JP2011162254A - Rotary cap pulling tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary cap-pulling tool enabling a user, who is weak in grip strength and arm strength, and has an obstacle in hands, fingers or the like, to easily and surely take out a rotary cap attached to a beverage container such as a PET bottle. <P>SOLUTION: The rotary cap-pulling tool includes: a case body 1 in the shape of an almost cylinder wherein the neck part of the beverage container 23 is concentrically inserted into an opening at its front end; a rotary shaft 5 provided rotatably within the case body 1 concentrically with the case body 1; and a geared motor 2 for rotating the rotary shaft 5. In the opening edge part at the front end of the case body 1, a container fixation part 19 is provided for fixing the beverage container 23. On the front end of the rotary shaft 5 within the case body 1, a cap gripping part 11 is provided which can rotate integrally with the rotary shaft 5 while holding the rotary cap 25, and can move in the direction of the base end part of the case body 1 on opening the rotary cap 25. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a rotary cap remover for removing a rotary cap attached to an opening of a beverage container such as a plastic bottle.

  In general, a plastic bottle that is one of beverage containers includes a plastic bottle main body that contains a beverage and a rotary cap that closes an opening of the plastic bottle main body.

  And in this commercial bottle, in order to prevent the leakage of a drink in the commercial stage, the tightening of the rotation type cap to the plastic bottle body is strengthened. In order to prevent unauthorized opening, measures such as attaching a tamper evidence ring to the opening side of the PET bottle main body are taken.

  For this reason, torque (opening torque) of about 0.1 N · m to 2.0 N · m is required to open the rotary cap attached to the opening of the PET bottle body.

  As a result, people with weak grip and arm strength, such as infants and the elderly, especially those with disabilities in the hands and fingers, may find it very difficult to remove the rotating cap attached to the beverage container. It was.

  The present invention has been made in view of such circumstances, and a rotating cap that is easily and surely attached to a beverage container such as a plastic bottle even for a person with weak grip strength or arm strength and a person with a hand or finger obstacle. A rotary cap remover that can be removed is provided.

  In order to solve the above-mentioned problem, the present invention according to claim 1 is a rotary cap remover for removing a rotary cap screwed to a screw portion of an opening of a beverage container, and is formed in a substantially cylindrical shape. A case main body in which the neck of the beverage container is coaxially inserted into the opening of the tip, a rotary shaft provided coaxially with the case main body in the case main body, and the rotary shaft A container fixing portion for fixing the beverage container at the opening edge of the tip portion of the case body, and at the tip portion of the rotation shaft in the case body, A cap gripping portion is provided that can grip the rotary cap and rotate integrally with the rotary shaft, and that can move in the direction of the base end of the case body together with the opening of the rotary cap. Also features It is.

  According to a second aspect of the present invention, there is provided the rotary cap removing tool according to the first aspect, wherein the cap gripping portion is formed in a columnar shape, and a concave portion into which the rotary cap can be inserted at a tip surface thereof. And a gripping projection for gripping the rotary cap is formed on the inner peripheral surface of the recess, and the container fixing portion has an inner diameter smaller than an outer diameter of the cap gripping portion. It is formed larger than the diameter of the recess, and a fixing projection for fixing the beverage container is formed on the inner peripheral surface thereof.

  Further, according to a third aspect of the present invention, in the rotary cap removing tool according to the first or second aspect, a through-hole penetrating in the axial direction is formed in the center of the cap gripping portion. In addition, a cylindrical connecting portion that is connected to the rotation shaft is provided, and an extrusion rod is inserted into the through hole so as to be able to protrude and retract, and the push rod is inserted into the inside of the connecting portion on the concave side. An urging means for urging toward is provided.

  According to a fourth aspect of the present invention, there is provided a rotary cap removing tool according to any one of the first to third aspects, wherein the connecting portion can be coaxially inserted into the rotary shaft. A guide tube is provided, a guide hole extending in the axial direction is formed on a side surface of the guide tube, a guide pin inserted into the guide hole is protruded on a side surface of the connection portion, and the connection portion is In the guide tube, it is disposed so as to be movable in the axial direction, and the urging means in the connecting portion is disposed between the rotating shaft and the push rod.

  Moreover, the present invention according to claim 5 is the rotary cap remover according to any one of claims 1 to 4, wherein the diameter of the concave portion of the cap gripping portion is directed from the distal end surface toward the proximal end surface. It is characterized by being formed so as to become gradually narrower.

  Furthermore, the present invention described in claim 6 is the rotary cap remover according to any one of claims 1 to 5, wherein the inner diameter of the container fixing portion is gradually narrowed from the distal end surface toward the proximal end surface. It is formed so that it may become.

  According to the first aspect of the present invention, the rotary cap is inserted into the opening at the tip of the case body until it reaches the cap gripping portion, and the cap gripping portion grips the rotary cap. At the same time, the neck portion of the beverage container is fixed to the container fixing portion.

  When the motor attached to the case body is started, the cap gripping portion provided integrally with the tip end portion rotates around the axis via the rotation shaft. Thereby, in the state where the neck portion of the beverage container is fixed to the container fixing portion, a force rotating in the opening direction acts only on the rotary cap. As a result, even for people with weak grip and arm strength, such as infants and the elderly, especially those with disabilities in the hands and fingers etc., the rotary cap remover of the present invention is attached to the beverage container screwed with the rotary cap, The rotary cap can be easily removed from the beverage container by a simple operation of starting the motor.

  In addition, when the cap is opened, when the rotary cap is opened by the screw portion of the neck portion of the beverage container, a force directed toward the base end of the case body acts. However, since it can move toward the base end, it is possible to reliably remove the rotary cap from the beverage container.

  Furthermore, according to the second aspect of the present invention, since the inner diameter of the container fixing portion is smaller than the outer diameter of the cap gripping portion, the cap gripping portion does not protrude outside the case body. It can be held in the case body. Further, since the diameter of the concave portion into which the rotary cap is inserted is formed, the rotary cap is inserted into the concave portion of the cap gripping portion disposed in the case body via the container fixing portion. The rotating cap is securely gripped by the gripping protrusion formed on the inner peripheral surface of the recess, and the neck portion of the beverage container is fixed on the inner peripheral surface of the container fixing portion. Securely fixed to the protrusion. As a result, the cap gripping portion and the container fixing portion do not idle, and the rotary cap can be removed from the beverage container more reliably.

  Moreover, according to this invention of Claim 3, when removing the said beverage container from the rotary cap removal tool which concerns on this invention after opening, an urging | biasing means provided in the said connection part WHEREIN: An extrusion rod Therefore, when the beverage container is removed, the rotary cap is pushed out of the recess by the push rod. As a result, it is possible to easily remove the rotary cap gripped by the gripping projection of the cap gripping portion.

  According to the present invention described in claim 4, the guide pin protruding from the connecting portion is movable along a guide hole formed in the guide tube and extending in the axial direction. In the guide tube, since the connecting portion is disposed so as to be movable in the axial direction, when the rotary cap is opened, the rotary cap is raised by the screw portion of the neck portion of the beverage container. Thus, even if a force directed toward the base end portion of the case main body acts on the cap gripping portion, the cap gripping portion can be reliably moved toward the base end portion of the case main body.

  Further, since the biasing means in the connecting portion is disposed between the rotating shaft and the push rod, the push rod is pushed out to the concave portion by the biasing means when the rotary cap is removed. At the same time, it is possible to move the cap gripping part moved to the base end side of the case body to the initial position on the tip side of the case body.

  According to the fifth aspect of the present invention, since the diameter of the concave portion of the cap gripping portion is formed so as to become gradually narrower from the distal end surface toward the proximal end surface, the outer diameter of the rotary cap is increased. Even if the diameter is slightly small or large, the rotary cap can be securely gripped.

  Furthermore, according to the present invention as set forth in claim 6, since the inner diameter of the container fixing portion is formed so as to gradually become narrower from the distal end surface toward the proximal end surface, the outer diameter of the neck portion of the beverage container. Even if it is slightly larger or smaller, it is possible to securely fix the neck portion of the beverage container.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows an embodiment of a rotary cap removing tool according to the present invention, wherein (a) is a longitudinal sectional view and (b) is a left side view of a rotating shaft. It is an AA end view of FIG. It is a BB end view of FIG. It is explanatory drawing which shows the state which uses FIG.

Fig.1 (a) shows one Embodiment of the rotary cap removal tool which concerns on this invention, and the code | symbol 1 is a case main body in the figure.
The case body 1 is formed in a substantially cylindrical shape, and has an outer diameter on the proximal end side smaller than an outer diameter on the distal end side, whereby the proximal end portion is formed on the rotary cap removing tool. It is a gripping part for gripping.

  A geared motor 2 is attached to the base end portion of the case body 1.

  Here, the geared motor 2 is configured by attaching a gear head 4 having a reduction gear inside to a shaft of the motor 3. A rotating shaft 5 of the gear head 4 is inserted coaxially with the case body 1, and a guide tube 6 is fixed coaxially to the rotating shaft 5. In the present embodiment, the geared motor 2 having a rotation speed of 20 r / min and a rated torque of 2.5 N · m is used.

  The guide tube 6 is formed in a cylindrical shape, and is provided with a journal bearing 7 between the side surface on the tip end side and the case body 1, so that the guide tube 6 can rotate around the axis. Further, as shown in FIG. 1B, a guide hole 8 extending in the axial direction is formed on the side surface of the guide tube 6. And the connection part 9 is coaxially inserted in the inside.

  The connecting portion 9 is formed in a cylindrical shape and is provided with a guide pin 10 fitted in the guide hole 8 of the guide tube 6 on the side surface, and is disposed in the guide tube 6 so as to be movable in the axial direction. . And the cap holding part 11 which hold | grips the said rotary cap is integrally provided in the front-end | tip part of the connection part 9. As shown in FIG.

  The cap gripping portion 11 is formed in a cylindrical shape, and a concave portion 12 having a dimension (φ27 to 38 mm) into which the rotary cap can be inserted is formed on the tip surface. And the diameter of this recessed part is formed so that it may become narrow gradually toward a base end surface from a front end surface (in this embodiment base end surface (phi) 27mm, front end surface (phi) 29mm). Further, on the inner peripheral surface of the concave portion 12, three gripping projections 13 for gripping the rotary cap are formed at equal intervals. As shown in FIG. 1, the gripping protrusion 13 is formed with a scratch portion 26 extending in the axial direction in a sectional view. As shown in FIG. 2, the scratching portions 26 are formed at intervals of 6 ° C. in the direction around the axis in the end view, and are inclined as the respective scratching portions 26 advance leftward around the axis. Thus, the step portion 21 is formed on the left side in the direction around the axis of the scratch portion 26.

  Further, a through hole 14 penetrating in the axial direction is formed in the center of the cap gripping portion 11, and an extrusion rod 15 is inserted into the through hole 14 so as to be able to appear and retract in the recess 12.

  The push rod 15 is formed in a columnar shape, and a stopper that prevents the push rod 15 from falling out of the through hole 14 by forming a base end portion of the push rod 15 in a disk shape having a larger outer diameter than other portions. It is 16. Further, a spring member (biasing means) 17 is disposed on the stopper 16 inside the connecting portion 9, provided on the spring member 17 at the tip of the rotating shaft 5 of the geared motor 2, and a case main body of the spring member 17. By disposing the stopper member 18 that restricts the movement of 1 toward the proximal end portion, the push rod 15 is urged toward the concave portion 12 side.

  On the other hand, a container fixing portion 19 for fixing a beverage container is provided at the opening edge of the tip of the case body 1. The inner diameter of the container fixing portion 19 is formed to be smaller than the outer diameter of the cap gripping portion 11 and larger than the diameter of the recess 12 on the distal end surface side (φ30 to 40 mm). Further, the inner diameter of the container fixing portion 19 is gradually narrowed from the distal end toward the middle stage and gradually widened from the middle stage toward the proximal end (in the present embodiment, the proximal end surface and the distal end surface φ31 mm, the middle step portion φ30 mm). Has been. And three fixing protrusions 20 for fixing the beverage container are formed at equal intervals on the inner peripheral surface thereof. As shown in FIG. 1, the fixing protrusion 20 is formed with a scratching portion 27 extending in a slanting direction 45 ° to the right with respect to the horizontal direction in a cross-sectional view. As shown in FIG. 3, the scratching portions 27 are formed at intervals of 8 ° C. in the direction around the axis in the end view, and are inclined as the respective scratching portions 27 advance rightward around the axis. Thus, the step portion 22 is formed on the right side of the scratch portion 27 in the direction around the axis.

Next, the operation of the rotary cap removing tool of this embodiment will be described with reference to FIG.
First, the grip portion of the case body 1 of the rotary cap removing tool is gripped, and the neck portion of the beverage container in which the rotary cap 25 is attached to the opening of the distal end portion of the case body 1 is connected to the rotary cap 25. Is inserted until the base end side of the recess 12 of the cap gripping part 11 is reached.

  Thereby, in the case main body 1, the pushing rod 12 in the recessed part 12 is pushed in the direction of the base end part of the case main body by the rotary cap, and the spring member 17 contracts. Further, the rotary cap 25 is gripped by the gripping projection 13 and the scratching portion 26 of the cap gripping portion 11, and the neck portion 28 of the beverage container 23 and the neck portion 28 are fixed by the fixing projection 20 and the scratching portion 27 of the container fixing portion 19. The tamper-evidence ring 24 provided in the is fixed.

  Next, the geared motor 2 attached to the case body 1 is started. Then, the guide tube 6 provided on the rotating shaft 5 rotates counterclockwise, and the connecting portion 9 rotates counterclockwise via the guide pin 10 fitted in the guide hole 8. The cap gripping part 11 provided integrally with the connecting part 9 also rotates counterclockwise.

  As a result, in the state where the neck portion of the beverage container 23 and the tamper evidence ring 24 are fixed, a force that rotates in the opening direction (counterclockwise direction) acts on the rotary cap 25, thereby rotating the beverage container 23. The cap 25 is removed.

  Next, after opening the cap, the rotary cap remover is lifted upward in the axial direction in the figure, and the neck portion 28 and the tamper evidence ring 24 of the beverage container 23 are removed from the container fixing portion 19. Due to the repulsive force of the spring member 17 contracted when 25 is attached, the push rod 15 is pushed out toward the concave portion 12, and the rotary cap 25 is pushed out of the concave portion 12 by the push rod 15. As a result, the rotary cap 25 is detached from the gripping projection 13 and the scratching portion 26 of the cap gripping portion 11.

  According to the rotary cap removing tool having the above configuration, when the geared motor 2 is started, the rotational force is formed integrally with the connecting portion 9 via the rotating shaft 5, the guide tube 6, and the connecting portion 9. Is transmitted to the cap gripper 11. As a result, the neck portion 28 of the beverage container 23 and the tamper-evidence ring 24 provided on the neck portion 28 are fixed to the container fixing portion 19 so that the rotary cap 25 held by the cap holding portion 11 is opened in the opening direction. A rotating force acts. As a result, even a person who has a weak grip or arm strength, such as an infant or an elderly person, particularly a person who has a hand or finger obstacle, attaches the rotary cap remover of the present invention to the beverage container 24 to which the rotary cap 25 is screwed. The rotary cap 25 can be easily removed from the beverage container 23 by a simple operation of starting the geared motor 2.

  Further, since the inner diameter of the container fixing portion 19 is smaller than the outer diameter of the cap gripping portion 11, the cap gripping portion 11 can be held in the case main body 1 without protruding outside the case main body 1. It becomes possible. Further, since the diameter of the concave portion 12 into which the rotary cap 25 is inserted is formed, the rotary cap 25 is disposed on the cap gripping portion 11 disposed in the case body 1 via the container fixing portion 19. The rotary cap 25 is securely gripped by the gripping protrusion 13 and the scratching portion 26 that are inserted into the recess 12 and formed on the inner peripheral surface of the recess 12, and the neck portion 28 and the neck portion 28 of the beverage container 23. The provided tamper evidence ring 24 is securely fixed to the fixing protrusion 20 and the scratching portion 27 formed on the inner peripheral surface of the container fixing portion 19. As a result, the cap gripping part 11 and the container fixing part 19 do not idle, and the rotary cap 25 can be removed from the beverage container 23 more reliably.

  Then, when the beverage container 23 is removed from the rotary cap remover according to the present invention after opening, the push rod is pushed by the repulsive force of the spring member 17 contracted when the rotary cap 25 is attached to the cap gripping portion 11. Since a force toward the concave portion 12 side of the cap gripping portion 11 acts on the rotary cap 15, the rotary cap 25 is pushed out of the concave portion 12 by the push rod 15. As a result, the rotary cap 25 gripped by the gripping projection 13 and the scratching portion 26 of the cap gripping portion 11 can be easily removed.

  Further, since the spring member 17 is disposed between the stopper member 18 provided at the tip of the rotary shaft 5 and the push rod 15, when the rotary cap 25 is removed, the repulsive force of the spring member 17 At the same time as the push rod 15 is pushed out toward the recess 12, the cap gripper 11 that has moved to the base end side of the case main body 1 can be moved to the initial position on the tip end side of the case main body 1.

  The guide pin 10 projecting from the connecting portion 9 can move along the guide hole 8 formed in the guide tube 6 and extending in the axial direction. Is disposed so as to be movable in the axial direction. Therefore, when the rotary cap 25 is opened, the rotary cap 25 is raised by the screw portion of the neck portion of the beverage container 23, and the case is placed on the cap gripping portion 11. Even if a force toward the base end portion of the main body 1 acts, the cap gripping portion 11 can be reliably moved toward the base end portion of the case main body 1.

  And since the diameter of the recessed part 12 of the cap holding | grip part 11 is formed so that it may become narrow gradually from a front end surface toward a base end surface, even if the outer diameter of the rotary cap 25 is slightly small or large, it is surely It is possible to grip the rotary cap 25.

  Further, the scratching portion 26 of the gripping protrusion 13 may extend in the axial direction in a cross-sectional view, so that the anti-slip protrusion extending in the axial direction is formed on the outer periphery. When the rotary cap 25 is inserted, the rotary cap 25 can be easily inserted without the scratch portion 26 being caught by the anti-slip projection. In addition, the scratching portions 26 are formed at a pitch interval of 6 ° C. in the axial direction in the end view, and are configured to be inclined as the respective scratching portions 26 advance in the counterclockwise direction. Since the step portion 21 is formed on the left side of the scratch portion 26 in the axial direction, the anti-slip protrusion is caught on the step portion 21 and the rotary cap 25 can be gripped more reliably. . As a result, it is possible to reliably remove the rotary cap 25 without idling.

  Further, since the inner diameter of the container fixing portion 19 is formed so as to be gradually narrower from the distal end toward the middle stage and gradually wider from the middle stage toward the proximal end, the tamper evidence ring 24 can be gripped by the middle stage portion. In addition, the tamper evidence ring 24 can be securely fixed even if the outer diameter of the tamper evidence ring 24 is slightly larger or smaller.

  Further, the scratching portion 27 of the fixing projection 20 extends obliquely to the right at 45 ° C. with respect to the horizontal direction in a cross-sectional view, so that when the force in the opening direction acts on the tamper evidence ring 24, the scratching portion 27 The tamper evidence ring 24 bites into the portion 27. Further, in the end view, the scratching portions 27 are formed at a pitch interval of 8 ° C. in the direction of the axis, and each of the scratching portions 27 is inclined as it advances in the clockwise direction of the axis. Since the step portion 22 is formed on the right side in the direction around the axis, the biting portion of the tamper evidence ring 24 is hooked on the step portion 22, and the tamper evidence ring 24 can be fixed more reliably.

1 Case body 2 Geared motor (motor)
DESCRIPTION OF SYMBOLS 5 Rotating shaft 6 Guide cylinder 8 Guide hole 9 Connection part 10 Guide pin 11 Cap holding part 12 Recess 13 Holding protrusion 14 Through hole 15 Extrusion rod 17 Spring member (biasing means)
19 Container fixing part 20 Fixing protrusion 23 Beverage container 25 Rotating cap

Claims (6)

A rotary cap remover for removing a rotary cap screwed to a screw portion of an opening of a beverage container,
A case body that is formed in a substantially cylindrical shape, and the neck of the beverage container is coaxially inserted into the opening of the tip, and a rotation shaft that is rotatably provided coaxially with the case body inside the case body And a motor for rotating the rotating shaft,
In addition, a container fixing portion for fixing the beverage container is provided at an opening edge portion of the tip portion of the case body, and the rotating cap is gripped at the tip portion of the rotating shaft in the case body to rotate the A rotary cap remover characterized by being provided with a cap gripper that can rotate integrally with the shaft and that can move in the direction of the base end of the case body together with the opening of the rotary cap.   The cap gripping portion is formed in a columnar shape, and a concave portion into which the rotary cap can be inserted is formed on a tip surface thereof, and a gripping protrusion for gripping the rotary cap is formed on an inner peripheral surface of the concave portion. The container fixing portion is formed so that its inner diameter is smaller than the outer diameter of the cap gripping portion and larger than the aperture of the recess, and a fixing projection for fixing the beverage container is formed on the inner peripheral surface of the container fixing portion. The rotary cap remover according to claim 1, wherein the rotary cap remover is provided.   A through hole penetrating in the axial direction is formed at the center of the cap gripping portion, and a cylindrical connecting portion is provided to connect to the rotating shaft, and an extrusion rod is inserted into the concave portion in the recess. 3. The urging means that is slidably inserted and urged to urge the push rod toward the concave portion is provided inside the connecting portion. Rotary cap remover.   The rotating shaft is provided with a cylindrical guide tube into which the connecting portion can be coaxially inserted. A guide hole extending in the axial direction is formed on a side surface of the guiding tube, and a side surface of the connecting portion is formed on the side surface of the connecting portion. A guide pin to be inserted into the guide hole is provided to project, the connecting portion is disposed in the guide cylinder so as to be movable in the axial direction, and the biasing means is provided between the rotating shaft and the push rod. The rotary cap remover according to any one of claims 1 to 3, wherein the rotary cap remover is disposed on the rotary cap remover.   The rotary cap remover according to any one of claims 1 to 4, wherein the cap gripping portion is formed such that the diameter of the recess gradually decreases from the distal end surface toward the proximal end surface. .   The rotary cap removing tool according to any one of claims 1 to 5, wherein the container fixing portion is formed so that an inner diameter gradually decreases from a distal end surface toward a proximal end surface.

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