JP3044209U - Opening / closing jig - Google Patents

Abstract

(57) [PROBLEMS] To provide a jig for easily and surely attaching and detaching a cap without directly touching the cap. A jig for attaching and detaching the cap by rotating a cap for closing the opening, the jig having a portion to be fitted with a screw thread formed around the opening. , The jig has a recess corresponding to the outer shape of the cap and capable of being fitted to the cap,
The cap is attached and detached without directly touching the cap with the hand to open and close the opening, and the jig is manually pulled to release the fitting between the recess and the cap. A jig that can be removed from.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a jig for opening and closing a stopper, and more particularly to a jig that allows the cap to be attached and detached and opened and closed without directly touching the cap.

[0002]

[Prior art]

 Usually, a cap for opening and closing an opening has a portion (including a screw thread) formed around the opening to be fitted with a screw thread, and the cap is opened and closed by rotating the cap in one direction. The opening can be closed by fitting and the opening can be opened by removing the cap by rotating in the opposite direction. Such rotation of the cap is often performed by gripping the cap with a hand and rotating the cap. In this case, it is necessary to directly press the surface of the cap with a hand to generate a sufficient frictional force between the cap and the hand, and then apply a sufficient rotational torque to the cap.

For example, an opening portion of an oil cartridge for supplying oil to an oil cartridge of an oil stove (a petroleum stove main body and a separable oil tank) and a mouthpiece portion for closing the same also have such a structure, The opening portion can be opened and closed by grasping and rotating the base portion, that is, the cap.

[0004]

[Problems to be solved by the device]

 In this way, when the cap is directly grasped by the hand and rotated, the one attached to the surface of the cap is attached to the hand. If it is necessary to prevent the deposits from sticking to the hands, it is necessary to wipe off the surface of the cap thoroughly and wash it, or wear gloves to prevent it from directly touching the cap. There is such a problem. On the other hand, even if the cap portion should not be contaminated by something attached to the hand, it is necessary to wear gloves and the like, and there is a similar problem.

Further, when the cap is directly grasped and opened / closed by a hand, there is a case where sufficient opening / closing torque cannot be applied to the cap due to a slip of the hand on the surface of the cap or the like. In this case, problems such as leakage of the contents due to insufficient tightening of the cap in the opening and the inability to loosen and open the tightened cap occur. For example, kerosene is attached to the outside of the cap (base) attached to the oil inlet of an oil cartridge of an oil stove. There was a problem of adhesion. In order to avoid this problem, it was necessary to take measures such as inserting a large amount of cloth or paper that has the ability to absorb kerosene between the hand and the cap, and wearing gloves. Further, there is a problem that, when a person with strong strength closes the cap with a large torque, a person without strong strength cannot easily open the cap later.

Therefore, in the present invention, a jig is attached to the cap, and the jig is rotated by hand to open and close the cap without touching the cap. It is an object of the present invention to provide a jig that can apply opening / closing torque to a cap.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the jig of the present invention fits a cap that is opened and closed by rotation and does not directly touch the cap, and gives a sufficient opening and closing torque to the cap. The cap is attached / detached and opened / closed. That is, the present invention is a jig for opening and closing the opening and closing the cap by rotating the cap for closing the opening, which has a portion that fits the thread formed around the opening. Then, the jig has a concave portion corresponding to the outer shape of the cap and capable of being fitted with the cap. The concave portion is fitted with the cap by hand, and the jig is rotated by hand. The cap is rotated by rotating the cap, the cap is attached / detached without directly touching the cap to open / close the opening, and the jig is manually pulled to release the fitting between the recess and the cap. A jig that can be detached from the cap.

The jig can be attached to a commonly used cap for closing an opening, which is opened and closed by rotation. That is, the cap referred to in the present invention is for closing the opening because it has a portion that fits into the thread formed around the opening. The part to be fitted with the screw thread means one in which the part and the screw thread are fitted by rotation, and may be, for example, a screw thread fitted with the screw thread or a projection or the like. . Therefore, the cap can be attached to and detached from the opening by rotating the cap. The cap may be formed of metal, resin, or inorganic material. The cap has various shapes such as a cylindrical shape, a polygonal prism shape, and an elliptic cylinder shape, and the jig of the present invention can be suitably used for any shape.

The jig has a recess that corresponds to the shape of the outer portion of the cap to be gripped and that can fit into the outer portion of the cap. Therefore, normally, if the outer portion is cylindrical, polygonal, and elliptic, the recesses are also cylindrical, polygonal, and elliptic, respectively. However, it is not always necessary to make contact with the concave portion over the entire periphery of the outer portion (which is generally parallel to the rotation axis of the cap and is grasped when the cap is rotated), and the cap and the concave portion fit together. It is sufficient that the cap can be easily rotated by rotating the jig during the operation. It is preferable that the recess and the cap can be easily fitted by hand.

When the recess and the cap are fitted together, they are fixed to each other in terms of rotational movement. Therefore, when the jig having the recess is rotated by hand, the cap rotates together with the jig. That is, without directly touching the cap, the cap can be freely attached / detached via the jig between the hand and the cap to open / close the opening. Also, since the outer part of the jig is usually larger than the outer part of the cap, the latter is farther from the rotation axis than the former. Therefore, even if the cap is opened and closed with the same force, the cap can be opened and closed with a larger torque when the jig is used to directly grasp the cap, and the opening and closing can be performed easily and reliably. After the opening and closing operation of the cap is completed, it is preferable that the jig can be easily disengaged from the cap by pulling the jig by hand and the jig can be removed from the cap.

When the jig is made of a material having elasticity, the expansion of the inside of the recess in the direction perpendicular to the rotation axis of the jig causes the rotation axis of the cap when the cap is fitted into the recess. It may be configured to be smaller than the spread in the vertical direction. The difference between the two spreads may be determined by the elasticity of the material forming the jig. Immediately, when the cap is pushed into the concave portion by hand, the concave portion must be expanded by elastic force so that the concave portion and the cap must be fitted together. For example, if a soft material with high elasticity is used, the difference between both spreads may be large, but if a rigid material with low elasticity is used, the difference cannot be fitted unless the difference is small.

According to this structure, since the recess and the cap are closely and closely fitted to each other, the work of rotating and opening and closing the cap using the jig can be smoothly performed. This is preferable not only while the cap is being rotated, but also when the cap removed through the jig is lifted, it is possible to prevent the cap from falling out of the recess. In particular, when the cap has a cylindrical outer shape, this is an effective method for obtaining a sufficient fitting between the recess and the cap that does not slip with respect to rotation. Furthermore, if the cap has a cylindrical shape, it is extremely convenient because a sufficient fitting can be obtained irrespective of the relative positions of both the cap and the concave part in the rotation at the time of fitting.

In order to prevent the cap from falling out of the recess, the force for the jig to tighten the cap fitted in the recess in the direction of the rotation axis of the cap causes The entrance portion of the recess (that is, the lower end portion of the jig when the cap is inserted from the lower side of the jig) may be stronger than the other portions. For this purpose, for example, the side wall of the jig for fastening the cap may be thicker at the inlet portion than at other portions. This may be graded to be progressively thicker, but it may also be formed by forming ribs on the inlet portion of the side wall of the jig where the cap is tightened. Also, by making the concave portion narrower as it approaches the inlet portion, the tightening force can be made stronger at the inlet portion than other portions. In this case, the sidewall may or may not be thicker at the inlet portion than at other portions.

In order to secure the fitting of the recess and the cap, it is preferable to provide a slip groove in the recess. Although any anti-slip groove may be used, it is desirable to use a plurality of grooves parallel to the rotation axis in order to prevent rotational slip between the recess and the cap. Instead of the grooves, the protrusions may be provided in a dotted pattern.

Since the cap is rotated to attach / detach and open / close by gripping and rotating the jig by hand, it is preferable that the shape of the jig is easy to grip by hand. For example, a columnar shape, a polygonal column shape, an elliptical column shape, or the like is preferably used, but a columnar shape is preferable because it is easy to grasp by hand and easy to manufacture.

Materials for forming the jig include rubber, resin, metal and the like. Considering the ease of gripping, chemical stability, etc., a group consisting of oil resistant rubber, urethane, polyethylene, and nylon. It is preferable to use those including those selected more. Further, since it is preferable to have elasticity and prevent slipping with the hand, oil-resistant rubber and urethane are particularly preferable.

In order to prevent the jig and the hand from slipping, it is possible to use a jig having a non-slip groove on the outer circumference. The anti-slip groove may be any groove, but it is preferable to use a plurality of grooves parallel to the rotation axis. Further, projections may be provided in a dotted pattern instead of the grooves.

When the cap is a cap attached to the oil supply port of the oil cartridge of the oil stove, kerosene is attached to the outside of the cap, and when the cap is directly touched to attach / detach to open / close, Kerosene will adhere. Therefore, by attaching the jig to the cap, the cap can be detached and opened without directly touching the cap, so that kerosene can be prevented from adhering to the hand. In addition, when attaching or removing a cap attached to a container that contains substances that should not be adhered to your hands, such as chemicals such as acids, alkalis, poisons, and deleterious substances, pigments, dyes, or strong odors It is desirable to use this jig. In addition, when a person with strong strength closes the cap with a large torque, there often occurs a problem that a person without strength cannot easily open the cap later. By attaching it, it becomes possible for a person without physical strength to easily open and close the cap.

If there is only one size of cap that can be opened and closed by one jig, there are various sizes of caps. Therefore, a large number of jigs can be used depending on the size of the cap. I have to prepare. Therefore, it is more convenient to form a plurality of recesses of different sizes in a concentric circle in the order of size on one jig because one jig can be used for a plurality of caps of different sizes.

[0020]

[Embodiment of the invention]

 Embodiments of the present invention will be described in detail with reference to the drawings based on examples, but the present invention is not limited thereto.

FIG. 1 is a front view of an oil cartridge used in an oil stove in which a cylindrical cap (base) is attached to a fuel filler port. The oil cartridge 1 is composed of a main body 3 and a cap (base) 5. The cap (base) 5 has threads 11 that mate with threads 9 (mostly not visible) formed around an opening 7 (not visible hidden in the cap) of the oil cartridge 1. By grasping and rotating the cap (base) 5 by hand, the cap (base) 5 can be attached and detached to open and close the opening 7 of the oil cartridge 1. A nozzle portion 13 for injecting kerosene can be seen in the cap (base) 5.

FIG. 2 is a front view when the jig of one embodiment of the present invention is attached to the cap (base) 5. In this figure, for ease of understanding, only the jig is shown cut along the plane passing through the rotation axis of the cap (base) 5. A cap (base) 5 is attached to the main body 3. A nozzle portion 13 for injecting kerosene can be seen in the cap (base) 5. The jig 21 is attached to the cap (base) 5. The recess 23 of the jig 21 is fitted into the cap (base) 5. Although the recess 23 has a cylindrical shape, it has a diameter slightly smaller than the diameter of the cap (base) 5, and since the jig 21 is made of elastic oil-resistant rubber, The cap (base) 5 can be pushed into the recess 23. Further, the upper side surface of the cap (base) 5 is slightly recessed in the recess 23, indicating that the both are closely fitted. Moreover, a groove for preventing slippage may be provided in the recess 23. Although the shape of the upper portion of the jig 21 is a cylindrical shape, it may be a polygonal prism shape or an elliptic cylinder shape. Further, a non-slip groove may be provided on the outer circumference of the jig 21. Further, on the upper part of the jig 21, there is provided a portion 25 through which a string for hanging when the jig 21 is stored is passed. In this state, the cylindrical upper portion of the jig 21 is gripped by a hand and the jig 21 is rotated, whereby the cap (base) 5 can be rotated and easily attached and detached. Further, at that time, since the recess 23 and the cap (base) 5 are tightly fitted together, not only the slip in the rotation direction is prevented but also the jig 21 fitted with the cap (base) 5 is moved upward. It is also possible to prevent the cap (base) 5 from falling off when lifted up.

FIG. 3 is a front view when a jig according to another embodiment of the present invention is attached to the cap (base) 5. In this figure, for ease of understanding, only the jig is shown cut along the plane passing through the rotation axis of the cap (base) 5. A cap (base) 5 is attached to the main body 3. A nozzle portion 13 for injecting kerosene can be seen in the cap (base) 5. The jig 31 is attached to the cap (base) 5. The jig 31 has recesses 33 and 35 having different sizes, and the recesses 33 and 35 are concentrically formed in order of size. Therefore, one jig 31 can be used for two different sizes of caps (bases) that fit into the recesses 33 and the recesses 35. Therefore, it is necessary to prepare multiple jigs for each size according to the size of the cap, but it is possible to reduce the number of jigs required by providing multiple recesses. In addition, it can be made excellent in economical efficiency and effective use of space. In the case of this embodiment, the concave portion 35 of the jig 31 is fitted in the cap (base) 5. In addition, an air vent 39 is provided inside the jig 31 for discharging the air enclosed in the recesses 33, 35 to the outside when the cap (base) 5 is fitted in the recesses 33, 35. As a result, repulsion caused by compressing the air can be avoided, and the cap (base) 5 can be smoothly inserted into the recesses 33, 35 and fitted therein. Each of the recesses 33 and 35 has a cylindrical shape, but the recess 35 has a diameter smaller than the diameter of the cap (base) 5, and the jig 31 is formed of an oil-resistant rubber having elasticity. Therefore, the cap (base) 5 can be pushed into the recess 35. Along with this, the concave portion 33 also has a shape in which the lower portion is slightly expanded. The upper portion of the side surface of the cap (base) 5 is slightly recessed in the recess 35, indicating that they are tightly fitted together.

On the other hand, the side wall (the lower skirt of the jig forming the side surface of the recess) for tightening the cap gradually becomes thinner as it goes downward in the figure (as it approaches the entrance of the recess). It is increasing. By doing so, the force with which the cap is tightened in the direction of the rotation axis of the cap becomes stronger as it goes downward in the figure (as it approaches the recess inlet portion). Therefore, even when the cap removed by the jig is lifted, the cap can be effectively prevented from falling out of the recess. In addition to providing a thickness gradient on the entire side wall, ribs can be provided on the lower end of the side wall (the entrance of the recess) over the entire side wall. Further, the recess itself may be narrowed as it goes downward in the figure (as it approaches the entrance of the recess).

Further, the recesses 33, 35 may be provided with slip-proof grooves. The shape of the upper portion of the jig 31 is a column, but it may be a polygonal column or an elliptic column. Further, a groove for preventing slippage may be provided on the outer circumference of the jig 31. Further, on the upper part of the jig 31, there is provided a portion 37 through which a string for hanging when the jig 31 is stored is passed. In this state, the cylindrical upper portion of the jig 31 is gripped by hand, and the jig 31 is rotated, whereby the cap (base) 5 can be rotated and easily attached and detached. Further, at that time, since the concave portion 35 and the cap (base) 5 are tightly fitted together, not only the slip in the rotation direction is prevented but also the jig 31 fitted with the cap (base) 5 is moved upward. It is also possible to prevent the cap (base) 5 from falling off when lifted up.

[0026]

[Effect of the invention]

 Since the method of the present invention is configured as described above, it has the following effects.

By attaching the jig to the cap for opening and closing the opening, the cap can be attached and detached easily and surely without directly touching the cap.

[Brief description of the drawings]

FIG. 1 is a front view of an oil cartridge of an oil stove in which a cap (base) is attached to a fuel filler port.

FIG. 2 is a front view of the jig of one embodiment of the present invention when it is attached to a cap (base).

FIG. 3 is a front view of the jig according to the embodiment of the present invention when attached to a cap (base).

[Explanation of symbols]

1 Petroleum Cartridge 3 Main Body 5 Cap (Base) 7 Opening 9 Threads Formed Around the Opening 11 Threads Formed on Cap (Base) 13 Nozzle 21, 31 Jig 23, 33, 35 Recess 25, 37 String attachment part 39 Air vent

Claims (14)

[Utility model registration claims] 1. A jig for attaching and detaching the cap by opening and closing the opening by rotating a cap for closing the opening, the jig having a portion fitted around a thread formed around the opening. The jig has a concave portion corresponding to the outer shape of the cap and capable of being fitted with the cap, and the concave portion is fitted with the cap by hand, and the jig is rotated by hand. The cap is rotated by, the cap is attached and detached without directly touching the cap, the opening is opened and closed, and the jig is manually pulled to release the fitting between the recess and the cap. A jig that can be removed from the cap. 2. The expansion of the inside of the recess in the direction perpendicular to the rotation axis of the jig is smaller than the corresponding expansion of the cap in the direction perpendicular to the rotation axis of the cap, and the jig is elastic. Is formed of a material having
The jig according to claim 1, wherein when the cap is pushed into the concave portion by hand, the concave portion expands in accordance with the elasticity, and the concave portion and the cap are closely fitted to each other. 3. The jig according to claim 1, wherein the cap has a cylindrical outer shape. 4. The jig according to claim 1, wherein a portion of the jig to be gripped has a cylindrical shape. 5. The jig according to claim 1, wherein the material contains a material selected from the group consisting of oil resistant rubber, urethane, polyethylene, and nylon. 6. The cap is a cap attached to a filler port of an oil cartridge of an oil stove.
6. The jig according to any one of 5 to 5. 7. A cap attached to the opening of a container storing the one selected from the group consisting of acids, alkalis, poisons, deleterious substances, pigments, dyes, and those having a strong odor. The jig according to any one of claims 1 to 5. 8. The jig according to claim 1, wherein the concave portion is formed by concentrically forming a plurality of concave portions having different sizes in order of size. 9. The recess has a non-slip groove.
The jig according to any one of claims 1 to 8. 10. The jig according to claim 1, which has a non-slip groove on the outer circumference of the jig. 11. The force with which the jig tightens the cap fitted in the recess in the direction of the rotation axis of the cap is stronger than the other part at the entrance of the recess for inserting the cap. The jig according to any one of claims 1 to 10, which is a jig. 12. The jig according to claim 11, wherein a side wall of the jig for fastening the cap is thicker at the inlet portion than at other portions. 13. The jig according to claim 12, wherein a rib is formed on the inlet portion of the side wall of the jig for fastening the cap. 14. The jig according to any one of claims 11 to 13, wherein the concave portion is narrowed toward the inlet portion.