JPH0826389A - Container holder - Google Patents

Abstract

PURPOSE:To secure a resistance torque for tightening a screw lid without deforming even a PET bottle which is flexible and likely to be deformed by holding a range close to a full periphery of a bottle side face by means of star wheels and two semicircular holding faces on a holder. CONSTITUTION:A bottle A is transferred to a capper 76 which has been carried by a transfer star wheel 74. The capper 76 fits a half circumference of a side face of the bottle A to a semicircular recess of a star wheel 79 while guiding an opposite side to advance the bottle to a lid tightening process. Further a holder 81 rotates with a horizontal axis as the center on a guide rail 84 while proceeding to a position D where the lid tightening process begins, and a roller 88 is engaged with a push cam. During the lid tightening process, the holder 81 is pushed by the push cam toward a rotation center of the star wheel 79, and two rubber plates 80 fixed to the star wheel 79 and to the holder 81 are concentric and form a circle of a diameter smaller than that of the bottle A, thereby generating pressing force to the bottle A with their tightening margin. The pressing force is adjusted by a shim 90.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container gripping device in a lid fastening device.

[0002]

2. Description of the Related Art An example of a conventional bottle gripping device is shown in FIGS.
Explaining with reference to FIG. 9, FIG. 6 is a front view showing a capper (lid clamper) to which the bottle gripping device is attached,
FIG. 7 is a plan view showing the pair of gripping bodies, and FIG. 8 is a perspective view showing the one gripping body (gripping arm) with a part thereof cut away. In this capper, a capper body 1 is rotatably provided on a base 2, and the capper body 1
In order to fit the cap to the bottle A (fasten the lid), a plurality of air chucks 3 for gripping the cap are provided with their gripping heads facing downward, around these upper members of the gripping heads. As shown in FIG. 6, gripping bodies 4 each consisting of a pair of gripping arms are provided at corresponding lower positions. The air chuck 3 and the two pairs of gripping bodies 4 which are partially omitted in FIG. It is shown. The pair of holding bodies 4 (holding arms 4a and 4b) are arranged symmetrically with respect to each other as shown in FIG. The pair of gripping arms 4a, 4b
Are the arm body 41 and the pair of movable pieces 49, 4 respectively.
9 ', and the arm body 41 has a base 4
2 is integrally fixed to a rotary drive shaft 5 provided in the capper body 1, and is rotated by the rotary drive of the rotary drive shaft 5. An external drive robot 6 which is a drive source for the pair of rotating pieces 49, 49 'is provided at a position adjacent to the base 2. The external drive robot 6 is equipped with a bendable arm 7, and a stepping driver 8 driven based on setting data (rotation direction, rotation angle) is attached to the tip of the arm 7. In addition, in FIG. 6, 9 indicates a cap feeder for sequentially supplying the cap to the gripping head portion of the air chuck 3, and 10 indicates a feed screw for sequentially supplying the bottle A, respectively.

Next, the gripping arm 4a will be described in detail. Since the pair of gripping arms 4a and 4b are configured symmetrically, one gripping arm 4a will be mainly described below. As shown in FIG. 8, a mounting hole 44 having a notch 43 in a base portion 42 of the arm body 41.
The arm body 41 is integrally fixed to the rotary drive shaft 5 by tightening the fixing bottle 45 through the attachment hole 44. In addition, reference numeral 11 in FIG. 7 denotes a reinforcing plate which is provided between the two rotary drive shafts 5 and 5 '. Further, a groove portion 47 is formed in the tip end portion 46 of the arm body 41, and the groove portion 47 has a pair of movable pieces 49, 48 having grip surfaces 48, 48 ′ whose inner surfaces are concave curved surfaces, respectively.
49 'is pivotably mounted on the support shafts 50, 50' with the gripping surfaces 48, 48 'facing each other. The variable gripping recess 51 is formed by the gripping surfaces 48, 48 'of the pair of movable pieces 49, 49'. The base ends of the pair of movable pieces 49, 49 'have teeth 52, 52' which mesh with each other.
The movable piece 49 'is rotated by rotating one movable piece 49' in the opposite direction. The shape of the variable grip recess 51 can be changed by turning the movable pieces 49, 49 'in opposite directions.

The movable piece 49 'is formed in such a direction that a gap between the distal ends of the pair of movable pieces 49, 49' is opened by a spring 53 installed between the distal end of the movable piece 49 'and the base 42 of the arm body 41. The surface of the movable piece 49 'opposite to the gripping surface 48' is brought into contact with one end of a spindle 54 provided on the arm body 41. The spindle 54 is slidably inserted into a through hole 55 formed in the arm main body 41, and a pin 56 is projectingly fixed to the other end of the spindle 54 by projecting to both sides of the other end. The pin 56 is slidably engaged with grooves 57 formed on the left and right sides of the through hole 55 to prevent the spindle 54 from rotating. A male screw 58 is formed on the outer peripheral surface of the spindle 54. The male screw 58 rotates a gear 60 rotatably housed in a housing 59 formed in the arm body 41 as shown in FIG. It is meshed with a female screw 61 formed at the center. The rotation of the gear 60 allows the spindle 54 to move back and forth toward the movable piece 49.
The tip of 9'can be opened and closed against the biasing force of the spring 53 or against it.

Further, the gear 60 is meshed with a gear 62, and the gear 62 is fixed to one end of an input shaft 64 rotatably mounted on a bearing 63 formed on the upper surface of the arm body 41. Further, a groove-shaped engaging portion 65 is formed at the other end of the input shaft 64, and the engaging portion 65 is detachably engaged with a tip end portion of a stepping driver 8 provided on the external drive robot 6. It is done. Then, by the spindle 54, the gears 60, 62 and the input shaft 64,
A drive transmission mechanism 66 for symmetrically pivoting the pair of movable pieces 49, 49 'is configured. The drive transmission mechanism 66 pivots the pair of movable pieces 49, 49' symmetrically, depending on the shape of the bottle. The shape (opening) of the variable grip recess 51 can be changed.

Next, the operation of the gripping device will be described. To grip the bottles A and A ', first, the pair of gripping arms 4 is used.
The variable gripping recesses 51, 51 of a and 4b, respectively, need to be adjusted to match the side shapes of the bottles A, A'which are gripped by them. Next, when the capper body 1 is turned and the gripping arm 4a is moved to the designated position,
The arm 7 of the external drive robot 6 is advanced, the tip of the stepping driver 8 is docked to the engaging portion 65 of the input shaft 64, the input shaft 64, and accordingly the gear 62 and the gear 60 are rotated by a predetermined amount, and the spindle 54 is passed through. Moving piece 4 along 55
Slide for a predetermined distance in the 9'direction. This spindle 54
Of the movable piece 49 'is swung by a predetermined angle in the closing direction against the urging force of the spring 53 by the sliding of the movable piece 49' toward the movable piece 49 '.
Is also swung by a predetermined angle in the closing direction via the teeth 52, 52 '. In this way, the two movable pieces 49, 49 'are each swung by a predetermined angle in the closing direction, and as a result, the variable grip recess 51 is adjusted so as to follow the side shape of the bottle A'. When the variable grip concave portion 51 is adjusted as described above, the motor for the stepping driver 8 is stopped, the docking between the tip of the stepping driver 8 and the engaging portion 65 of the input shaft 64 is released, and The operation of the drive robot 6 is released, and the adjustment of the movable grip concave portion 51 of the one grip arm 4a is completed. After the adjustment of the variable grip recess 51 of one grip arm 4a is completed as described above, the above steps are repeated to similarly adjust the variable grip recess 51 of the other grip arm 4b.

Then, after the adjustment of the variable grip concave portions 51 of the pair of gripping arms 4a and 4b is completed as described above, the rotary drive shafts 5 and 5 are respectively rotated in opposite directions to move the pair of gripping arms 4a and 4b. The grip arms 4a and 4b are shown in FIG.
The position shown by the two-dot chain line in FIG. 2 is rotated to the position shown by the solid line in FIG.
By grasping the bottle A '(two-dot chain line) by (two-dot chain line), the grasping operation of the bottle A'is completed. FIG. 9 shows an embodiment different from the above, which is a gripping body 67 for a bottle having a circular cross section.
And corresponds to the grip body 4 of the above-described embodiment.
The arm body 68 is fixed to the rotary drive shaft 5, a grip piece 69 is attached to the tip end thereof by a screw 70, and a soft rubber 71 is fixed to the concave portion of the grip piece 69, and the inner diameter is equal to the outer shape of the bottle. And the two arm bodies 7
When 1 is closed, it fits into the side of the bottle. If the outer diameter of the bottle is different, replace it with a gripping piece 69 that fits this bottle.

[0008]

When the container gripping device as described above is used and the container lid is a screw lid, the container having a male screw mouth is gripped and fixed by the gripping device. Then, the screw lid with the female screw is pressed against it with the air chuck of the lid tightening head to rotate and tighten (screw), but the tightening torque (tightening moment) at this time becomes considerably large, and the cross section of the container body becomes In the case of a circle or a polygon close to a circle, it is slippery and it is necessary to apply a sufficient pressing force to the grip surface. On the other hand, in the case of a glass container, there is no particular problem, but in the case of a resin container, such as a PET bottle, this pressing force deforms the bottle and the required resistance torque cannot be obtained, resulting in insufficient tightening of the screw lid. There is a drawback that the inner volume of the bottle changes due to deformation or deformation and the filling liquid spills. Also, in the case of handing over by arm, when the bottle is handed over and the clamping force of the arm is strengthened by prioritizing positioning,
If excessive force is applied to the bottle, and conversely the clamping force of the arm is weakened, the bottle will shake violently. When carrying a larger bottle, in the gripping body shown in FIG. 9, if the distance between the tips of the two gripping arms is made large, the bottle is easily deformed, and if it is made small, the arm is used to receive the bottle in a fixed position. It is necessary to widen the opening, and when a plurality of gripping bodies are arranged, the dimension in the opening direction becomes large, and there is a drawback that the device becomes large. INDUSTRIAL APPLICABILITY The present invention is applicable to a PET bottle that is soft and easily deformed, and provides a container gripping device that can obtain a sufficient resistance torque necessary for winding and tightening a screw lid, occupies a small area, and is easy to adjust. It is what

[0009]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a plurality of lid tightening heads arranged around a rotating shaft are provided, and the lid tightening heads are mounted on a container table which rotates integrally with the lid tightening heads. In a capper that fits or winds a lid to a container held right below, a star wheel that is detachably fixed to the upper side of the container base and has a plurality of semicircular concave gripping surfaces in the periphery, and A gripping body rotatably supported by a horizontal shaft provided at a right angle in the radial direction on the lower peripheral portion of the container base and having a semicircular concave gripping surface, and the gripping body engaging with the gripping body. The guide rail for rotating the container and the two semicircular concave gripping surfaces of the star wheel and the gripping body are concentric with each other when the gripping body faces the same star wheel, and are concentrically formed by arc-shaped elastic bodies. Form a circle slightly smaller than the outer diameter of And a removable elastic body attached to the container contact surface of the grip surface of the star wheel and the grip surface of the grip body, and the grip body is provided on the grip body. The pressing cam contacting the roller is pressed toward the center of the container base, and the gripping surface of the gripper is configured to adjust the position of the container base toward the center through a shim. ,
This is a means for solving the problem.

[0010]

The container sent to the capper is fitted with the concave portion of the semicircular gripping surface of the star wheel along the half circumference of the side surface, guided by the guide on the opposite side, and travels for a while to enter the lid tightening process area. It is sandwiched by the semicircular gripping surfaces of the gripping body that rotates from below and rises. When the pressing pressure is not enough, the gripping body is pushed by the pressing cam in the lid tightening process area, and the gripping surfaces of the star wheel and the gripping body form an inner diameter smaller than the outer shape of the container, so that the tightening margin is compressed and strong. A pressing force is generated to grip the container. The pressing force is adjusted by changing the thickness of the shim in order to adjust the position of the grip surface of the grip body toward the center of the container base. It should be noted that the gap between the two gripping surfaces of the star wheel and the gripping body can be made sufficiently small, and the container is gripped within a range close to the entire circumference of the side surface,
Even PET bottles that are soft and easily deformed do not deform,
The screw cap can be gripped so as to obtain a sufficient resistance torque required for tightening.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments of the drawings. FIGS. 1 to 5 show the embodiments of the present invention. First, FIG. 1 shows a capper 7 equipped with a bottle A gripping device of the present invention.
6 is a plan view showing the arrangement of 6; 74 is a transfer star wheel arranged between an upstream device, for example, a filling device (filler); 75 is an outlet star wheel arranged downstream;
76 is a capper. The bottle A is sandwiched by a semicircular recess provided on the outer peripheral portion of the transfer star wheel 74 and a guide (two-dot chain line), sent in the direction of the arrow L and handed over to the capper 76. While being wound, it advances in the direction of arrow N, and is then carried out in the direction of arrow N by the exit star wheel 75. FIG. 2 is a sectional view taken along line BB of FIG. In these figures, 77 is a capper 76.
Of the rotary shaft 77, 78 (see FIG. 2) is a container base on which the bottle A fixedly mounted on the rotary shaft 77 is placed to rotate, and 79 is a container base 78.
A star wheel that is detachably fixed to the upper side of the and has a plurality of semi-circular recesses on the outer peripheral portion, and 80 is the star wheel 7.
Although it is a soft rubber attachment that is attached to the concave portion of the gripping piece 89 and a gripping piece 89 to be described later, it is needless to say that another elastic body may be used as long as it can hold the bottle A. Rubber plate (elastic body) 80 is bottle A
The gripping surface has a semicircular shape (FIG. 3) having an inner diameter slightly smaller than the outer diameter of the bottle A, and the star wheel 79 can be replaced according to the outer diameter of the bottle A.

81 is a container base 78 via a bracket 82.
A gripping body, which is rotatably supported by a horizontal shaft 83 fixed at a right angle in the radial direction on the lower side of the star wheel 79, forms a pair with the semicircular concave shape of the star wheel 79 to grip the bottle A, and 84 is a gripping body. A bar-shaped guide rail for rotating the body 81, 85 is a mounting stay integrated with the guide rail 84, and 86 is a mounting ring fixed to the pedestal. 3 is a plan view of the grip body 81 as seen from above in FIG. 2, FIG. 4 is a bottom view of the lower portion of the grip body 81 as seen from below in FIG. 2, and FIG. 5 is a grip body 81 as seen from above right in FIG. FIG. In these figures, 8
Reference numeral 7 denotes a grip body main body, 88 denotes a roller rotatably attached to a pin projecting from the grip body main body 87, and 89 denotes a grip body main body 8
7 is a gripping piece screwed to the gripper via a shim 90, 91 is a T-shaped pin screwed to a gripping body 87, and 92 is a pin 9
Reference numeral 1 denotes a stepped cylindrical sliding piece externally fitted to the pin 1 so as to be rotatable and slidable, and 93 denotes a compression spring externally fitted to the pin 91. The gripping piece 89 has a semicircular concave gripping surface to which a rubber plate 80 is fixed similarly to the semicircular concave shape of the star wheel 79. The sliding piece 92 is made of a slippery resin such as Teflon, and the U groove is loosely fitted to the guide rail 84.
The bottom of the groove is always brought into contact with the guide rail 84 by the spring 93 so as to follow the curve of the guide rail 84 which changes three-dimensionally.

Next, the operation of the embodiment configured as described above will be described. The bottle A is a transfer star wheel 74.
It is delivered to the capper 76 carried by. Capper 7
In 6, the bottle A is fitted into the semicircular concave shape of the star wheel 79 on its side semicircle, and the opposite side is guided by a guide to proceed to the lid tightening process area. The grip body 81 is the star wheel 7.
In the C position (FIG. 1) where 9 receives the bottle A, the recumbent posture G
2 (indicated by a chain double-dashed line in FIG. 2), the guide rail 84 temporarily rotates the horizontal axis 83 (FIG. 2) while moving to the D position (FIG. 1) that enters the lid tightening process area. (In the counterclockwise direction), and in the D position, the upright posture H (the posture shown by the solid line in FIG. 2) is obtained, and the roller 88 engages with the push cam 94. Further, from the position D to the position E is the lid tightening process region, during which the grip body 81 is pushed by the push cam 94 in the direction of the rotation center of the star wheel 79, and
9 and the two rubber plates 80 fixed to the gripping body 81 concentrically form a circle having an inner diameter slightly smaller than the outer diameter of the bottle A, so that the tightening margin causes a pressing force to the bottle A. The pressing force can be adjusted by changing the tightening margin with the shim 90.

The gap between the two semicircular gripping surfaces of the star wheel 79 and the gripping body 81 (dimension d in FIG. 2) can be made sufficiently small, so that most of the outer periphery of the bottle is restrained and gripped. Therefore, even with a thin PET bottle, a strong pressing force can be applied without causing buckling deformation. While maintaining this state, the bottle A advances circumferentially within the lid tightening process area, during which the lid tightening head of the capper 76 (corresponding to the air chuck 3 of the conventional example) descends to tighten the screw lid. When leaving the lid tightening process area from the E position (FIG. 1), the grip body 81 is rotated clockwise by the guide rail 84 to return to the recumbent posture G at the F position (FIG. 1), the grip of the bottle A is released, and the outlet is exited. It is delivered to the star wheel 75 and sent to the next process. Further, the grip body 81 returns to the C position while maintaining the same posture. In addition, the rotation of the gripping body 81 is performed by the channel-shaped guide rail 100 shown by the alternate long and short dash line in FIG.
It can also be performed by engaging with the roller 88 provided on the grip body 81. Needless to say, the roller 88 and the pushing cam 94 can be omitted if the strength of the guide rail 84 is sufficient to receive the gripping force of the bottle.

[0015]

As described in detail above, according to the present invention, the two semicircular gripping surfaces of the star wheel and the gripping body grip the range close to the entire circumference of the side surface of the bottle, so that the bottle is soft and easily deformed. Even a PET bottle can be gripped without deforming so as to obtain a sufficient resistance torque necessary for winding and tightening the screw lid. Moreover, the pressing force of the gripping body against the container can be easily applied by changing the thickness of the shim arranged on the gripping body. Moreover, since the space between the gripping surfaces of the container between the star wheel and the gripping body can be narrowed, the area occupied by the gripping portion can be small. Furthermore, since the star wheel and the gripping body move as a unit, the adjustment is easy, the container is gripped securely, and no chain or the like is used. Therefore, maintenance of these is not necessary.

[Brief description of drawings]

FIG. 1 is a plan view of a capper equipped with a container gripping device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line BB of FIG.

3 is a plan view of the grip body in FIG. 1. FIG.

FIG. 4 is a bottom view of the grip body in FIG. 1.

5 is a perspective view of the grip body in FIG. 1 as viewed from the upper right.

FIG. 6 is a front view of a capper equipped with a conventional container gripping device.

FIG. 7 is a plan view of the grip body in FIG.

FIG. 8 is a perspective view of the grip body in FIG.

FIG. 9 is a plan view of another conventional gripping body.

[Explanation of symbols]

 3 Lid tightening head 76 Capper 77 Rotating shaft 78 Container 79 Star wheel 80 Rubber plate 81 Grip body 84 Guide rail 87 Grip body main body 89 Grip piece 90 Shim A Bottle

[Procedure amendment]

[Submission date] October 21, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

[0008]

When the container gripping device as described above is used and the container lid is a screw lid, the container having a male screw mouth is gripped and fixed by the gripping device. Then, the screw lid with the female screw is pressed against it with the air chuck of the lid tightening head to rotate and tighten (screw), but the tightening torque (tightening moment) at this time becomes considerably large, and the cross section of the container body becomes In the case of a circle or a polygon close to a circle, it is slippery and it is necessary to apply a sufficient pressing force to the grip surface. On the other hand, in the case of a glass container, there is no particular problem, but in the case of a resin container, such as a PET bottle, this pressing force deforms the bottle and the required resistance torque cannot be obtained, resulting in insufficient tightening of the screw lid. There is a drawback that the inner volume of the bottle changes due to deformation or deformation and the filling liquid spills. Also, in the case of handing over by arm, when the bottle is handed over and the clamping force of the arm is strengthened by prioritizing positioning,
If excessive force is applied to the bottle, and conversely the clamping force of the arm is weakened, the bottle will shake violently. When carrying a larger bottle, in the gripping body shown in FIG. 9, if the distance between the tips of the two gripping arms is made large, the bottle is easily deformed, and if it is made small, the arm is used to receive the bottle in a fixed position. It is necessary to widen the opening, and when a plurality of gripping bodies are arranged, the dimension in the opening direction becomes large, and there is a drawback that the device becomes large. The present invention also can accommodate easily PET bottles deformed soft, must be sufficiently resistant torque is obtained to seaming the screw cap, small footprint, and Yo provides a simple container gripping device of the adjustment It is what

[Procedure Amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments of the drawings. FIGS. 1 to 5 show the embodiments of the present invention. First, FIG. 1 shows a capper 7 equipped with a bottle A gripping device of the present invention.
6 is a plan view showing the arrangement of 6; 74 is a transfer star wheel arranged between an upstream device, for example, a filling device (filler); 75 is an outlet star wheel arranged downstream;
76 is a capper. The bottle A is sandwiched by a semicircular recess provided on the outer peripheral portion of the transfer star wheel 74 and a guide (two-dot chain line), sent in the direction of the arrow L and handed over to the capper 76. While being wound, it advances in the direction of arrow M , and is then carried out in the direction of arrow N by the exit star wheel 75. FIG. 2 is a sectional view taken along line BB of FIG. In these figures, 77 is a capper 76.
Of the rotary shaft 77, 78 (see FIG. 2) is a container base on which the bottle A fixedly mounted on the rotary shaft 77 is placed to rotate, and 79 is a container base 78.
A star wheel that is detachably fixed to the upper side of the and has a plurality of semi-circular recesses on the outer peripheral portion, and 80 is the star wheel 7.
Although it is a soft rubber attachment that is attached to the concave portion of the gripping piece 89 and a gripping piece 89 to be described later, it is needless to say that another elastic body may be used as long as it can hold the bottle A. Rubber plate (elastic body) 80 is bottle A
The gripping surface has a semicircular shape (FIG. 3) having an inner diameter slightly smaller than the outer diameter of the bottle A, and the star wheel 79 can be replaced according to the outer diameter of the bottle A.

[Procedure 3]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a plan view of a capper equipped with a container gripping device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line BB of FIG.

3 is a plan view of the grip body in FIG. 1. FIG.

FIG. 4 is a bottom view of the grip body in FIG. 1.

5 is a perspective view of the grip body in FIG. 1 as viewed from the upper right.

FIG. 6 is a front view of a capper equipped with a conventional container gripping device.

FIG. 7 is a plan view of the grip body in FIG.

FIG. 8 is a perspective view of the grip body in FIG.

FIG. 9 is a plan view of another conventional gripping body.

[Explanation of Codes] 3 Lid Tightening Head 76 Capper 77 Rotating Shaft 78 Container Stand 79 Star Wheel 80 Rubber Plate 81 Grip Body 84 Guide Rail 87 Grip Body Main Body 89 Grip Piece 90 Shim A Bottle

Claims (3)

[Claims] 1. A container held immediately below the lid closing head on a container base that rotates integrally with the lid closing head by a plurality of lid closing heads arranged around a rotating shaft.
In a capper for fitting or winding a lid, a star wheel detachably fixed to the upper side of the container base and having a plurality of semicircular concave gripping surfaces in the periphery, and a lower peripheral portion of the container base. A gripping body rotatably supported on a horizontal shaft provided at a right angle to the radial direction and having a semicircular concave gripping surface; and a guide rail that engages with the gripping body and rotates the gripping body.
When the gripping body faces the star wheel, the two semicircular concave gripping surfaces of the star wheel and the gripping body are concentric with each other by an arcuate elastic body and are slightly smaller than the outer diameter of the container. A container gripping device which forms a circle and thereby grips a container. 2. The container gripping device according to claim 1,
A container gripping device, wherein a removable elastic body is attached to a container contact surface of the grip surface of the star wheel and the grip surface of the grip body. 3. The container gripping device according to claim 1,
The gripping body is pressed toward the center of the container base by a pressing cam that is brought into contact with a roller provided on the gripping body, and the gripping surface of the gripping body can be adjusted in position toward the center of the container base via a shim. A container gripping device having the above structure.