JP3490474B2 - Plug attachment / detachment device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention
On the other hand, a plug that closes or opens the opening by attaching and detaching a plug
It relates to a detachable device. [0002] 2. Description of the Related Art Conventionally, drums, etc., which are containers with plugs
When re-using the drum, the opening protruding from the top of the drum can
Open the plug to close the mouth, or put oil etc. in the drum.
Plug removal device that closes the opening after filling
I have. This plug removal device is used to rotate the plug
The engaging part of
By reversing the screwed plug,
Release the screw fitting with the base, remove it from the opening and open it.
Rotate the plug forward and screw it into the base
By attaching to the opening with the screw fitting state with the base
Can be closed. [0003] SUMMARY OF THE INVENTION However, reuse
The drum can has deformation such as swelling of the top plate
In particular, doors that are frequently opened and closed
In ram cans, the opening is already quite inclined
In such a case, according to the inclination of the plug,
The plug cannot be removed unless the engagement part is attached.
There was a problem. [0004] The object of the present invention was made in view of the above problems.
For example, the opening may be significantly tilted due to reuse.
When opening and closing the plug on an inclined drum,
Make sure that the engaging parts are installed in accordance with the various inclinations of the lugs.
It is an object of the present invention to provide a plug attaching / detaching device which can be used. [0005] SUMMARY OF THE INVENTION The object of the present invention is to provide a screw-type press.
An engagement portion engaged with a lug to rotate the plug;
A member for displacing the engaging portion in accordance with the mounting state of the plug.
Matching means and the engaging portion engages and holds the plug
Locking means for locking the state and forward / reverse rotation of the engaging portion
Driving means for driving, and the driving means
By rotating the engaging portion engaged with the plug forward and reverse,
Put on and take off the rug, Posture and position immediately after coming off the opening
The state of the plug as it is is locked by the locking means.
Be lockedAchieved by a plug attaching / detaching device
Is done. [0006] According to the present invention, for example, it is attached to the opening of the container.
On the screwed plug that has been fitted,
By displacing the engaging portion in accordance with the state,
At the same time that the plug is securely attached,
The engagement holding state is locked. After locking, drive the engagement part
By means of reverse rotation drive by means,
Release the lug to open the opening, or remove the plug
The lug is returned to the open state by the locking means, and the engaging portion is
The opening is closed by forward rotation by the driving means.
Plug. [0007] BRIEF DESCRIPTION OF THE DRAWINGS FIG.
The arrangement will be described with reference to the drawings. As shown in FIGS. 1-3
In addition, the apparatus 10 for injecting a plug into a container with a plug is
1, drive conveyor (loading means) 12, and top plate pressing
A mechanism (top plate pressing means) 13 and a plug opening / closing mechanism (plug)
Lug attaching / detaching device) 14 and filling mechanism (filling material injection means) 1
5 in a container with a plug such as a drum 16
Fillers such as petroleum can be injected. The drum 16 has a top plate 16a at both upper and lower ends.
And a cylindrical body closed by the bottom plate 16b.
The top plate 16a communicates with the inside of the drum 16
An opening 17 protrudes (see FIG. 6). Opening 17
Is a screw-type plug 18 that is screw-fitted to the base 17a.
More closed. The plug 18 is an outer surface of the peripheral wall 18a.
And has a threaded portion, which is engaged with the inner surface of the peripheral wall 18a.
Engagement in which the engaged concave portion of the portion 37 engages in both forward and reverse rotations
It is formed in a shallow cup shape with projections (not shown)
You. The gantry 11 is a column 1 made of an H-shaped columnar member.
9a or beam 19b is arranged in a frame shape and formed
And a drive conveyor 12 at the bottom, and a top plate
The pressing mechanism 13 has a plug opening / closing mechanism 14 and a charging
The filling mechanisms 15 are respectively arranged. Drive conveyor
12 has a plurality of rotating rollers 12a arranged side by side.
And a part of the drive conveyor 12 is formed in the gantry 11.
Measuring unit conveyors 20 are independently arranged. This drive
The conveyor 12 is driven by a conveyor drive motor 12c.
Injection device 1 for filling container with plug
0, a carry-in line for carrying the drum 16 is formed.
You. A meter is provided below the measuring section conveyor 20.
Meter for measuring the weight of the drum 16 on the measuring unit conveyor 20
A measuring device 21 is provided. The top plate pressing mechanism 13 includes:
As shown in FIG. 4 and FIG.
1 A pair of top plate pressing parts protruding toward the center
22 and the same configuration as the
And a pair of positioning portions 23. The door loaded by the top plate pressing portion 22
Pressing force acts downward on the top plate 16a of the ram can 16
And hold down the top plate 16a without flapping.
The drum loaded by the positioning unit 23
The opening 17 of the can 16 is placed almost immediately below the plug opening / closing mechanism 14.
It can be positioned and held. Top plate holder
The part 22 is fixed to the beam 19b via the bracket 24.
Arm 25 projecting into the inside of the gantry 11
And a cylinder 26 attached to the lower end.
The cylinder 26 has a pad 26a attached to its tip.
Slide fixie that can move forward and backward with respect to the lower end
26b. The cylinder 26 is carried in, and is
Of the top plate 16a of the drum 16 located on the conveyor 20
It is located almost on the diameter and almost at the center in the radial direction (see FIG. 5).
The slide piston 26b in the advanced state is a top plate.
Extending further below the position where it contacts the part 16a
Can be. The positioning portion 23 is provided via a bracket 27
Arm 2 protruding inside gantry 11 fixed to beam 19b
8, a cylinder 29 attached to the lower part of the arm 28,
The cylinder 29 has a distal end along the arm 28.
The base 29a slidable in the horizontal direction is attached
Equipped with a slide piston 29b that can be extended and retracted in the horizontal direction
are doing. A Y-shaped receiving portion 29c is provided at the tip of the base 29a.
Installed. The cylinder 29 is a drum that has been carried in.
Located on the extension of the opening 17 of the two cylinders
29 are both advanced so that both receiving portions 29c
Is to hold the opening 17 from both sides and at the same time
Hold (see FIG. 5). The plug opening / closing mechanism 14 is shown in FIG.
As shown, it is attached to the beam 19b on the ceiling of the gantry 11.
Cylindrical bush cage held on the base plate 30
31 and a linear bush 32 in the bush case 31.
And a cylindrical cover 33 mounted via the
Outside the bush case 31, advance and retract to the lower end
A cylinder 34 having a free slide piston 34a
is set up. The cover 33 has a bush case 31
The small-diameter portion 35 inserted into the
Large-diameter portion 3 which is exposed from the lower end of bush case 31
6 and projecting from the upper end side of the large diameter portion 36.
The tip of the slide piston 34a is connected to the contact plate 36a.
Have been. The cylinder 34 is driven by driving means (not shown).
By driving the slide piston 34a, the cover
33 is advanced or retracted to the lower end of the bush case 31
Let Further, the cover 33 has a
Controls the engagement portion 37 protruding toward and the posture of the engagement portion 37
Corresponding device (engageable hand)
Step) 38 and a lock for holding and fixing the posture of the engaging portion 37.
Locking device (lock means) 39 is mounted. Engagement part
37 is a columnar shape having an engagement tip 40 enlarged at the lower end.
The engaging tip 40 is formed by a plastic
The engagement protrusion is covered by being inserted into the
In a state in which it is engaged with an engagement concave portion (not shown),
It has a shape and size that can be stored on the side. This engagement
By attaching the part 37 to the plug 18, the plug 18
Can be rotated. The plug 18 made of, for example, iron
After inserting the plug 37 into the plug 18, the suction means such as an electromagnet is
To allow the engaging tip 40 to engage and hold
It can be moved together with the engaging portion 37. Engagement tip
A flange 40a is formed at the rear end of the
A packing 4 made of an elastic member is provided on the tip side of the flange 40a.
2 is installed. At the rear end of the columnar portion 41, the connecting portion 4
3 are formed. The engagement corresponding device 38 is mounted on the lower end of the cover 33.
The spherical receiving plate 44 attached and the lower surface side of the spherical receiving plate 44
The mounted spherical lower support 45 and the upper surface side of the spherical receiving plate 44
Connected to the spherical upper support 46 attached to the
And a universal joint 47. Spherical receiving plate 4
4 is formed in a dome shape consisting of a part of a hollow sphere,
A circular hole 48 is opened in the center located at the top.
Projecting into the large diameter portion 36 to open the center of the circular hole 48 at the lower end.
It is installed so that it matches the center of the mouth. The circular hole 48 is formed so that the engaging portion 37
7 so that it can cope with various inclinations
It has an opening area that allows one inclination. Spherical support
45, the upper surface has the same curvature as the lower surface of the spherical receiving plate 44;
And is formed larger than the circular hole 48.
In addition, a through hole 49 through which the columnar portion 41 penetrates is provided in the vertical axis portion.
It is formed by a cylindrical body. The spherical upper support 46 has a lower surface formed by the spherical support plate 4.
4 and a circular hole made of a spherical surface having the same curvature as the upper surface.
48, and penetrates the columnar portion 41 in the vertical axis portion.
It is formed by a cylindrical body having a through hole 50 through which it passes.
You. The universal joint 47 advances with respect to the lower end 47a.
It has a slide shaft 51 mounted to be able to move out and back,
The tip of the slide shaft 51 is flexibly connected to the connecting portion 43
Have been. Also, the upper end portion 47 of the universal joint 47
b is flexibly connected to the connecting portion 52,
Reference numeral 52 denotes a transmission means which is internally mounted on the base plate 30.
It is connected to the connected base 52a. Therefore, the universal joint 47 is
43 and the connecting portion 52,
In addition, it is arranged to penetrate the small diameter portion 35,
The engaging portion 37 connected to the universal joint 47 is
The columnar portion 41 is provided with two bearings 53 of the spherical lower support 45.
Through hole 49, and then a circular hole in spherical receiving plate 44
48, and one bearing 53 of the spherical upper bearing 46.
Through each through hole 50 through
It protrudes downward from the lower end of the portion 36. [0021] The transmission means of the connecting base 52a is used.
Of the motor 54 installed above the base plate 30.
The driving force is applied to the universal joint 47 via the connecting portion 52.
Can be transmitted, and furthermore, the engaging portion
37. To transmit the driving force
The engaging portion 37 is turned clockwise with respect to the plug 18
It can be rotated or reversed counterclockwise. The spherical lower bearing 45 and the spherical upper bearing 45
In the case 46, the lower surface of the spherical receiving plate 44 is spherical.
An upper surface support 46 supports the upper surface of the spherical support plate 44,
The columnar portion 4 slides along the plate 44 and
It moves following the inclination of 1. Lock device 39 is spherical
A contact portion 55 provided integrally with the upper support 46;
Lock cylinder 5 for pressing 55 against spherical receiving plate 44
6. The contact portion 55 is arranged around the spherical upper bearing 46.
It is formed by a ring-shaped elastic body placed
Can be elastically deformed by pressing force from above.
You. The locking cylinder 56 is driven by driving means (not shown).
Slide piston that is driven and retracts to the lower end
The slide piston 56 at the time of evacuation is provided.
a in a state in which the tip of a is in contact with the upper surface of the contact portion 55.
At least two or more are installed above the part 55. This
At this time, the slide piston 56a is directly or in a ring shape.
It is in contact with the contact portion 55 via the pressure contact plate. The lock device 39 is a lock cylinder.
Activate the slide piston 56a to advance it
Then, the contact portion 55 is elastically deformed to make the upper surface of the spherical receiving plate 44
By pressing against, it moves integrally with the columnar part 41.
The spherical upper support 46 is fixed at an arbitrary position on the spherical support plate 44.
Can be kept constant. Therefore, the lock device 39
Spherical bearing 4 that follows a displacement state such as a tilt of the engagement portion 37
Locking means for holding and locking the displacement state of 6
Works. For this reason, the plug opening / closing mechanism 14 is
Even if the opening 17 is inclined by the response device 38, the engagement portion 3
7 can be inserted and held in the plug 18,
By rotating the engaging portion 37 forward and reverse, the plug 18 is rotated.
Can also be rotated in the forward and reverse directions.
Locking the plug 18 holding state of the engagement portion 37
The plug 18 to the opening 17
And a plug attaching / detaching device for closing or opening the opening 17.
Function. The plug opening / closing mechanism 14 is provided with a beam on the ceiling.
Rail 5 arranged along the direction in which 19b is bridged
7 can be moved by a certain amount in the horizontal direction.
And return to the original position before the movement.
(See FIG. 2). The filling mechanism 15 is shown in FIGS.
3 filling nozzles (injection part) 5 for injecting the filling
8 and three slides for sliding the respective filling nozzles 58
Moving unit 59 and a flexible member communicating with each filling nozzle 58.
And a plug opening / closing mechanism 14
And is mounted on the gantry 11. Each filling nozzle 58 has one end directed downward.
A connection port having a filling port 58a and oriented substantially horizontally at the other end.
58b, and is formed by an L-shaped cylinder having
It is attached to the sliding unit 59 via the holding portion 61.
(See FIG. 7). The support portion 61 has a filling nozzle 58 at the lower end.
Slide shaft 62 attached with, slide the slide shaft 62
And a cylinder 63 penetrated freely.
The die 63 is substantially upright below the tip of a sliding member 67 described later.
Attached. The cylinder 6 is located beside the support 61.
4 is mounted, and a cylinder 64 is driven by a drive (not shown).
Driven by the means to advance and retract to the lower end
And a piston 64a. This slide piston
The tip of the projection 64a is provided on the side of the slide shaft 62.
It is connected to the moving plate 65. Therefore, the driven slide
With the piston 64a, the filling nozzle 58 is moved vertically.
Can be moved. Each sliding unit 59 is mounted on the gantry 11.
Drive of the driving means (not shown)
To the plug opening / closing mechanism 14 along the bracket 66
And a sliding member 67 for moving forward and backward.
After the closing mechanism 14 is separated from above the opening 17 of the drum 16
Then, the sliding member 67 is advanced and the support portion 61 is opened.
Can be located on top. Each bracket 66 has a sliding member
At the time, the tip is placed on the opening 17 of the loaded drum 16.
Are arranged radially in a direction
(See FIG. 8). Flexible hose 6
0 is connected at one end to the connection port 58b via the union joint 68.
The other end is connected via a union joint 68
11 is connected to the filler introduction section 69 at the upper end. Flexi
The vicinity of the connection port 58b of the sibble hose 60 is
Are held so that they can move substantially horizontally (see FIG. 7).
See). The filling mechanism 15 allows each filling nozzle 5
8 is selectively controlled by control means (not shown) to control each filling nozzle.
Are individually arranged in the openings 17 from which the plugs 18 are detached.
Can be placed through each of the injection ports 58a.
Different kinds of packing can be selected and injected
You. At the center of the side of the gantry 11, a column 19a is attached.
An operation panel 71 is installed (see FIG. 1).
)), With plug when filling the drum 16
The operation of the device 10 for injecting the filling material into the container is performed by the operation panel 71.
Can be performed. Further, a drum 16 is rotated on the gantry 11.
The drum rotation motor 72 to be driven
And spaced equally around the side of the loaded drum 16
And at least three (see FIG. 1). Each do
The ram rotation motor 72 is in contact with the side surface of the drum 16.
The driving force of the drum rotation motor 72 is
And a transmission roller 72a for transmitting the power to the transmission roller.
Roller 72a in the filling injection device 10 for a container with a plug.
Into the drum 16 located on the measuring instrument 21
Each drum can rotating motor 72 is brought into contact with each other.
By simultaneously rotating in the directions, the drum 16
Rotates on the vertical axis on the spot. The supporting means 73 is provided with a motor 7 for rotating the drum can.
2 is brought into contact with or separated from the drum 16 at any time
Can be. Next, the operation will be described. First, the container with the plug
Actuated and actuated the device 10 for injecting the filling into the vessel
The drum 16 is connected to the container with the plug by the conveyor 12.
It is carried into the filling material injection device 10. Drums carried in
16 is located on the weighing unit conveyor 20 and stopped
You. At this time, an empty drum can
A weight of 16 is weighed. The drum 16 is placed on the measuring section conveyor 20.
By placing it, the support means 73 is activated and each drum can
The rotation motor 72 moves to the drum 16 side, and
Roller 72a is equally spaced around the side of the drum 16
Abut All the transfer rollers 72a contact the drum 16
When the drum 16 is in contact, the opening 17 is positioned.
Passes through the intersection on the extension of both arms 28 facing each other
It is located on a concentric circle on the top plate 16a. The driving of each drum rotating motor 72 is performed.
Each transmission roller 72a is rotated by the movement, and the drum 16 is removed.
Rotate. Position of opening 17 of drum 16 during rotation
Is detected by detecting means (not shown), and the opening 17 is
The drum rotates when it is located almost halfway between the arms 28
Of the motor 72 is stopped, and the rotation of the drum 16 is stopped.
To stop. At this time, the opening 17 is located between the two arms 28.
At the same time, the top plate pressing parts 22 are
It will be located substantially on the diameter of the plate portion 16a. Continued
Then, the positioning part 23 is operated, and both the cylinders 29
Both slide pistons 29b are in the advanced state, and both receiving portions
29c, the opening 17 is sandwiched from both sides.
The holding state is maintained (see FIG. 5). The opening 17 is an example.
For example, if it is tilted, keep it
And Therefore, the opening of the loaded drum 16
17 is a plug opening / closing mechanism 1 which is held in a fixed state and
4 is located almost immediately below. By both receiving parts 29c
After holding the opening 17, the top plate pressing mechanism 13 is operated.
And both slide pistons 26b of both cylinders 26
To the advanced state. Slide piston in advanced state
26b, after the pad 26a abuts on the top plate 16a,
Further, a pressing force may be applied downwardly to the top plate 16a.
(See FIG. 4). Subsequently, the plug opening / closing mechanism 14 is operated.
You. The operation of the plug opening / closing mechanism 14 drives the motor 54.
While moving the engaging portion 37 in the reverse direction,
4 simultaneously advances the slide piston 34a and
The slide shaft 51 of the universal joint 47 is also advanced,
The cover 33 is set in the advanced state. The cover 33 in the advanced state lowers the engagement portion 37.
It slowly descends while rotating at the speed, and the engaging tip 4
0 makes contact with the plug 18 and further enters the peripheral wall 18a.
Let it. At this time, for example, the opening 17 is inclined,
Even if the plug 18 is inclined accordingly,
A mechanism for controlling the posture of the engaging portion 37 to correspond to the plug 18
The engagement tip 40 is inserted into the plug 18 by the matching device 38.
Can be invaded. That is, the engaging tip portion 40 that invades the peripheral wall 1
8a, but it is inclined according to this inclination.
And a lower spherical support 45 sliding along the spherical receiving plate 44.
The columnar portion 41 is inclined by the spherical upper support 46, and at the same time,
When the universal joint 47 is inclined (the broken line in FIG. 6)
), The inclination of the engagement tip 40 along the peripheral wall 18a is allowed.
Will be tolerated. Then, it invades the peripheral wall 18a while rotating in the reverse direction.
The engaged engagement end portion 40 engages the engagement protrusion and the engaged concave portion.
Combine. The engagement protrusion engages with the engaged recess.
The rotation of the engaging tip 40 is transmitted to the plug 18 and
The lug 18 rotates in the reverse direction. At this time, the engagement state is, for example, torque.
The cylinder 34 slides
Retracting the piston 34a according to the screw fitting state
As a result, the plug 18 rises while rotating, and
7a is disengaged from the opening 17 and the opening 1 is released.
7 is opened. While the plug 18 rotates, the base 17a
When the screw fitting is released, the top plate pressing mechanism 13
It is possible to hold down the top plate 16a without flapping
As a result, the plug 18 can be stably opened.
At this time, slide the lock cylinder 56 by operating it.
The piston 56a is in the advanced state, and the contact portion 55 is elastically deformed.
And pressed against the upper surface of the spherical receiving plate 44,
The spherical upper bearing 46 that has moved integrally with the shape portion 41 is
Locked state fixed and held at the moved position on the cover plate 44
Becomes Therefore, the posture immediately after coming off the opening 17
And the state of the plug 18 remaining in the position, the locking device 39
Will be locked. Plug 18 is opening 1
7, the plug opening / closing mechanism 14 is connected via the rail 57.
And move it. The plug opening / closing mechanism 14 moves to open
The plug 18 detached from the mouth 17 is engaged with the engagement tip 40.
It is held together and moves with the engaging portion 37. Subsequently, the filling nozzle corresponding to the filling material to be injected is
The nozzle 58 is selected from three types, and the filling nozzle 58 is selected.
Is advanced over the sliding member 67 and positioned on the opening 17.
You. After the filling nozzle 58 is positioned over the opening 17,
The selected filler introduced via the filler introduction section 69 is
It is poured into the drum 16 via the inlet 58a. this
When filling, select the filling nozzle 58
Can be selected as necessary,
Injection device 10 for filling containers with plugs
Injection of different types of fillers becomes possible. Therefore, the filling nozzle 58 for injecting the filling material
However, if there is only one piece corresponding to one type of packing
Means that the same type of filling is dedicated to one device.
The three filling nozzles 58 were selected and used.
Can be used for different kinds of
Types of packing can be filled. The filling nozzle
58 is not limited to three and may be one or two or
The above may be more than one. In the case of one, the configuration of the device is simplified
In the case of two or more, it corresponds to many kinds of packing
can do. At the time of filling, the weight is measured by the measuring device 21.
It is weighed, and the dough corresponds to the weight of the drum 16 when it is empty.
The injection stops when the required amount of filling is filled in the ram 16
Is done. After the filling is completed, the sliding member 67 is removed.
The filling nozzle 58 is moved from above the opening 17
And the plug opening / closing mechanism 14 is moved via the rail 57.
To return to the opening 17. The plug opening / closing mechanism 14 is returned to the opening 17
The plug 1 detached from the opening 17
8 is engaged with the engagement tip 40 by the lock means 39 acting.
Returning to the state where it is held and removed from the opening 17
Can be. At this time, the engagement portion 37 is rotating in the reverse direction. So
After that, the cylinder 34 advances the slide piston 34a.
By doing so, the plug 18 rotates in the reverse
It is lowered while rolling, and is screwed into the base 17a.
17 is closed. At the end of screw fitting, use high torque
It is more securely tightened. While the plug 18 rotates, the base 17a
When the screw is fitted, the top plate pressing mechanism 13
The top plate portion 16a can be pressed down without being settled.
Therefore, the plug 18 can be stably closed. plug
When 18 closes the opening 17 and becomes unrotatable,
Is detected by the torque detecting means, and the cylinder 34 slides.
The piston 34a is retracted. Slide piston 34a
Retracts to release the engagement between the engaged recess and the engagement protrusion
And the engagement tip 40 rises away from the plug 18
You. The drum 16 filled with the filling material
Is the loading line for filling the plugged container
The next empty drum 16 is sent out from the
To the plug filling device 10
Get stuck. It is attached and detached by the plug opening / closing mechanism 14.
Plug 18 is attached to a container such as the drum 16.
The plug is not limited to
Other than these may be used. [0050] As described above, according to the present invention, for example,
Use in drums with openings that are significantly inclined by use
When opening and closing the lug, it can handle various inclinations of the plug.
Thus, the engaging portion can be securely mounted.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of an apparatus for injecting a plug into a container according to an embodiment of the present invention. FIG. 2 is a plan view of the apparatus for injecting a filling material into a container with a plug shown in FIG. FIG. 3 is a side view of the apparatus for injecting filling material into the container with a plug shown in FIG. 1; FIG. 4 is an explanatory diagram of a top plate pressing mechanism. FIG. 5 is a plan view showing a top plate pressing portion and a positioning portion located on the drum. FIG. 6 is an explanatory view in which a plug opening / closing mechanism is partially broken. FIG. 7 is an explanatory view of a filling mechanism. FIG. 8 is an explanatory view showing a sliding unit of the filling mechanism. DESCRIPTION OF SYMBOLS 10 ... Filling device for container with plug 11 ... Stand 12 ... Drive conveyor 12a ... Rotary roller 12b ... Metering section conveyor 12c ... Conveyor drive motor 13 ... Top plate pressing mechanism 14 ... Plug attaching / detaching mechanism ( 15) Filling mechanism 16 ... Drum can (container with plug) 16a ... Top plate 16b ... Bottom plate 17 ... Opening 17a ... Base 18 ... Plug 18a ... Peripheral wall 19a ... Column 19b ... Beam 20 ... Measuring unit conveyor 21 weighing machine 22 top plate pressing part 23 positioning part 24 bracket 25 arm 26 cylinder 26a pad 26b slide piston 27 bracket 28 arm 29 cylinder 29a base 29b slide piston 29c receiving Part 30 Base plate 31 Bush case 32 Linear bush 33 Cover 3 ... Cylinder 34a ... Slide piston 35 ... Small diameter part 36 ... Large diameter part 36a ... Abutment plate 37 ... Engagement part 38 ... Engagement correspondence device (engagement correspondence means) 39 ... Lock device 40 ... Engagement tip part 40a ... Flange 41 ... columnar part 42 ... packing 43 ... connecting part 44 ... spherical receiving plate 45 ... spherical lower receiving 46 ... spherical upper receiving 47 ... universal joint 47a ... lower end 47b ... upper end 48 ... circular hole 49 ... through hole 50 ... through hole 51 slide shaft 52 connecting part 52a connecting base 53 bearing 54 motor (drive means) 55 contact part 56 locking cylinder 56a slide piston 57 rail 58 filling nozzle 58a inlet 58b connecting Port 59 sliding unit 60 flexible hose 61 support 62 slide shaft 63 cylinder 64 cylinder 64a slide piston 65 Operating plate 66 ... Bracket 67 ... Sliding member 68 ... Union joint 69 ... Fill introduction unit 70 ... Suspension member 71 ... Operation panel 72 ... Drum can rotation motor 72a ... Transmission roller 73 ... Support means

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-3-240689 (JP, A) JP-A-3-686 (JP, A) JP-A-59-125226 (JP, A) JP-A-6-260 179488 (JP, A) Japanese Utility Model 63-59893 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B21D 51/46

Claims (1)

(57) [Claim 1] An engaging portion to be engaged with a screw-on type plug, and an engagement corresponding means for displacing the engaging portion in accordance with a mounting state of the plug. A locking means for locking a state in which the engaging portion engages and holds the plug; and a driving means for driving the engaging portion to rotate forward and reverse, wherein the engaging portion engaged with the plug is Rotate forward and reverse to attach and detach the plug, the posture immediately after coming off the opening and
The state of the plug in the position remains by the locking means.
A plug attaching / detaching device characterized by being locked .