bottle is peripherally pressed to allow the bottom part recessing step to be carried out with inadvertent deformation of the bottom part reliably prevented. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a sectional explanatory view of a synthetic resin bottle adopted in the present embodiment; 
         FIG. 2  is a plan view showing in outline the configuration of auxiliary tool installing means of a device according to a first embodiment of the present invention; 
         FIG. 3  is a plan view showing in outline the configuration of bottom part recessing means and auxiliary tool separating means of the device according to the first embodiment of the present invention; 
         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 of auxiliary tool installing means; 
         FIG. 7  is an explanatory plan view of a filled bottle chuck; 
         FIG. 8  is an explanatory view showing a retained state of a filled bottle; 
         FIG. 9  is an explanatory cross sectional view showing bottom part recessing means and auxiliary tool separating means; 
         FIG. 10  is an explanatory view showing a retained state of the 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 the filled bottle in the auxiliary part separating means; 
         FIG. 13  is an explanatory view typically showing an auxiliary tool installing step performed by the device according to the first embodiment of the present invention; 
         FIG. 14  is an explanatory view typically showing a bottom part recessing step performed by the device according to the first embodiment of the present invention; 
         FIG. 15  is an explanatory view typically showing an auxiliary tool separating step performed by the device according to the first embodiment of the present invention; 
         FIG. 16  is a plan view showing in outline the configuration of bottom part recessing means of a device according to a second embodiment of the present invention; 
         FIG. 17  is an explanatory cross sectional view showing bottom part recessing means; 
         FIG. 18  is an explanatory plan view of a filled bottle chuck; 
         FIG. 19  is an explanatory view showing a retained state by the filled bottle chuck; 
         FIG. 20  is an explanatory view showing a retained state of the filled bottle in the bottom part recessing means; and 
         FIG. 21  is an explanatory view typically showing a bottom part recessing step performed by the device according to the second embodiment of the present invention. 
     
    
    
     BEST MODE FOR CARRYING OUT THE INVENTION 
     Embodiments of the present invention adopt a bottle  1  configured as shown in  FIG. 1 . The bottle  1  is made by blow forming a polyethylene terephthalate (PET) material. As shown in  FIG. 1 , the bottle  1  is made up of an opening  2 , which opens upwardly, a hollow body part  4 , which is continuous with a lower end of the opening  2  through an expanded diameter shoulder part  3 , and a bottom part  5 , which closes a lower end of the body part  4 . 
     A threaded portion  7 , to which a cap  6  (see  FIG. 10 ) is threadably attached, is formed on the opening  2 . A flange  8 , which expands outwardly around the outer periphery of the threaded portion  7 , is formed in a lower part of the threaded portion  7 . A neck part  9  is formed between the flange  8  and the shoulder part  3 . 
     A ring-shaped ground portion  10  is formed on an outer peripheral side of the bottom part  5 . An inversion part  11 , which projects outwardly (downwardly) along an axis of the body part  4 , is formed inside of the ground portion  10 . The inversion part  11  comprises an inclined portion  12 , which can be inverted inwardly and outwardly of the body part  4  between a convex shape and a concave shape which are symmetrical, and an inward projecting portion  13  formed in an area (a central portion of the bottom part  5 ) surrounded by the inclined portion  12  and formed so as to project inwardly of the body part  4 . A first hinge section  14  is disposed in an annular shape at an outer peripheral edge of the inclined portion  12 . A second hinge section  15  is disposed in an annular shape at an inner peripheral edge (i.e., at the border between the inclined portion  12  and the inward projecting portion  13 ) of the inclined portion  12 . The inclined portion  12  is inverted between the convex and concave shapes by bending of the first hinge section  14  and the second hinge section  15 . On the other hand, the inward projecting portion  13  is not inverted but is only moved up and down in conjunction with inversion of the inclined portion  12 . The shape of the inward projecting portion  13  is thus retained. Furthermore, in order to preserve strength, a plurality of beads  16  are formed on the body part  4 . Moreover, although not shown in the drawings, a reduced pressure absorbing panel may be formed on the body part  4 . 
     The inversion part  11  of the bottle  1  projects outwardly (downwardly) from the body part  4  at least before the bottle  1  is injected into a filler. Such a bottle  1  is obtained by blow forming the material such that the inversion part  11  projects outwardly in a mold (not shown in the drawings). The bottles  1  formed with the inversion part  11  thus projecting outwardly are, for example, carried into a filler in line. This eliminates an operation process carried out for a bottle into which the inversion part  11  is recessed inwardly, to project the inversion part  11  outwardly before injecting the bottle  1  into the filler. The bottle  1  is thus advantageous in terms of efficiency and costs. 
     First, a first embodiment of the present invention will be described. 
     A device according to the first embodiment produces a content filling bottle with contents such as a drink filled therein. A part of the device comprises auxiliary tool installing means  17 , shown in  FIG. 2 , and bottom part recessing means  18  and auxiliary tool separating means  19 , which are shown in  FIG. 3 . 
     Although not shown in the drawings, the filler and a capper  20  (shown in  FIG. 2  by an alternate long and short dash line) are provided upstream of the auxiliary tool installing means  17 ; the filler is content filling means for filling the contents into the bottle  1  (see  FIG. 1 ), the content filling means being configured in a well-known manner, and the capper  20  is sealing means for sealing the bottle  1  with a cap  6 , the sealing means being configured in a well-known manner. 
     As is well-known, the filler performs either hot filling in which heated liquid contents in a high temperature state are filled or aseptic filling in which liquid contents at the ordinary temperature after sterilization are filled. For the hot filling, a rinser, which washes the interior of the bottle  1 , is provided upstream of the filler. For the aseptic filling, a sterilization treatment device for the bottle  1  is provided upstream of the filler. Furthermore, for the aseptic filling, an upstream side including at least the capper  20  is set in a sterile environment. 
     Now, an essential part of the device according to the first embodiment will be described. As shown in  FIG. 2 , a filled bottle injection turret  21  and an auxiliary tool injection turret  22  are provided upstream of the auxiliary tool installing means  17 ; the bottle  1  (hereinafter referred to as the filled bottle) discharged from the capper  20 , with the contents filled therein and with the opening  2  sealed with the cap  6 , is injected into the filled bottle injection turret  21 . 
     The example shown in  FIG. 2  is suitable for the hot filling; the capper  20  and the filled bottle injection turret  21  of the auxiliary tool installing means  17  are installed adjacent to each other. However, for the aseptic filling, the effect of outer air on a discharge side of the capper  20  in the sterile environment is taken into account. That is, for the aseptic filling, although not shown in the drawings, the capper  20  is in the sterile atmosphere as described above so that devices constituting the capper  20  are kept sterile. On the discharge side of the capper  20 , a position where the sterile atmosphere contacts the outer air is located as far from the devices constituting the capper  20  as possible to inhibit the outer air from mixing into the sterile atmosphere. By way of a specific example, a plurality of discharge turrets are disposed on the discharge side of the capper  20  toward a downstream side to provide a relatively long discharge conduit for the capper  20 . Thus, the sterile atmosphere extends down to a terminal end of the discharge conduit, along which the plurality of discharge turrets are provided. Thus, even when the sterile atmosphere contacts the outer air on the terminal end side of the discharge conduit, the sterile atmosphere on a start point side of discharge conduit is prevented from being affected by the outer air. The devices constituting the capper  20  are thus kept sterile. On the other hand, for the hot filling, the capper  20  is prevented from being affected by the mixture of the outer air. Thus, as shown in  FIG. 2 , the capper  20  and the filled bottle injection turret  21  of the auxiliary tool installing means  17  are provided adjacent to each other. 
     As partly shown in  FIG. 13(   a ), the filled bottle injection turret  21  comprises a retaining section  23 , which retains a lower half of the filled bottle  1 , and a regulating plate  24 , which prevents the filled bottle  1  from slipping out in the retaining section  23 . The filled bottle injection turret  21  injects the filled bottle  1  discharged from the capper  20 , into the auxiliary tool installing means  17 . As shown in  FIG. 2 , the auxiliary tool injection turret  22  is connected to a terminal end of the auxiliary tool injection conduit  26 , which comprises a screw conveyor  25 , to inject an auxiliary tool  27  into the auxiliary tool installing means  17 . A discharge turret  28  and a discharge conveyor  29  are provided downstream of the auxiliary tool installing means  17  to discharge the filled bottle  1  with the auxiliary tool  27  installed thereon. The discharge conveyor  29  transports the filled bottle  1  with the auxiliary tool  27  installed thereon to the bottom part recessing means  18 , shown in  FIG. 3 . 
     The auxiliary tool  27  is cylindrically formed of a comparatively hardened synthetic resin material, and is installable onto the bottle  1  so as to extend from a lower end of the body part  4  of the bottle  1  to cover the bottom part  5  of the bottle  1 . As shown in  FIGS. 4 and 5 , the auxiliary tool  27  is formed by a peripheral wall  30  and a bottom part supporting section  31 . Bead engaging pawls  32  are provided on the peripheral wall  30  of the auxiliary tool  27 ; the bead engaging pawls  32  project inwardly and are engageable with and disengageable from the lowermost positioned beads  16  formed in the body part  4 . The bead engaging pawls  32  engage elastically with the beads  16  of the bottle  1  through peripheral cuts  33 . An opening part  34  is formed in the bottom part supporting section  31  of the auxiliary tool  27  at a position corresponding to the inversion part  11  of the bottle  1 . An annular engagement groove  35  is formed on an outer peripheral surface of the auxiliary tool  27 . The auxiliary tool  27  according to the first embodiment has the cylindrical shape corresponding to the shape of the bottle  1 . However, if for example, the bottle is shaped like a polygonal prism, the auxiliary tool  27  is correspondingly shaped like a polygonal tube. 
     As shown in  FIG. 6 , the auxiliary tool installing means  17  comprises a support pillar  37 , which is disposed upright on a base  36 , a drive gear  38 , which is supported rotatably on the support pillar  37 , and a turntable  39 , which rotates integrally with the gear  38 . A top panel  40  is supported rotatably on an upper end of the support pillar  37 . The top panel  40  and the turntable  39  are connected together integrally by a plurality of vertically extending guide rods  41 . The gear  38  is connected to rotary driving means such as a motor (not shown in the drawings). 
     The auxiliary tool installing means  17  comprises a filled bottle chuck  42 , which is fixed to and supported by the guide rods  41 , and an auxiliary tool support table  43 , which is supported below the filled bottle chuck  42  by the guide rods  41  so as to be capable of being raised and lowered. 
     As shown in  FIG. 7 , the filled bottle chuck  42  comprises a base block  44 , which is fixedly supported on the guide rods  41 , and a pair of claw members  45 , which are openably and closably supported on the base block  44 . A pinion gear  46  is disposed outside the base block  44  of the filled bottle chuck  42 . As shown in  FIG. 6 , the pinion gear  46  meshes with a rack  47 , which is disposed so as to be capable of being raised and lowered along the guide rod  41 . As shown in  FIG. 7 , the pinion gear  46  drives an opening and closing mechanism (not shown in the drawings), which is contained in the base block  44  via a rotating shaft  48 . The pinion gear  46  rotates in response to rising and lowering of the rack  47 , thus opening and closing the claw members  45 . As shown in  FIG. 6 , the rack  47  comprises a cam follower  49 , which is guided by a cam rail  50  disposed on an outer periphery of the support pillar  37 , to raise and lower the rack  47 . As shown in  FIG. 8 , the claw members  45  of the filled bottle chuck  42  externally grip the neck part  9  of the filled bottle  1 . 
     As shown in  FIGS. 6 and 8 , the auxiliary tool support table  43  comprises an auxiliary tool loading section  51 , on which the auxiliary tool  27  injected by the auxiliary tool injection turret  22  (see  FIG. 2 ) is loaded, and a raising and lowering block  52 , which is supported on the guide rod  41  so as to be capable of being raised and lowered along the guide rod  41 . As shown in  FIG. 6 , the raising and lowering block  52  comprises a cam follower  53 , which is guided by a cam rail  54  disposed on an outer periphery of the support pillar  36 , to raise and lower the auxiliary tool loading section  51 . The auxiliary tool support table  43  rises toward the bottom part  5  of the filled bottle  1  retained by the filled bottle chuck  42 , to install the auxiliary tool  27  loaded on the auxiliary tool loading section  51 , on the filled bottle  1 . 
     Now, the bottom part recessing means  18  and the auxiliary tool separating means  19  will be described. As shown in  FIG. 3 , the bottom part recessing means  18  and the auxiliary tool separating means  19  are disposed adjacent to each other. The auxiliary tool separating means  19  is connected to a downstream side of the bottom part recessing means  18  through a filled bottle transfer turret  55 . A filled bottle injection turret  56  is disposed upstream of the bottom part recessing means  18 . The filled bottle injection turret  56  is connected to a terminal end of a filled bottle injection conduit  58 , which comprises a screw conveyor  57 , to inject, into the bottom part recessing means  18 , the filled bottle  1  discharged from the auxiliary tool installing means  17  and having the auxiliary tool  27  installed thereon. A filled bottle discharge turret  59 , a first auxiliary tool discharge turret  60 , and a second auxiliary tool discharge turret  61  are disposed downstream of the auxiliary tool separating means  19 . A start point of a filled bottle discharge conveyor  62  is connected to the filled bottle discharge turret  59 . A start point of an auxiliary tool discharge conveyor  63  is connected to the second auxiliary tool discharge turret  61 . 
     As shown in  FIG. 9 , the bottom part recessing means  18  comprises a support pillar  65  disposed upright on a base  64 , a drive gear  66 , which is rotatably supported on the support pillar  65 , and an outer tubular support body  67 , which rotates integrally with the gear  66 . A filled bottle support table  68  is disposed integrally with the outer tubular support body  67 . A plurality of first guide rods  69  are disposed on the filled bottle support table  68  so as to extend upwardly therefrom. A plurality of second guide rods  70  are disposed on the filled bottle support table  68  so as to extend downwardly therefrom. A top plate  71  is supported integrally on upper ends of the first guide rods  69 . The gear  66  is connected to rotary driving means (not shown in the drawings) such as a motor. 
     The filled bottle support table  68  comprises a plurality of filled bottle loading sections  72 , in each of which an opening part  73  corresponding to the inversion part  11  of the filled bottle  1  is formed so as to penetrate the loading section  72  in the vertical direction. 
     A shoulder part presser  74  is supported on the first guide rod  69  so as to be capable of being raised and lowered along the first guide rod  69 . The shoulder part presser  74  comprises a cam follower  75 , which is guided by a cam rail  76 , disposed on an outer periphery of the support pillar  65 , to raise and lower the shoulder part presser  74 . As shown in  FIG. 10 , the shoulder part presser  74  comprises a pressing concave part  77  with a shape corresponding to the shoulder part  3  of the filled bottle  1 . As shown in a plan view in  FIG. 11 , the shoulder part presser  74  comprises an insertion hole  78 , through which the opening  2  with the cap  6  fitted thereon is capable of being inserted. 
     As shown in  FIG. 9 , an activator punch  79  is supported on the second guide rod  70  so as to be capable of being raised and lowered along the second guide rod  70 . As shown in  FIG. 10 , the activator punch  79  is connected to an upper end of a raising and lowering shaft  80 , which is retained in a guide tube  81  so as to be capable of being raised and lowered through a shock absorbing spring  82 . A pushup abutment section  83  with a shape corresponding to the inclined portion  12  and inward projecting portion  13  of the inversion part  11  is formed at a tip end of the activator punch  79 . The guide tube  81  is connected to a slide block  84 , which is slidably retained on the second guide rod  70 . The slide block  84  comprises a cam follower  85 , which is guided by a cam rail  87  in a tubular wall plate  86 , to raise and lower the activator punch  79 ; the tubular wall plate  86  is fixed to the periphery of the support pillar  65  with a gap between the tubular wall plate  86  and the support pillar  65  as shown in  FIG. 9 . In the first embodiment, as shown in  FIG. 10 , the shape of the pushup abutment section  83  is shown to correspond to the inclined portion  12  and inward projecting portion  13  of the inversion part  11 . However, for example, although not shown in the drawings, the pushup abutment section  83  may be shaped so as to abut peripherally against a part of the inclined portion  12 . 
     The activator punch  79  is disposed below each of the filled bottle loading sections  72  of the filled bottle support table  68 . When rotated around the support pillar  65 , the activator punch  79  is guided by the cam rail  87  to rise through the opening part  73  of the filled bottle loading section  72 . Thus, a tip end of the activator punch  79  pushes up the inversion part  11  projecting downwardly from the filled bottle  1 . The inversion part  11  is recessed inwardly into the filled bottle  1 . At this time, the shock absorbing spring  82 , which is provided in the interior of the guide tube  81 , prevents an excessive pushing force from the activator punch  79  from being exerted on the inversion part  11 . The inversion part  11  is thus reliably prevented from being damaged. Furthermore, the pushup abutment section  83 , which is provided at the tip end of the activator punch  79 , enables the inversion part  11  to be reliably recessed inwardly into the filled bottle along the recessed shape thereof. The bottom part  5  can thus be reliably prevented from being inadvertently deformed, allowing the inversion part  11  to be smoothly recessed inwardly into the filled bottle. In  FIGS. 9 and 10 , reference numeral  88  indicates a holder that laterally supports the filled bottle  1 . 
     As shown in  FIG. 9 , the auxiliary tool separating means  19  comprises a support pillar  89 , which is disposed upright on the base  64 , a drive gear  90 , which is rotatably supported on the support pillar  89 , and an outer tubular support body  91 , which rotates integrally with the gear  90 . A flange-shaped projecting portion  92  is provided on an outer periphery of an upper end of the outer tubular support body  91 . A plurality of first guide rods  93  are disposed on the projecting portion  92  so as to extend upwardly therefrom. A plurality of second guide rods  94  are disposed on the projecting portion  92  so as to extend downwardly therefrom. A top plate  95  is supported integrally on upper ends of the first guide rods  93 . The gear  90  is rotated via a drive gear  96  of the filled bottle transfer turret  55  in synchronism with the gear  66  of the bottom part recessing means  18 , described above. 
     A filled bottle chuck  97  is fixedly supported on the first guide rod  93 . The filled bottle chuck  97  comprises a pair of claw members  98  which open and close. The filled bottle chuck  97  has a configuration similar to that of the filled bottle chuck  42  of the auxiliary tool installing means  17 , described above, and the detailed description of the filled bottle chuck  97  is thus omitted. 
     As shown in  FIG. 9 , an auxiliary tool connection member  99  is supported on the second guide rod  94  so as to be capable of being raised and lowered along the second guide rod  94 . The auxiliary tool connection member  99  comprises a cam follower  100 , which is guided by a cam rail  102  in a tubular wall plate  101 , to raise and lower the auxiliary tool connection member  99 ; the tubular wall plate  101  is disposed around the periphery of the support pillar  89  with a gap between the tubular wall plate  101  and the support pillar  89 . As shown in  FIG. 12 , the auxiliary tool connection member  99  comprises a projection  103 , which engages with an engagement groove  35  formed in an outer peripheral surface of the auxiliary tool  27 . The auxiliary tool connection member  99  rises toward the auxiliary tool  27  to engage the projection  103  with the engagement groove  35 . The auxiliary tool connection member  99  then lowers with the engagement state maintained, to separate the auxiliary tool  27  from the filled bottle  1 . As shown in  FIG. 3 , the filled bottle  1  and auxiliary tool  27  separated from each other are transferred to the filled bottle discharge turret  59  and the first auxiliary tool discharge turret  60 , respectively. The filled bottle  1  and auxiliary tool  27  are then discharged. 
     The device configured as described above according to the first embodiment produces the content filling bottle as described below. That is, although not shown in the drawings, the filler fills liquid contents into the interior of the empty bottle  1  with the inversion part  11  inversely projecting downwardly as shown in  FIG. 1  (content filling step). The capper  20  fits the cap  6  on the opening  2  of the filled bottle  1  with the liquid contents filled therein, to seal the filled bottle  1  (sealing step). The operations in the filler and the capper  20  are performed with the neck part  9  of the empty bottle  1  gripped and transported and without the need to make the empty bottle  1  self-standing. The filling and sealing operations can be performed without any problem even when the bottle is blow-formed such that the inversion part  11  inversely projects downwardly as shown in  FIG. 1 . 
     Then, the auxiliary tool installing means  17 , shown in  FIGS. 2 and 6 , installs the auxiliary tool  27  on the bottom part  5  of the filled bottle  1  (auxiliary tool installing step). Subsequently, the bottom part recessing means  18 , shown in  FIGS. 3 and 9 , presses up the inversion part  11  projecting downwardly from the filled bottle  1 , to invert and recess the inversion part  11  inwardly into the bottle  1  as shown in  FIG. 10  (bottom part recessing step). Then, the auxiliary tool separating means  19 , shown in  FIG. 12 , separates the auxiliary tool  27  from the filled bottle  1  with the inversion part  11  inwardly recessed (auxiliary tool separating step). 
     Now, the operation of each part or section will be described in detail. First, the filled bottle  1  retained by the filled bottle injection turret  21  is injected into the auxiliary tool installing means  17  as shown in  FIG. 13(   a ), and is gripped by the filled bottle chuck  42  of the auxiliary tool installing means  17  for delivery, as shown in  FIG. 13(   b ). The filled bottle chuck  42  externally grips the neck part  9  of the filled bottle  1 . After the delivery of the filled bottle  1  is completed, raising of the auxiliary tool support table  43  with the auxiliary tool  27  loaded thereon is started as shown in  FIG. 13(   c ). With the auxiliary tool support table  43  raised, the auxiliary tool  27  is installed on the bottom part  5  of the filled bottle  1  retained by the filled bottle chuck  42 , as shown in  FIG. 13(   d ). Subsequently, the retention of the filled bottle  1  by the filled bottle chuck  42  is canceled. The filled bottle  1  is then delivered to the discharge turret  28 , shown in  FIG. 2 , for discharge. The discharged filled bottle  1  is then injected into the bottom part recessing means  18 , shown in  FIG. 3 . 
     In the bottom part recessing means  18 , first, the filled bottle  1  is loaded on the filled bottle support table  68  as shown in  FIG. 14(   a ). Then, as shown in  FIG. 14(   b ), the shoulder part presser  74  lowers to press, from above, the shoulder part  3  of the filled bottle  1  loaded on the filled bottle support table  68 . This positions the filled bottle  1  such that the bottle  1  is inhibited from moving upwardly. With the filled bottle  1  kept positioned as described above, as shown in  FIG. 14(   c ), the activator punch  79  is raised to allow the tip end of the activator punch  79  to push up the projecting inversion part  11  of the filled bottle  1  so that the inversion part  11  is inwardly recessed. At this time, as shown in  FIG. 10 , the pushup abutment section  83  of the activator punch  79  inwardly recesses the inversion part  11  along the recessed shape thereof. Thus, the bottom part  5  can be reliably prevented from being inadvertently deformed, allowing the inversion part  11  to be inwardly recessed smoothly. Moreover, the filled bottle  1  is positioned by the shoulder part presser  74 , and the auxiliary tool  27  sufficiently regulates the deformation of the bottom part  5  toward the outer periphery of the bottle. Consequently, the pushup abutment section  83  of the activator punch  79  abuts accurately against the inclined portion  12  and inward projecting portion  13  of the inversion part  11 . Furthermore, the inversion part  11  can be reliably inwardly recessed without inadvertently deforming the bottom part  5 . Subsequently, as shown in  FIG. 14(   d ), the activator punch  79  is lowered below the filled bottle support table  68 . The shoulder part presser  74  is raised to deliver the filled bottle  1  to the filled bottle transfer turret  55  as shown in  FIG. 3 . The filled bottle transfer turret  55  transfers the filled bottle  1  to the auxiliary tool separating means  19 . 
     In the auxiliary tool separating means  19 , the filled bottle  1  transferred by the filled bottle transfer turret  55  is retained by the filled bottle chuck  97  as shown in  FIG. 15(   a ). At this time, the filled bottle chuck  97  externally grips the neck part  9  of the filled bottle  1 . Then, as shown in  FIG. 15(   b ), the auxiliary tool connection member  99  is raised and connected to the auxiliary tool  27  installed on the filled bottle  1 . Then, as shown in  FIG. 15(   c ), the auxiliary tool connection member  99  is lowered, and the auxiliary tool  27  installed on the filled bottle  1  is lowered and separated from the filled bottle  1 . Subsequently, as shown in  FIG. 3 , the auxiliary tool  27  is delivered to the first auxiliary tool discharge turret  60 , which then discharges the auxiliary tool  27 . The retention of the filled bottle  1  by the filled bottle chuck  97  is canceled. The filled bottle  1  is delivered to the filled bottle discharge turret  59 , which discharges the filled bottle  1 . 
     Now, a second embodiment of the present invention will be described. 
     A device according to the second embodiment produces a content filling bottle with contents such as a drink filled therein. The device according to the second embodiment comprises bottom part recessing means  217 , shown in  FIG. 16 , as an essential part. 
     Although not shown in the drawings, a filler and a capper (not shown in the drawings) are disposed upstream of the bottom part recessing means  217 ; the filler is content filling means of a well-known configuration for filling the contents into the bottle  1  (see  FIG. 1 ), and the capper is sealing means of a well-known configuration for sealing the bottle  1  with the cap  6 . 
     In the second embodiment, the aseptic filling is performed, in which the sterilized liquid contents at the ordinary temperature are filled into the bottle. As is well known, a sterilization treatment device for the bottle  1  is provided upstream of the filler to set an upstream side including the capper in a sterile environment. 
     Here, a part of a discharge conduit connected to a bottle discharge side of the capper is defined by an alternate long and short dash line and shown at reference numeral  218 , in  FIG. 16 . The discharge conduit  218  is provided taking the effects of outer air on the discharge side of the capper in the sterile environment. That is, for the aseptic filling, although not shown in the drawings, the capper is in the sterile atmosphere as described above so that devices constituting the capper are kept sterile. On the discharge side of the capper, a position where the sterile atmosphere contacts the outer air is located as far from the devices constituting the capper as possible to inhibit the outer air from mixing into the sterile atmosphere. A plurality of discharge turrets are disposed on the discharge side of the capper toward a downstream side to provide a relatively long discharge conduit  218  for the capper. Thus, the sterile atmosphere extends down to a terminal end of the discharge conduit  218 , along which the plurality of discharge turrets are provided. Thus, even when the sterile atmosphere contacts the outer air on the terminal end side of the discharge conduit  218 , the sterile atmosphere on a start point side of the discharge conduit  218  is prevented from being affected by the outer air. The devices constituting the capper are thus kept sterile. 
     Now, an essential part of the device according to the second embodiment will be described. As shown in  FIG. 16 , a filled bottle injection turret  219  is provided upstream of the bottom part recessing means  217  so that the bottle  1  (hereinafter referred to as the filled bottle) with the contents filled therein and with the opening  2  sealed with the cap  6  is injected into the filled bottle injection turret  219 . 
     As partly shown in  FIG. 21(   a ), the filled bottle injection turret  219  comprises a retaining section  220 , which retains the lower half of the filled bottle  1 , and a regulating plate  221 , which prevents the filled bottle  1  from slipping out in the retaining section  220 . The filled bottle injection turret  219  injects, into the bottom part recessing means  217 , the filled bottle  1  discharged through the discharge conduit  218  for the capper, not shown in the drawings, with the neck part  9  of the filled bottle  1  retained by a bottle chuck  222 . A discharge turret  223  and a discharge conveyor  224 , which discharge the filled bottle  1 , are provided downstream of the bottom part recessing means  217 . 
     As shown in  FIG. 17 , the bottom part recessing means  217  comprises a support pillar  226 , which is disposed upright on a base  225 , a drive gear  227 , which is supported rotatably on the support pillar  226 , and a turntable  228 , which rotates integrally with the gear  227 . A top panel  229  is supported rotatably on an upper end of the support pillar  226 . The top panel  229  and the turntable  228  are connected together integrally by a plurality of vertically extending guide rods  230 . The gear  227  is connected to rotary driving means such as a motor (not shown in the drawings). 
     The bottom part recessing means  217  comprises a filled bottle chuck  231  (body part gripping means), which is fixed to and supported by the guide rods  230 , and a bottle support table  232  (bottom part supporting means), which is supported below the filled bottle chuck  231  by the guide rods  230  so as to be capable of being raised and lowered. The filled bottle chuck  231  and the bottle support table  232  constitute bottle retaining means according to the present invention. 
     As shown in  FIG. 18 , the filled bottle chuck  231  comprises a base block  233 , which is fixedly supported on the guide rods  230 , and a pair of gripping members  234 , which are openably and closably supported on the base block  233 . A pinion gear  235  is disposed outside the base block  233  of the filled bottle chuck  231 . As shown in  FIG. 17 , the pinion gear  235  meshes with a rack  236 , which is disposed so as to be capable of being raised and lowered along the guide rod  230 . As shown in  FIG. 18 , the pinion gear  235  drives an opening and closing mechanism (not shown in the drawings), which is contained in the base block  233  via a rotating shaft  237 . The pinion gear  235  rotates in response to rising and lowering of the rack  236 , thus opening and closing the gripping members  234 . As shown in  FIG. 17 , the rack  236  comprises a cam follower  238 , which is guided by a cam rail  239  disposed on an outer periphery of the support pillar  226 , to raise and lower the rack  236 . 
     As shown in  FIG. 19 , the gripping members  234  of the filled bottle chuck  231  comprises an engaging convex part  240 , which engages with the bead  16  located at the uppermost position on the body part  4  of the filled bottle  1 . A pressing concave part  241  with a shape corresponding to the shoulder part  3  of the filled bottle  1  is formed above the engaging convex part  240 . Thus, with the gripping members  234  closed, the filled bottle chuck  231  maintains a firm gripping state in which the filled bottle chuck  231  externally enclose and support the area covering the outer periphery of the body part  4  of the bottle  1  and a top surface of the shoulder part  3  of the bottle  1 . 
     As shown in  FIGS. 17 and 20 , the bottle support table  232  comprises a bottle loading section  242 , on which the filled bottle  1  is loaded, and a raising and lowering block  243 , which is supported on the guide rod  230  so as to be capable of being raised and lowered along the guide rod  230 . As shown in  FIG. 17 , the raising and lowering block  243  comprises a cam follower  244 , which is guided by a cam rail  245  disposed on an outer periphery of the support pillar  226 , to raise and lower the bottle loading section  242 . As shown in  FIG. 20 , a supporting concave part  246  and an opening part  247  are formed on the bottle loading section  242 ; the supporting concave part  246  corresponds to the bottom part  5  of the filled bottle  1 , and a lower portion of the opening part  247  corresponding to the inversion part  11  is open. The bottle support table  232  rises toward the bottom part  5  of the filled bottle  1  retained by the filled bottle chuck  231 , to load the filled bottle  1  on the bottle loading section  242 . 
     As shown in  FIG. 17 , an activator punch  248  is supported on the guide rod  230  of the bottom part recessing means  217  so as to be capable of being raised and lowered along the guide rod  230 . As shown in  FIG. 20 , the activator punch  248  is connected to an upper end of a raising and lowering shaft  249 , which is retained in a guide tube  250  so as to be capable of being raised and lowered through a shock absorbing spring  251 . A pushup abutment section  252  with a shape corresponding to the inclined portion  12  and inward projecting portion  13  of the inversion part  11  is formed at a tip end of the activator punch  248 . As shown in  FIG. 17 , the guide tube  250  is connected to a slide block  253 , which is slidably retained on the guide rod  230 . The slide block  253  comprises a cam follower  254 , which is guided by a cam rail  255  provided on an outer periphery of the support pillar  226 , to raise and lower the activator punch  248 . In the second embodiment, the shape of the pushup abutment section  252  is shown to correspond to the inclined portion  12  and inward projecting portion  13  of inversion part  11 . However, for example, although not shown in the drawings, the pushup abutment section  252  may be shaped so as to abut peripherally against a part of the inclined portion  12 . 
     The activator punch  248  is disposed below each of the bottle loading sections  242  of the bottle support table  232 . When rotated around the support pillar  226 , the activator punch  248  is guided by the cam rail  255  to rise through the opening part  247  of the bottle loading section  242 . Thus, a tip end of the activator punch  248  pushes up the inversion part  11  projecting downwardly from the filled bottle  1 . The inversion part  11  is thus recessed inwardly into the filled bottle  1 . At this time, the shock absorbing spring  251 , which is provided in the interior of the guide tube  250 , prevents an excessive pushing force from the activator punch  248  from being exerted on the inversion part  11 . The inversion part  11  is thus reliably prevented from being damaged. Furthermore, the pushup abutment section  252 , which is provided at the tip end of the activator punch  248 , enables the inversion part  11  to be reliably recessed inwardly into the filled bottle along the recessed shape thereof. The bottom part  5  can thus be reliably prevented from being inadvertently deformed, allowing the inversion part  11  to be smoothly recessed inwardly into the filled bottle. Furthermore, when the activator punch  248  pushes up the inversion part  11 , the bottom part  5  of the filled bottle  1 , which is regulated by the supporting concave part  246  of the bottle loading section  242 , is reliably prevented from being inadvertently deformed. 
     With the bottom part recessing means  217 , configured as described above, the adoption of the filled bottle injection turret  219  eliminates the need for a conventional conveyor that makes the filled bottle  1  self-standing during injection. Furthermore, the provision of the bottle support table  232  eliminates the need to install an auxiliary tool or the like on the bottom part  5  of the filled bottle  1  as a self-standing auxiliary tool. This in turn eliminates the need for a conventional mechanism for installing and removing the auxiliary tool, a conventional mechanism for carrying in and out the auxiliary tool, and the like. As a result, the bottom part recessing means  217  can be formed to be very compact, enabling a reduction in required installation space. 
     The device configured as described above according to the second embodiment produces the content filling bottle as described below. That is, although not shown in the drawings, the filler fills liquid contents into the interior of the empty bottle  1  with the inversion part  11  inversely projecting downwardly as shown in  FIG. 1  (content filling step). The capper fits the cap  6  onto the opening  2  of the filled bottle  1  with the liquid contents filled therein, to seal the filled bottle  1  (sealing step). The operations in the filler and the capper are performed with the neck part  9  of the empty bottle  1  gripped and transported and without the need to make the empty bottle  1  self-standing. The filling and sealing operations can be performed without any problem even when the bottle is blow-formed such that the inversion part  11  inversely projects downwardly as shown in  FIG. 1 . 
     Then, the bottom part recessing means  217 , shown in  FIGS. 16 and 17 , presses up the inversion part  11  projecting downwardly from the filled bottle  1 , to invert and recess the inversion part  11  inwardly into the bottle  1  as shown in  FIG. 20  (bottom part recessing step). First, the filled bottle  1  retained by the filled bottle injection turret  219  is injected into the bottom part recessing means  217  as shown in  FIG. 21(   a ), and is gripped by the filled bottle chuck  231  for delivery, as shown in  FIG. 21(   b ). After the delivery of the filled bottle  1  is completed, the bottle support table  232  is raised to load the filled bottle  1  on the bottle loading section  242  as shown in  FIG. 21(   c ). Thus, the filled bottle  1  is sandwichingly held at the upper and lower positions thereof by the filled bottle chuck  231  and the bottle support table  232 , respectively. The filled bottle  1  is thus positioned so as to be prevented from moving upwardly. 
     With the filled bottle  1  kept positioned as described above, as shown in  FIG. 21(   d ), the activator punch  248  is raised to allow the tip end of the activator punch  248  to push up the projecting inversion part  11  of the filled bottle  1  so that the inversion part  11  is inwardly recessed. At this time, as shown in  FIG. 20 , the pushup abutment section  252  of the activator punch  248  inwardly recesses the inversion part  11  along the recessed shape thereof. Thus, the bottom part  5  can be reliably prevented from being inadvertently deformed, allowing the inversion part  11  to be inwardly recessed smoothly. Moreover, the filled bottle  1  is positioned by the filled bottle chuck  231 , and the supporting concave part  246  of the bottle loading section  242  sufficiently regulates the deformation of the bottom part  5  toward the outer periphery of the bottle. Consequently, the pushup abutment section  252  of the activator punch  248  abuts accurately against the inclined portion  12  and inward projecting portion  13  of the inversion part  11 . Furthermore, the inversion part  11  can be reliably inwardly recessed without inadvertently deforming the bottom part  5 . Subsequently, although not shown in the drawings, the activator punch  248  is lowered below the bottle support table  232 . The bottle support table  232  is then lowered and separated from the filled bottle  1 , which is thus retained by the filled bottle chuck  231 . Then, the retention of the filled bottle  1  by the filled bottle chuck  231  is canceled. The filled bottle  1  is thus delivered to the bottle discharge turret  223 , which discharges the filled bottle  1  via the discharge conveyor  224 . 
     In the second embodiment, the aseptic filling has been described, in which the sterilized liquid contents at the ordinary temperature are filled into the bottle. However, the hot filling may be performed, in which heated liquid contents in a high temperature state are filled into the bottle. In this case, a rinser, which washes the interior of the bottle  1 , is provided upstream of the filler. For the aseptic filling, a sterilization treatment device for the bottle  1  is provided upstream of the filler. 
     Industrial Applicability 
     The present invention provides a method and device for producing a content filling bottle obtained by filling liquid contents into the interior of a synthetic resin bottle including a bottom part a portion of which is formed to project outwardly in an axial direction of a body part thereof, the projecting portion being capable of being inverted and recessed inwardly into the body part. The present invention can efficiently produce a sanitary and high-quality content filling bottle.